DE10310572B4 - Permanentmagnet, Verfahren zu seiner Herstellung, Rotor und Motor - Google Patents
Permanentmagnet, Verfahren zu seiner Herstellung, Rotor und Motor Download PDFInfo
- Publication number
- DE10310572B4 DE10310572B4 DE10310572A DE10310572A DE10310572B4 DE 10310572 B4 DE10310572 B4 DE 10310572B4 DE 10310572 A DE10310572 A DE 10310572A DE 10310572 A DE10310572 A DE 10310572A DE 10310572 B4 DE10310572 B4 DE 10310572B4
- Authority
- DE
- Germany
- Prior art keywords
- permanent magnet
- hard magnetic
- magnetic material
- antiferromagnetic
- antiferromagnetic material
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 20
- 230000008569 process Effects 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title description 14
- 239000002885 antiferromagnetic material Substances 0.000 claims abstract description 108
- 239000000696 magnetic material Substances 0.000 claims abstract description 101
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 28
- 230000005291 magnetic effect Effects 0.000 claims description 65
- 239000000843 powder Substances 0.000 claims description 39
- 239000000203 mixture Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 11
- 229910052779 Neodymium Inorganic materials 0.000 claims description 11
- 239000011572 manganese Substances 0.000 claims description 11
- 239000012298 atmosphere Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229910000914 Mn alloy Inorganic materials 0.000 claims description 7
- 230000001788 irregular Effects 0.000 claims description 5
- 239000011812 mixed powder Substances 0.000 claims description 5
- 239000003302 ferromagnetic material Substances 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000005303 antiferromagnetism Effects 0.000 claims 1
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 97
- 229910003289 NiMn Inorganic materials 0.000 description 55
- 230000008878 coupling Effects 0.000 description 23
- 238000010168 coupling process Methods 0.000 description 23
- 238000005859 coupling reaction Methods 0.000 description 23
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 22
- 239000000463 material Substances 0.000 description 22
- 239000002245 particle Substances 0.000 description 16
- 230000004907 flux Effects 0.000 description 15
- 238000000465 moulding Methods 0.000 description 13
- 239000006247 magnetic powder Substances 0.000 description 12
- 239000013078 crystal Substances 0.000 description 11
- 230000005347 demagnetization Effects 0.000 description 11
- 229910015136 FeMn Inorganic materials 0.000 description 9
- 230000005415 magnetization Effects 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 230000005290 antiferromagnetic effect Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 230000001629 suppression Effects 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 229910019041 PtMn Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- -1 IrMn Inorganic materials 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 238000009689 gas atomisation Methods 0.000 description 2
- 150000002505 iron Chemical class 0.000 description 2
