[go: up one dir, main page]

WO2018180614A1 - Filtre de filtration - Google Patents

Filtre de filtration Download PDF

Info

Publication number
WO2018180614A1
WO2018180614A1 PCT/JP2018/010517 JP2018010517W WO2018180614A1 WO 2018180614 A1 WO2018180614 A1 WO 2018180614A1 JP 2018010517 W JP2018010517 W JP 2018010517W WO 2018180614 A1 WO2018180614 A1 WO 2018180614A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame member
bent portion
metal porous
holding
filtration filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/010517
Other languages
English (en)
Japanese (ja)
Inventor
萬壽　優
近藤　孝志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of WO2018180614A1 publication Critical patent/WO2018180614A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/06—Flat membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires

Definitions

  • the present invention relates to a filtration filter that filters a filtration object contained in a fluid.
  • Patent Document 1 describes a structure in which an outer peripheral portion of a medium (nonwoven fabric) is sandwiched and held between a first frame member and a second frame member.
  • An object of the present invention is to provide a filtration filter that can further suppress liquid leakage.
  • a filtration filter of one embodiment of the present invention is a metal having a membrane part that filters a filtration object contained in a fluid, and an annular holding part provided on the outer peripheral part of the membrane part.
  • a filtration filter comprising:
  • the holding part of the metal porous membrane is A first bent portion that bends at an obtuse angle toward the second frame member;
  • a second bent portion located on the outer edge side of the holding portion with respect to the first bent portion, and bent in a direction opposite to the first bent portion;
  • the first frame member is in contact with a portion between the first bent portion and the second bent portion on the first main surface side of the metal porous membrane, and the second frame member is formed of the metal porous membrane.
  • the first frame member By contacting a portion between the first bent portion and the second bent portion on the second main surface side, a portion between the first bent portion and the second bent portion is the first frame member.
  • the second frame member On the outer edge side of the holding part with respect to the second bent part, the wave-like part in a direction perpendicular to the plane in which the film part extends is provided between the first frame member and the second frame member. It is comprised so that a clearance gap larger than the length of the topmost part and bottommost part may be provided.
  • liquid leakage can be further suppressed.
  • FIG. 2 is a cross-sectional view taken along line A1-A1 of FIG. It is an expansion perspective view of the metal porous membrane with which the filtration filter of FIG. 1 is provided. It is an expansion perspective view of the wavy part of the metal porous membrane with which the filtration filter of FIG. 1 is provided. It is a partially expanded sectional view which shows an example of the manufacturing method of the filtration filter of FIG. It is a partially expanded sectional view which shows the process following FIG. 5A. It is a partially expanded sectional view which shows the process of following FIG. 5B. It is a partial expanded sectional view of the 1st frame member.
  • FIG. 7B is an enlarged plan view of FIG. 7A.
  • FIG. 8A It is a partial top view of a metal porous membrane when the angle which the virtual straight line which connects a 1st corner
  • FIG. 8A It is an enlarged plan view of FIG. 8A.
  • FIG. 9B is an enlarged plan view of FIG. 9A. It is a partially expanded sectional view which shows the modification of a 1st frame member and a 2nd frame member. It is a partially expanded sectional view which shows the modification of a 1st frame member and a 2nd frame member. It is a partially expanded sectional view which shows the modification of a 1st frame member and a 2nd frame member. It is a partially expanded sectional view which shows the modification of a 1st frame member and a 2nd frame member.
  • the concave portion is provided on the outer peripheral surface of the first frame member
  • the convex portion is provided on the inner peripheral surface of the second frame member
  • the concave portion and the convex portion are arranged with the medium disposed therebetween.
  • the medium is held by snap-fitting. According to this configuration, the medium is in close contact between the outer peripheral surface of the first frame member and the inner peripheral surface of the second frame member.
  • the present inventors sandwiched a portion between the first bent portion and the second bent portion bent at an obtuse angle in the metal porous film between the first frame member and the second frame member, so that the metal It has been found that the load applied to the porous membrane can be suppressed to prevent the metal porous membrane from being broken, and the liquid leakage can be further suppressed. Further, it has been found that by providing a wave-like portion on the outer edge side of the second bent portion, the wave-like portion is prevented from coming off and the holding force and tension of the metal porous film can be maintained.
  • the waved portion is compressed into the first frame member and the second frame member.
  • the filtration filter of one embodiment of the present invention is a metal porous membrane having a membrane portion for filtering a filtration object contained in a fluid, and an annular holding portion provided on an outer peripheral portion of the membrane portion, An annular first frame member and an annular second frame member sandwiching the holding portion of the metal porous membrane;
  • a filtration filter comprising:
  • the holding part of the metal porous membrane is A first bent portion that bends at an obtuse angle toward the second frame member;
  • a second bent portion located on the outer edge side of the holding portion with respect to the first bent portion, and bent in a direction opposite to the first bent portion;
  • a wavy portion located on the outer edge side of the holding portion with respect to the second bent portion,
  • the first frame member is in contact with a portion between the first bent portion and the second bent portion on the first main surface side of the metal porous membrane, and the second frame member is formed of the metal porous membrane.
  • the first frame member By contacting a portion between the first bent portion and the second bent portion on the second main surface side, a portion between the first bent portion and the second bent portion is the first frame member.
