JP6878351B2 - モータ - Google Patents
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- JP6878351B2 JP6878351B2 JP2018092718A JP2018092718A JP6878351B2 JP 6878351 B2 JP6878351 B2 JP 6878351B2 JP 2018092718 A JP2018092718 A JP 2018092718A JP 2018092718 A JP2018092718 A JP 2018092718A JP 6878351 B2 JP6878351 B2 JP 6878351B2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1222—Hot rolling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1233—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1266—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest between cold rolling steps
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
- H01F1/14775—Fe-Si based alloys in the form of sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/02—Cores, Yokes, or armatures made from sheets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Child & Adolescent Psychology (AREA)
- Health & Medical Sciences (AREA)
- Soft Magnetic Materials (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Description
鋼板にCを過度に添加するとモータのヒステリシス損が劣化するため、Cの含有量は0.010%以下とする。
Siは、鋼板の比抵抗を増大させてモータの渦流損を低減するのに有効な添加元素である。しかしながら、鋼板にSiを過度に添加すると、モータコアとして加工することが困難となるだけでなく鋼板の飽和磁束密度が低下する。このため、Siの含有量は、2.0%以上7.0%以下の範囲内とする。なお、Siを4.0%以上添加すると、鋼板の圧延性が損なわれるので、例えば冷延加工後に化学気相浸珪法を用いてSiを追加で添加してもよい。さらに、この場合、鋼板の中心層と表面層のSi濃度差が0.5%以上4.0%以下の範囲内にあり、且つ、飽和磁束密度Bsが2.0T以上を示すようにSiを添加することにより、渦流損を低減しながらもモータ体格を小型化でき有利である。
Al,Mnは、鋼板の比抵抗を増大させてモータの渦流損を低減するのに有効な元素である。しかしながら、Al,Mnを過度に添加すると粒成長性に悪影響をもたらし、モータのヒステリシス損が劣化する。このため、Alの含有量は2.0%以下、Mnの含有量は0.05%以上1.0%以下の範囲内とする。
S,Nは、過度に添加すると析出物の生成によって粒成長性を阻害し、モータのヒステリシス損の増大を招く。このため、S及びNの含有量は共に0.005%以下とし、残部はFe及び不可避的不純物とする。
上記の組成に加えて、P:0.01%以上0.1%以下、Sn:0.001%以上0.1%以下、Sb:0.001%以上0.1%以下、Mo:0.001%以上0.01%以下の中から選ばれるいずれか1種以上を含有することで鋼板の磁束密度を向上させることが可能であり、添加することが望ましい。但し、いずれの元素の過度の添加は鋼板の製造性や磁気特性を劣化させる。
磁界変化ΔH=50A/mに対する磁束密度の変化ΔBが0.50T以上となる急峻な磁束密度変化を持つ鋼板は、バッテリー駆動等の電源(電圧、電流、あるいはその両方)に制限があるモータの駆動時における磁束密度の制御を容易にさせる。
鋼板の板厚を低減することはモータの渦電流を低減させるのに有効であるが、鋼板の板厚が薄いほど製造コストやモータコアの形成にコストの増大を招く。このため、鋼板の板厚は、0.05mm以上0.20mm以下の範囲内とする。
小型高速モータにおける励磁周波数は数百〜10kHz程度であり、さらに実際のモータ駆動ではインバータによるPWM励磁等によって高周波での鉄損が重要となる。このような高周波での損失は渦流損が支配的になるため、1000Hz−1.0Tにおける渦流損がヒステリシス損より小さくない場合、鉄心で生じる損失が大きく、モータの効率を損なうだけでなく、発熱を避けるためにモータ体格を大型化しなければならない。このため、1000Hz−1.0Tにおける渦流損は全鉄損の0.55以下とする。なお、ここで規定する渦流損とは、JIS C 2550−1に規定されている方法で測定された磁気特性に対して、いわゆる2周波法により計算したものとする。但し、モータコアが磁気的に閉じている形状であれば、1次巻線および2次巻線を施しリングコアとして測定した磁気特性を用いてもよく、いずれかの磁気特性が上記規定を満足すればよい。
Claims (3)
- 最大回転数より低い回転数での駆動時に鉄心の磁束密度を下げるモータ駆動制御を行うことが可能なモータであって、
前記モータのコア材料である鋼板が、
質量%で、C:0.010%以下、Si:2.0%以上7.0%以下、Al:2.0%以下、Mn:0.05%以上1.0%以下、S:0.005%以下、及びN:0.005%以下を含有し、残部はFe及び不可避的不純物の組成であり、
磁界変化ΔH=50A/mに対する磁束密度の変化ΔBが0.50T以上となる磁束密度変化領域を有し、且つ、板厚が0.05mm以上0.20mm以下の範囲内にあり、且つ、1000Hz−1.0Tにおける渦流損が全鉄損の0.55以下であること
を特徴とするモータ。 - 前記鋼板が、さらに、質量%で、P:0.01%以上0.1%以下、Sn:0.001%以上0.1%以下、Sb:0.001%以上0.1%以下、Mo:0.001%以上0.01%以下の中から選ばれる1種以上を含有することを特徴とする請求項1に記載のモータ。
- 前記磁束密度変化領域が、1T以上の磁束密度を含む領域に存在することを特徴とする請求項1又は2に記載のモータ。
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018092718A JP6878351B2 (ja) | 2018-05-14 | 2018-05-14 | モータ |
| CA3100302A CA3100302C (en) | 2018-05-14 | 2019-03-20 | Motor |
| PCT/JP2019/011635 WO2019220770A1 (ja) | 2018-05-14 | 2019-03-20 | モータ |
| CN201980032398.8A CN112119173A (zh) | 2018-05-14 | 2019-03-20 | 马达 |
| EP19804557.7A EP3816312A4 (en) | 2018-05-14 | 2019-03-20 | MOTOR |
| KR1020207032541A KR102503899B1 (ko) | 2018-05-14 | 2019-03-20 | 모터 |