- 238000009766 low-temperature sintering Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 150000002910 rare earth metals Chemical group 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RZJQYRCNDBMIAG-UHFFFAOYSA-N [Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Zn].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn] Chemical class [Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Zn].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn] RZJQYRCNDBMIAG-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005551 mechanical alloying Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- H01F1/0009—Antiferromagnetic materials, i.e. materials exhibiting a Néel transition temperature
-
- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/06—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/08—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/086—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together sintered
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0273—Imparting anisotropy
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002241295A JP4422953B2 (ja) | 2002-08-22 | 2002-08-22 | 永久磁石の製造方法 |
| JP2002/241295 | 2002-08-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE10310572A1 DE10310572A1 (de) | 2004-03-11 |
| DE10310572B4 true DE10310572B4 (de) | 2008-04-10 |
Family
ID=31712229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10310572A Expired - Fee Related DE10310572B4 (de) | 2002-08-22 | 2003-03-11 | Permanentmagnet, Verfahren zu seiner Herstellung, Rotor und Motor |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US7064642B2 (enExample) |
| JP (1) | JP4422953B2 (enExample) |
| CN (2) | CN100346427C (enExample) |
| DE (1) | DE10310572B4 (enExample) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4422953B2 (ja) * | 2002-08-22 | 2010-03-03 | 株式会社日立製作所 | 永久磁石の製造方法 |
| US7365623B2 (en) * | 2005-06-10 | 2008-04-29 | Beijing Taijie Yanyuan Medical Engineering Technical Co., Ltd. | Permanent magnet, magnetic device for use in MRI including the same, and manufacturing processes thereof |
| WO2009016815A1 (ja) | 2007-07-27 | 2009-02-05 | Hitachi Metals, Ltd. | Ｒ－Ｆｅ－Ｂ系希土類焼結磁石 |
| US20100253169A1 (en) * | 2009-04-01 | 2010-10-07 | General Electric Company | Electric machine |
| US8222787B2 (en) * | 2009-04-01 | 2012-07-17 | General Electric Company | Electric machine |
| JP5186036B2 (ja) * | 2011-03-31 | 2013-04-17 | 日新製鋼株式会社 | Ｉｐｍモータの回転子及びそれを用いたｉｐｍモータ |
| KR101189107B1 (ko) * | 2011-04-01 | 2012-10-10 | 조선대학교산학협력단 | Ｂｌｄｃ 모터의 로터 |
| JP6115057B2 (ja) * | 2012-09-18 | 2017-04-19 | Tdk株式会社 | コイル部品 |
| KR101405802B1 (ko) * | 2012-12-12 | 2014-06-12 | 현대자동차주식회사 | 온도분포를 고려한 구동모터의 회전자 영구자석 장치 |
| JP6255977B2 (ja) * | 2013-03-28 | 2018-01-10 | Tdk株式会社 | 希土類磁石 |
| JP6446817B2 (ja) * | 2014-04-11 | 2019-01-09 | 株式会社Ihi | ナノコンポジット磁石の製造方法 |
| EP3366554B1 (de) | 2017-02-25 | 2019-10-16 | Urs Gretsch | Aufhängevorrichtung für transportgeräte |
| JP6841130B2 (ja) * | 2017-03-30 | 2021-03-10 | Tdk株式会社 | モータ |
| JP6714652B2 (ja) * | 2018-07-30 | 2020-06-24 | 本田技研工業株式会社 | 回転電機及び回転電機を備える車両 |
| CN110714997B (zh) * | 2019-09-20 | 2020-12-11 | 东南大学 | 一种集成磁流体刹车的轮电机驱动器 |
| CN112564436A (zh) * | 2020-11-26 | 2021-03-26 | 浙江英洛华磁业有限公司 | 一种制造转子组件的方法 |
| CN112737241A (zh) * | 2020-12-18 | 2021-04-30 | 浙江英洛华磁业有限公司 | 一种制造转子组件的方法 |
| DE102022115198A1 (de) | 2022-06-17 | 2023-12-28 | Ford Global Technologies, Llc | Verfahren zum Herstellen eines Rotorelements für einen Rotor einer elektrischen Maschine, Rotorelement, Rotor, elektrische Maschine und Kraftfahrzeug |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1168240A (fr) * | 1955-12-22 | 1958-12-05 | Thomson Houston Comp Francaise | Nouveau matériau magnétique et sa préparation |