  • the second frame member On the outer edge side of the holding part with respect to the second bent part, the wave-like part in a direction perpendicular to the plane in which the film part extends is provided between the first frame member and the second frame member. It is comprised so that a clearance gap larger than the length of the topmost part and bottommost part may be provided.
  • the most of the wavy portion is between the first frame member and the second frame member.
  • the part between the said 1st bending part and the said 2nd bending part is pressed by the said 1st frame member and the said 2nd frame member. According to this configuration, the first frame member and the second frame member are in close contact with the holding portion, and liquid leakage can be further suppressed, and the holding power of the metal porous membrane can be further improved.
  • the wavy portion is constituted by wrinkles of the metal porous film. According to this configuration, there is no need to provide a separate member as the corrugated portion.
  • the corrugated portion can be easily formed by using the force when the holding portion is sandwiched between the first frame member and the second frame member. can do.
  • the first frame member has an inclined surface or a curved surface that moves away from the second frame member side toward the outer edge side of the holding portion with respect to a plane on which the film portion extends, and the inclined surface or It is preferable that a portion between the first bent portion and the second bent portion is in contact with the curved surface. According to this configuration, it is possible to suppress a load applied to the metal porous film, to prevent the metal porous film from being broken, and to further suppress liquid leakage.
  • the first frame member has a first corner portion that is located in the vicinity of the first bending portion and is a starting point of the inclined surface or the curved surface in a cross section cut in a thickness direction, and the second bending portion.
  • an imaginary straight line connecting the first corner and the second corner with respect to the plane is less than 0 degree. It is preferably inclined at an angle of less than 60 degrees. According to this configuration, it is possible to suppress a load applied to the metal porous film, to prevent the metal porous film from being broken, and to further suppress liquid leakage.
  • the wrinkle when a wrinkle that becomes a wave-like portion is formed by using a force when the holding portion of the metal porous membrane is sandwiched between the first frame member and the second frame member, the wrinkle is the first bending. It can suppress that it penetrate
  • the first frame member has a first corner portion that is located in the vicinity of the first bending portion and is a starting point of the inclined surface or the curved surface in a cross section cut in a thickness direction, and the second bending portion.
  • an imaginary straight line connecting the first corner and the second corner with respect to the plane is 30 degrees or more. It is preferable to incline at an angle of less than 90 degrees. According to this configuration, the holding power of the metal porous membrane can be sufficiently ensured.
  • the virtual straight line is inclined at an angle of 30 degrees or more and less than 60 degrees with respect to the plane. According to this configuration, liquid leakage can be further suppressed, and a sufficient holding power for the metal porous membrane can be secured.
  • the virtual straight line is inclined at an angle of 30 degrees to 45 degrees with respect to the plane.
  • the liquid leakage can be further suppressed, and the holding power of the metal porous film can be sufficiently secured.
  • FIG. 1 is a plan view showing a schematic configuration of a filtration filter according to an embodiment of the present invention.
  • 2 is a cross-sectional view taken along line A1-A1 of FIG.
  • a filtration filter 1 includes a metal porous membrane 2 that filters an object to be filtered contained in a fluid, and an annular frame that sandwiches the outer periphery of the metal porous membrane 2. 3 is provided.
  • the filtration object is a biological substance contained in the liquid.
  • the “biological substance” means a substance derived from a living organism such as a cell (eukaryotic organism), a bacterium (eubacteria), or a virus.
  • cells eukaryotes
  • iPS cells artificial pluripotent stem cells
  • ES cells ES cells
  • stem cells mesenchymal stem cells
  • mononuclear cells single cells, cell masses, suspension cells, adhesive cells, nerves.
  • bacteria truee bacteria
  • Escherichia coli and tuberculosis examples of bacteria (true bacteria) include Escherichia coli and tuberculosis.
  • the metal porous membrane 2 has a membrane portion 21 that filters a filtration target contained in a fluid, and an annular holding portion 22 provided on the outer peripheral portion of the membrane portion 21. .
  • the film part 21 has a first main surface 21a and a second main surface 21b facing each other.
  • the film part 21 is provided with a plurality of through holes 21c that penetrate the first main surface 21a and the second main surface 21b.
  • the through-hole 21c separates a biological substance from the liquid.
  • the shape and size of the through-hole 21c are appropriately set according to the shape and size of the biological material.
  • the through holes 21c are arranged at regular intervals or periodically, for example.
  • the shape of the through hole 21c is, for example, a square, a regular hexagon, a circle, or an ellipse as viewed from the first main surface 21a side of the film part 21.
  • the through holes 21c are arranged in a square lattice as shown in FIG.
  • the size of the through hole 21c is, for example, from 0.1 ⁇ m to 500 ⁇ m in length and from 0.1 ⁇ m to 500 ⁇ m in width.
  • the interval between the through holes 21c is, for example, greater than 1 time and less than or equal to 10 times, more preferably less than or equal to 3 times the opening diameter of the through holes 21c.
  • membrane part 21 is 10% or more, for example.
  • Examples of the material of the metal porous film 2 include gold, silver, copper, platinum, nickel, stainless steel, palladium, titanium, cobalt, alloys thereof, and oxides thereof.
  • the dimension of the metal porous membrane 2 is, for example, 6 mm in diameter.
  • the thickness of the metal porous membrane 2 is, for example, from 0.1 ⁇ m to 100 ⁇ m, and preferably from 0.1 ⁇ m to 50 ⁇ m.