| US17/054,605 US11551839B2 (en) | 2018-05-14 | 2019-03-20 | Motor |
| MX2020012218A MX2020012218A (es) | 2018-05-14 | 2019-03-20 | Motor. |
| TW108114587A TWI699437B (zh) | 2018-05-14 | 2019-04-25 | 馬達 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018092718A JP6878351B2 (ja) | 2018-05-14 | 2018-05-14 | モータ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2019199624A JP2019199624A (ja) | 2019-11-21 |
| JP6878351B2 true JP6878351B2 (ja) | 2021-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2018092718A Active JP6878351B2 (ja) | 2018-05-14 | 2018-05-14 | モータ |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US11551839B2 (ja) |
| EP (1) | EP3816312A4 (ja) |
| JP (1) | JP6878351B2 (ja) |
| KR (1) | KR102503899B1 (ja) |
| CN (1) | CN112119173A (ja) |
| CA (1) | CA3100302C (ja) |
| MX (1) | MX2020012218A (ja) |
| TW (1) | TWI699437B (ja) |
| WO (1) | WO2019220770A1 (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114207158A (zh) * | 2019-07-31 | 2022-03-18 | 杰富意钢铁株式会社 | 无方向性电磁钢板及其制造方法 |
| WO2021205752A1 (ja) | 2020-04-06 | 2021-10-14 | Jfeスチール株式会社 | 電磁鋼板の加工方法、モータおよびモータコアの製造方法 |
| JP7718334B2 (ja) * | 2022-06-22 | 2025-08-05 | Jfeスチール株式会社 | ステータ及びモータ |
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| CA2175401C (en) | 1995-05-02 | 1999-08-31 | Toshiro Tomida | Magnetic steel sheet having excellent magnetic characteristics and blanking performance |
| JPH11199988A (ja) * | 1998-01-13 | 1999-07-27 | Nkk Corp | シリコンの濃度勾配を有するけい素鋼板 |
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| EP2832883A4 (en) * | 2012-03-30 | 2016-03-09 | Nisshin Steel Co Ltd | STEEL PLATE FOR ROTOR HEADS FOR IPM ENGINES AND METHOD FOR THE MANUFACTURE THEREOF |
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| CN106661686B (zh) * | 2014-07-02 | 2019-01-01 | 新日铁住金株式会社 | 无方向性电磁钢板及其制造方法 |
| JP2016180176A (ja) | 2015-03-24 | 2016-10-13 | 日新製鋼株式会社 | Ipmモータのロータ鉄心用鋼板、その製造方法、ipmモータのロータ鉄心及びipmモータ |
| JP2016194145A (ja) * | 2015-03-31 | 2016-11-17 | 日新製鋼株式会社 | Ipmモータのロータ鉄心用鋼板及びその製造方法 |
| JP6319522B2 (ja) | 2016-03-31 | 2018-05-09 | Jfeスチール株式会社 | 電磁鋼板およびその製造方法 |
| BR112018075826B1 (pt) * | 2016-08-05 | 2022-08-16 | Nippon Steel Corporation | Chapa de aço elétrica não orientada, método de fabricação de chapa de aço elétrica não orientada e método de fabricação de núcleo de motor |
| EP3533890B1 (en) | 2016-10-27 | 2021-12-22 | JFE Steel Corporation | Non-oriented electrical steel sheet and method for producing same |
| TWI635188B (zh) | 2017-09-08 | 2018-09-11 | 中國鋼鐵股份有限公司 | 無方向性電磁鋼片及其製造方法 |
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- 2019-03-20 EP EP19804557.7A patent/EP3816312A4/en active Pending
- 2019-03-20 KR KR1020207032541A patent/KR102503899B1/ko active Active
- 2019-03-20 CN CN201980032398.8A patent/CN112119173A/zh active Pending
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| CA3100302C (en) | 2022-04-12 |
| CA3100302A1 (en) | 2019-11-21 |
| JP2019199624A (ja) | 2019-11-21 |
| EP3816312A1 (en) | 2021-05-05 |
| TW201947040A (zh) | 2019-12-16 |
| KR20210003797A (ko) | 2021-01-12 |
| CN112119173A (zh) | 2020-12-22 |
| KR102503899B1 (ko) | 2023-02-24 |
| US20210125759A1 (en) | 2021-04-29 |
| EP3816312A4 (en) | 2022-01-26 |
| WO2019220770A1 (ja) | 2019-11-21 |
| TWI699437B (zh) | 2020-07-21 |
| US11551839B2 (en) | 2023-01-10 |
| MX2020012218A (es) | 2021-04-28 |
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