| WO2002013209A2 (en) * | 2000-08-03 | 2002-02-14 | Sanei Kasei Co., Limited | Nanocomposite permanent magnet |
| JP2002064009A (ja) * | 2000-08-22 | 2002-02-28 | Sumitomo Special Metals Co Ltd | 鉄基希土類合金磁石およびその製造方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3560200A (en) * | 1968-04-01 | 1971-02-02 | Bell Telephone Labor Inc | Permanent magnetic materials |
| JPS5599703A (en) * | 1979-01-26 | 1980-07-30 | Matsushita Electric Ind Co Ltd | Preparation of anisotropic resin magnet |
| JPS6163530A (ja) * | 1984-09-03 | 1986-04-01 | Toyo Kohan Co Ltd | 硬質磁性材料の製造法 |
| JPS61124553A (ja) * | 1984-11-19 | 1986-06-12 | Seiko Instr & Electronics Ltd | 永久磁石用合金 |
| DE69031250T2 (de) * | 1989-06-09 | 1997-12-04 | Matsushita Electric Ind Co Ltd | Magnetisches Material |
| FI930169A7 (fi) * | 1990-07-16 | 1993-01-15 | Aura Systems Inc | Magnetiskt material |
| JPH05315120A (ja) * | 1992-05-08 | 1993-11-26 | Seiko Epson Corp | 希土類焼結磁石およびその製造方法 |
| JPH05315119A (ja) * | 1992-05-08 | 1993-11-26 | Seiko Epson Corp | 希土類永久磁石およびその製造方法 |
| JPH07211566A (ja) * | 1994-01-17 | 1995-08-11 | Isuzu Motors Ltd | 異方性磁石の製造方法 |
| JP3598171B2 (ja) * | 1995-12-27 | 2004-12-08 | 株式会社Ｎｅｏｍａｘ | 交換スプリング磁石およびその製造方法 |
| JP2002358616A (ja) * | 2000-06-12 | 2002-12-13 | Toshiba Corp | 磁気記録媒体および磁気記録装置 |
| JP2002014407A (ja) * | 2000-06-29 | 2002-01-18 | Konica Corp | カメラの写し込み装置 |
| JP2002124407A (ja) | 2000-10-16 | 2002-04-26 | Hitachi Metals Ltd | 異方性希土類焼結磁石及びその製造方法 |
| US20030195633A1 (en) * | 2001-05-04 | 2003-10-16 | Hyde Edward R. | Magnetic array implant and prosthesis insert |
| JP2003016620A (ja) * | 2001-06-29 | 2003-01-17 | Toshiba Corp | 磁気記録媒体、磁気記録装置および磁気記録方法 |
| JP4422953B2 (ja) * | 2002-08-22 | 2010-03-03 | 株式会社日立製作所 | 永久磁石の製造方法 |
-
2002
- 2002-08-22 JP JP2002241295A patent/JP4422953B2/ja not_active Expired - Fee Related
-
2003
- 2003-02-26 CN CNB031066046A patent/CN100346427C/zh not_active Expired - Fee Related
- 2003-02-26 CN CN200710162491XA patent/CN101183594B/zh not_active Expired - Fee Related
- 2003-03-11 DE DE10310572A patent/DE10310572B4/de not_active Expired - Fee Related
- 2003-03-19 US US10/390,701 patent/US7064642B2/en not_active Expired - Fee Related
-
2006
- 2006-05-09 US US11/430,018 patent/US7399368B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1168240A (fr) * | 1955-12-22 | 1958-12-05 | Thomson Houston Comp Francaise | Nouveau matériau magnétique et sa préparation |
| WO2002013209A2 (en) * | 2000-08-03 | 2002-02-14 | Sanei Kasei Co., Limited | Nanocomposite permanent magnet |
| JP2002064009A (ja) * | 2000-08-22 | 2002-02-28 | Sumitomo Special Metals Co Ltd | 鉄基希土類合金磁石およびその製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| Phys.Rev. B65, 174420, 2002 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100346427C (zh) | 2007-10-31 |
| US7399368B2 (en) | 2008-07-15 |
| CN101183594B (zh) | 2012-07-11 |
| JP2004079922A (ja) | 2004-03-11 |
| US20040036566A1 (en) | 2004-02-26 |
| US7064642B2 (en) | 2006-06-20 |
| CN1477654A (zh) | 2004-02-25 |
| US20060238282A1 (en) | 2006-10-26 |
| CN101183594A (zh) | 2008-05-21 |
| DE10310572A1 (de) | 2004-03-11 |
| JP4422953B2 (ja) | 2010-03-03 |
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