  • the external shape of the metal porous film 2 is, for example, any one of a circle, an ellipse, and a polygon. In the present embodiment, the metal porous membrane 2 has a circular outer shape.
  • the holding portion 22 which is the outer peripheral portion of the metal porous film 2 may be provided with the through hole 21c or may not be provided with the through hole 21c.
  • the frame 3 includes a first frame member 31 and a second frame member 32, and a holding portion for the metal porous film 2 between the first frame member 31 and the second frame member 32. 22 is sandwiched.
  • the first frame member 31 and the second frame member 32 are formed in an annular shape (for example, an annular shape).
  • Examples of the material of the first frame member 31 and the second frame member 32 include metals such as duralumin and aluminum, and resins such as polyethylene, polystyrene, polypropylene, polycarbonate, polyacetal, and polyetherimide.
  • the holding part 22 of the metal porous film 2 has a first bent part 22a, a second bent part 22b, and a waved part 22c.
  • the first bent portion 22a is a portion that bends at an obtuse angle toward the second main surface 21b.
  • the second bent portion 22b is a portion that is located closer to the outer edge 22d of the holding portion 22 than the first bent portion 22a and bends in a direction opposite to the first bent portion 22a (first main surface 21a side).
  • the first frame member 31 and the second frame member 32 sandwich the portion between the first bent portion 22a and the second bent portion 22b.
  • a portion between the first bent portion 22 a and the second bent portion 22 b is pressed by the first frame member 31 and the second frame member 32.
  • the first frame member 31 has an inclined surface 31 a that moves away from the second frame member 32 toward the outer edge 22 d of the holding portion 22 with respect to the plane PL on which the film portion 21 extends.
  • a portion between the first bent portion 22a and the second bent portion 22b on the first main surface side (upper side in FIG. 2) of the metal porous film 2 is in contact with the inclined surface 31a.
  • the second frame member 32 has an inclined surface 32 a that is parallel or substantially parallel to the inclined surface 31 a of the first frame member 31. A portion between the first bent portion 22a and the second bent portion 22b on the second main surface side (lower side in FIG. 2) of the metal porous film 2 is in contact with the inclined surface 32a.
  • the corrugated portion 22c is located on the outer edge 22d side of the holding portion 22 relative to the second bent portion 22b, and is a portion that undulates in the circumferential direction CD of the holding portion 22 as shown in FIG.
  • the corrugated portion 22 c functions as a stopper that prevents the metal porous film 2 from falling out of the frame 3.
  • the corrugated portion 22 c is constituted by wrinkles of the holding portion 22 of the metal porous film 2.
  • a gap CL (see FIG. 2) is provided between the first frame member 31 and the second frame member 32 on the outer edge 22d side of the holding portion 22 with respect to the second bent portion 22b.
  • the gap CL is larger than the length L1 (see FIG. 4) between the topmost part 22ca and the bottommost part 22cb of the wave-like part 22c in the direction orthogonal to the plane PL in which the film part 21 extends.
  • the gap CL prevents the corrugated portion 22 c from being compressed by the first frame member 31 and the second frame member 32.
  • 5A to 5C are partially enlarged cross-sectional views showing an example of a method for manufacturing the filter 1.
  • the holding portion 22 for the metal porous film 2 is disposed between the first frame member 31 and the second frame member 32. At this time, the holding part 22 is flush with the film part 21. That is, the metal porous film 2 is a flat thin film.
  • the first frame member 31 and the second frame member 32 are brought into contact with the holding portion 22 of the metal porous film 2. Accordingly, the outer peripheral portion of the holding portion 22 is pressed to the second main surface 21b side by the first frame member 31, and the inner peripheral portion of the holding portion 22 is pressed to the first main surface 21a side by the second frame member 32. Then, the holding part 22 starts to deform. Then, the holding portion 22 is pulled downward with the portion pressed by the first frame member 31 and the second frame member 32 as a power point, and tension is applied to the film portion 21.
  • the portion between the first bent portion 22a and the second bent portion 22b that bend at an obtuse angle in the holding portion 22 of the metal porous membrane 2 is the first frame member 31 and the first bent portion.
  • the two frame members 32 are configured to be sandwiched. Thereby, it can suppress that the metal porous membrane 2 is pulled to the outer peripheral side, and an excessive load is applied to the metal porous membrane 2. As a result, the metal porous membrane 2 can be prevented from being broken and liquid leakage can be further suppressed.
  • the corrugated portion 22c that undulates in the circumferential direction CD is provided closer to the outer edge 22d of the holding portion 22 than the second bent portion 22b. Therefore, the wave-like part 22c becomes a retaining, and the holding force (tension) of the metal porous film 2 can be maintained.
  • the part between the 1st bending part 22a and the 2nd bending part 22b is pressed by the 1st frame member 31 and the 2nd frame member 32. .
  • the 1st frame member 31 and the 2nd frame member 32 closely_contact
  • the wavy portion 22 c is constituted by wrinkles of the metal porous film 2.
  • the corrugated portion 22c is easily formed by using the force when the holding portion 22 is sandwiched between the first frame member 31 and the second frame member 32. can do. At this time, there is no need to provide a separate member as the waved portion 22c.
  • the 2nd frame member 32 side is as the 1st frame member 31 goes to the outer edge 22d side of the holding
  • FIG. 6 is a partially enlarged cross-sectional view of the first frame member 31.
  • the first frame member 31 has a first corner portion 31b and a second corner portion 31c in a cross section cut in the thickness direction.
  • angular part 31b is a part which is located in the vicinity of the 1st bending part 22a, and becomes a starting point of the inclined surface 31a.
  • the second corner portion 31c is a portion that is located in the vicinity of the second bending portion 22b and that is the end point of the inclined surface 31a.
  • ⁇ an angle formed by a virtual straight line VL connecting the first corner portion 31b and the second corner portion 31c with respect to the plane PL.
  • the holding portion 22 is held when the holding portion 22 is sandwiched between the first frame member 31 and the second frame member 32 having the inclined surface 31a of the angle ⁇ , and then the first frame member 31 and the second frame member 32 are removed.
  • the deformation state is shown in FIGS. 7A to 9B.
  • FIG. 7A is a partial plan view of the metal porous membrane 2 when the angle ⁇ is 60 degrees.
  • FIG. 7B is an enlarged plan view of FIG. 7A.
  • FIG. 8A is a partial plan view of the metal porous membrane 2 when the angle ⁇ is 45 degrees.
  • FIG. 8B is an enlarged plan view of FIG. 8A.
  • FIG. 9A is a partial plan view of the metal porous membrane 2 when the angle ⁇ is 30 degrees.
  • FIG. 9B is an enlarged plan view of FIG. 9A.
  • the metal porous membrane 2 an extremely thin metal porous membrane having a thickness of 1 ⁇ m and a diameter of the through hole 21c of 2 ⁇ m was used.
  • 7A to 9B a plurality of holes illustrated between the first bent portion 22a and the second bent portion 22b are holes provided to improve the production efficiency of the metal porous film 2. The function of the filter 1 is not affected.
  • the angle ⁇ is 60 degrees
  • the wrinkles that become the wavy portions 22c are formed using the force at the time of holding the holding portion 22, and the load is concentrated on a specific location.
  • the wrinkles may occur unevenly.
  • a large wrinkle is generated, and the wrinkle may enter a portion between the first bent portion 22a and the second bent portion 22b, thereby forming a groove that causes liquid leakage.
  • FIGS. 8A to 9B when the angle ⁇ is 30 degrees or 45 degrees, the load is dispersed and wrinkles are generated more uniformly. As a result, the wrinkle is generated only in the wavy portion 22c.
  • the angle ⁇ is preferably greater than 0 degree and less than 60 degrees.
  • the angle ⁇ is 30 degrees, the wrinkle unevenness that becomes the wavy portion 22c is considerably reduced. If the unevenness of the wrinkle becomes smaller than this, the wrinkle does not function as a retaining and the holding force (tension) of the metal porous film 2 may not be sufficiently secured.
  • the angle ⁇ is preferably 30 degrees or more and less than 90 degrees.
  • the angle ⁇ is more preferably 30 degrees or more and less than 60 degrees, and more preferably 30 degrees or more and 45 degrees or less. It is even more preferable.
  • the metal porous membrane 2 is torn or not depends on the thickness of the metal porous membrane 2, but by setting the angle ⁇ to the above range, the thickness of the metal porous membrane 2 is a concern. The need to do so can be eliminated.
  • the filtering object is a biological substance contained in the liquid, but the present invention is not limited to this.
  • the object to be filtered may be a substance contained in a gas. That is, the filtration object may be a substance contained in the fluid, and may be, for example, PM2.5 contained in the air.
  • the metal porous membrane 2 is used for filtering a biological substance from a liquid, but the present invention is not limited to this.
  • the metal porous membrane 2 may be used to concentrate a liquid.
  • each corner of the first frame member 31 and the second frame member 32 may be formed to be bent at an acute angle, a right angle, or an obtuse angle.
  • the inclined surface 31 a of the first frame member 31 may be longer than the inclined surface 32 a of the second frame member 32.
  • the part 31d of the first frame member 31 and the part 32b of the second frame member 32 forming the gap CL are parallel or substantially parallel to the plane PL.
  • the present invention is not limited to this.
  • a part 31d of the first frame member 31 and a part 32b of the second frame member 32 that form the gap CL are You may incline to the 2nd frame member 31 side.
  • the recessed part 32c may be formed in the part 32b of the 2nd frame member 31 which forms the clearance gap CL.
  • the second bent portion 22b can be bent in the direction opposite to the first bent portion 22a.
  • the wave-like part 22c can be easily formed using the force at the time of clamping the holding
  • the surface (upper surface) of the first frame member 31 is configured to be flush with or substantially flush with the plane PL on which the film portion 21 extends. Is not limited to this. As shown in FIG. 15, the surface (upper surface) of the first frame member 31 may be arranged so as to be shifted from the plane PL.
  • the 1st frame member 31 shall have the inclined surface 31a which leaves
  • the present invention is not limited to this.
  • the first frame member 31 has a curved surface 31e that moves away from the second frame member 32 toward the outer edge 22d (see FIG. 2) side of the holding portion 22 with respect to the plane PL. You may comprise. In this case, as shown in FIG.
  • the inclination angle of the curved surface 31e of the first frame member 31 is an angle ⁇ formed by a virtual straight line VL connecting the first corner portion 31b and the second corner portion 31c with respect to the plane PL.
  • the preferable inclination angle of the curved surface 31e of the first frame member 31 is the same as the preferable inclination angle of the inclined surface 31a of the first frame member 31 described above.
  • what is necessary is just to comprise the 2nd frame member 32 so that it may have the curved surface 32d corresponding to the curved surface 31e of the 1st frame member 31, as shown in FIG.
  • the inclined surface 31a is a flat inclined surface, but the present invention is not limited to this.
  • the inclined surface 31a may be composed of a plurality of inclined surfaces 31f and 31g having different inclination angles.
  • the inclined surface 32 a of the second frame member 32 may be configured by a plurality of inclined surfaces 32 e and 32 f so as to correspond to the inclined surfaces 31 f and 31 g of the first frame member 31.
  • the wavy portion 22c is prevented from contacting both the part 31d of the first frame member 31 and the part 32b of the second frame member 32. It is not limited to. The wavy portion 22 c may contact either one of the part 31 d of the first frame member 31 and the part 32 b of the second frame member 32.
  • the filtration filter according to the present invention can further suppress liquid leakage, it is useful for, for example, filtration of liquids containing biological substances.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Filtering Materials (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

L'invention concerne un filtre de filtration qui est apte à supprimer en plus une fuite de liquide. Un filtre de filtration selon la présente invention comprend: un film poreux métallique ayant une partie film qui effectue une filtration d'un objet soumis à une filtration, l'objet étant inclus dans un fluide, et une partie de maintien disposée au niveau de la périphérie externe de la partie de film; et un premier élément de cadre et un second élément de cadre qui maintiennent la partie de maintien du film poreux métallique. La partie de maintien du film poreux métallique comporte: une première partie de courbure qui se courbe selon un angle obtus sur le côté du second élément de cadre; une seconde partie de courbure qui est située plus près du côté périphérique externe de la partie de maintien que l'est la première partie de courbure et se courbe dans la direction opposée à la direction dans laquelle la première partie de courbure fléchit; et une partie en ondulation qui est située plus près du côté périphérique externe de la partie de maintien que l'est la seconde partie de courbure. Le premier élément de cadre et le second élément de cadre maintiennent une partie entre la première partie de courbure et la seconde partie de courbure. Sur le côté plus proche du côté périphérique externe de la partie de maintien que l'est la seconde partie de courbure, un espace supérieur à la longueur entre la partie la plus basse et la partie la plus haute de la partie en ondulation dans la direction orthogonale au plan sur lequel la partie de film s'étend, est agencé entre le premier élément de cadre et le second élément de cadre.
PCT/JP2018/010517 2017-03-30 2018-03-16 Filtre de filtration Ceased WO2018180614A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017068533A JP2020108870A (ja) 2017-03-30 2017-03-30 濾過フィルタ
JP2017-068533 2017-03-30

Publications (1)

Publication Number Publication Date
WO2018180614A1 true WO2018180614A1 (fr) 2018-10-04

Family

ID=63675524

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/010517 Ceased WO2018180614A1 (fr) 2017-03-30 2018-03-16 Filtre de filtration

Country Status (2)

Country Link
JP (1) JP2020108870A (fr)
WO (1) WO2018180614A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023282002A1 (fr) * 2021-07-07 2023-01-12 株式会社村田製作所 Filtre

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07136411A (ja) * 1993-11-19 1995-05-30 Shinko Pantec Co Ltd 濾過装置に於ける濾材の取付構造
JPH08266820A (ja) * 1995-04-03 1996-10-15 Nok Corp オイルストレーナ
US20150048022A1 (en) * 2013-08-14 2015-02-19 Honda Motor Co., Ltd. O-ring filter seal, assembly and method
WO2017022419A1 (fr) * 2015-07-31 2017-02-09 株式会社村田製作所 Filtre de filtration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07136411A (ja) * 1993-11-19 1995-05-30 Shinko Pantec Co Ltd 濾過装置に於ける濾材の取付構造
JPH08266820A (ja) * 1995-04-03 1996-10-15 Nok Corp オイルストレーナ
US20150048022A1 (en) * 2013-08-14 2015-02-19 Honda Motor Co., Ltd. O-ring filter seal, assembly and method
WO2017022419A1 (fr) * 2015-07-31 2017-02-09 株式会社村田製作所 Filtre de filtration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023282002A1 (fr) * 2021-07-07 2023-01-12 株式会社村田製作所 Filtre

Also Published As

Publication number Publication date
JP2020108870A (ja) 2020-07-16

Similar Documents

Publication Publication Date Title
US11202996B2 (en) Filtration filter
JP6645576B2 (ja) 濾過フィルタデバイス
US10926229B2 (en) Filtration filter
US10729993B2 (en) Filtration filter
CN109414631B (zh) 过滤器设备
JP6443604B1 (ja) 細胞濾過フィルタ
WO2018180614A1 (fr) Filtre de filtration
US11987786B2 (en) Device for reducing size of biological tissue
JP6027033B2 (ja) 弾性部材
US11389752B2 (en) Filtration device
WO2017141610A1 (fr) Dispositif de filtre de filtration
US12440785B2 (en) Filtration filter and filtration device
WO2019058865A1 (fr) Dispositif de filtration
WO2020039936A1 (fr) Filtre
JPWO2021054001A5 (fr)
JPWO2009028121A1 (ja) 振動板及びスピーカ
US20230053689A1 (en) Filter
WO2017057346A1 (fr) Matériau liant, assemblage de cellules, procédé d'assemblage de cellules et procédé de conservation de cellules

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18776649

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18776649

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP