CN1954395A - R-Fe-B系薄膜磁铁及其制造方法 - Google Patents
R-Fe-B系薄膜磁铁及其制造方法 Download PDFInfo
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- CN1954395A CN1954395A CN200580008928.3A CN200580008928A CN1954395A CN 1954395 A CN1954395 A CN 1954395A CN 200580008928 A CN200580008928 A CN 200580008928A CN 1954395 A CN1954395 A CN 1954395A
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- 239000010409 thin film Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title description 3
- 239000013078 crystal Substances 0.000 claims abstract description 95
- 239000010408 film Substances 0.000 claims abstract description 66
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 31
- 239000000956 alloy Substances 0.000 claims abstract description 31
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 9
- 229910052747 lanthanoid Inorganic materials 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000008021 deposition Effects 0.000 claims description 4
- 238000005137 deposition process Methods 0.000 claims description 2
- 150000002602 lanthanoids Chemical class 0.000 claims description 2
- 230000005415 magnetization Effects 0.000 abstract description 30
- 239000002131 composite material Substances 0.000 abstract 1
- -1 rare earth lanthanide Chemical class 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 41
- 230000005291 magnetic effect Effects 0.000 description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 29
- 229910001172 neodymium magnet Inorganic materials 0.000 description 23
- 239000000758 substrate Substances 0.000 description 22
- 239000002245 particle Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 230000005381 magnetic domain Effects 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 210000001519 tissue Anatomy 0.000 description 8
- 230000005347 demagnetization Effects 0.000 description 6
- 238000000151 deposition Methods 0.000 description 6
- 229910052779 Neodymium Inorganic materials 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 210000000713 mesentery Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052692 Dysprosium Inorganic materials 0.000 description 2
- 229910052777 Praseodymium Inorganic materials 0.000 description 2
- 229910052771 Terbium Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 2
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- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004453 electron probe microanalysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- H01F41/14—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 applying magnetic films to substrates
- H01F41/22—Heat treatment; Thermal decomposition; Chemical vapour deposition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
- H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
- H01F10/126—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing rare earth metals
-
- 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
- H01F41/0293—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 diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
-
- 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
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/32—Composite [nonstructural laminate] of inorganic material having metal-compound-containing layer and having defined magnetic layer
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/32—Composite [nonstructural laminate] of inorganic material having metal-compound-containing layer and having defined magnetic layer
- Y10T428/325—Magnetic layer next to second metal compound-containing layer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thin Magnetic Films (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
Nd组成(质量%) | 热处理温度(℃) | |
比较例试样(1) | 25.7 | 850 |
本发明试样(1) | 29.4 | 850 |
本发明试样(2) | 34.5 | 850 |
本发明试样(3) | 39.2 | 850 |
本发明试样(4) | 44.1 | 850 |
比较例试样(2) | 47.8 | 850 |
比较例试样(3) | 25.7 | 600 |
比较例试样(4) | 29.4 | 600 |
比较例试样(5) | 34.5 | 600 |
比较例试样(6) | 39.2 | 600 |
比较例试样(7) | 44.1 | 600 |
比较例试样(8) | 47.8 | 600 |
试样名 | 热处理温度(℃) | 晶粒直径(μm) | Br/1.2(T) | Hcj/1.2(MA/m) |
比较例试样(9) | 600 | 0.2 | 0.58 | 1.18 |
本发明试样(5) | 700 | 0.7 | 0.83 | 1.22 |
本发明试样(6) | 800 | 3.1 | 1.03 | 1.15 |
本发明试样(7) | 900 | 9.2 | 1.18 | 1.12 |
本发明试样(8) | 1000 | 18 | 1.19 | 0.93 |
本发明试样(9) | 1200 | 28 | 1.16 | 0.74 |
比较例试样(10) | 1250 | 35 | 0.87 | 0.38 |
Claims (4)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP085806/2004 | 2004-03-23 | ||
JP2004085806 | 2004-03-23 | ||
PCT/JP2005/005183 WO2005091315A1 (ja) | 2004-03-23 | 2005-03-23 | R−Fe−B系薄膜磁石及びその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1954395A true CN1954395A (zh) | 2007-04-25 |
CN1954395B CN1954395B (zh) | 2010-05-26 |
Family
ID=34993954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200580008928.3A Expired - Fee Related CN1954395B (zh) | 2004-03-23 | 2005-03-23 | R-Fe-B系薄膜磁铁及其制造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7790300B2 (zh) |
JP (1) | JP4698581B2 (zh) |
CN (1) | CN1954395B (zh) |
WO (1) | WO2005091315A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104124019A (zh) * | 2013-04-25 | 2014-10-29 | Tdk株式会社 | R-t-b系永久磁铁 |
CN104124017A (zh) * | 2013-04-25 | 2014-10-29 | Tdk株式会社 | R-t-b系永久磁铁 |
CN104167831A (zh) * | 2013-05-16 | 2014-11-26 | 纳普拉有限公司 | 电能和机械能转换装置及使用该装置的产业机械 |
US9774219B2 (en) | 2009-08-06 | 2017-09-26 | Kabushiki Kaisha Toshiba | Permanent magnet, motor and electric generator |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4988713B2 (ja) * | 2006-03-20 | 2012-08-01 | 並木精密宝石株式会社 | 薄膜希土類磁石及びその製造方法 |
JP4830024B2 (ja) * | 2007-11-02 | 2011-12-07 | 旭化成株式会社 | 磁石用複合磁性材料、及びその製造方法 |
US9354285B2 (en) | 2012-01-26 | 2016-05-31 | Tdk Corporation | Magnetic measurement device |
CN105026607B (zh) | 2013-01-28 | 2017-05-31 | 吉坤日矿日石金属株式会社 | 稀土磁铁用溅射靶及其制造方法 |
WO2016067949A1 (ja) * | 2014-10-27 | 2016-05-06 | Jx金属株式会社 | 希土類薄膜磁石及びその製造方法 |
WO2017154653A1 (ja) | 2016-03-07 | 2017-09-14 | Jx金属株式会社 | 希土類薄膜磁石及びその製造方法 |
JP6208405B1 (ja) * | 2016-04-15 | 2017-10-04 | Jx金属株式会社 | 希土類薄膜磁石及びその製造方法 |
WO2017179422A1 (ja) | 2016-04-15 | 2017-10-19 | Jx金属株式会社 | 希土類薄膜磁石及びその製造方法 |
US11837392B2 (en) * | 2020-12-22 | 2023-12-05 | Tdk Corporation | R-T-B based permanent magnet |
JP7518754B2 (ja) * | 2020-12-22 | 2024-07-18 | Tdk株式会社 | R‐t‐b系永久磁石 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5194098A (en) * | 1982-08-21 | 1993-03-16 | Sumitomo Special Metals Co., Ltd. | Magnetic materials |
CN1042025A (zh) * | 1988-10-17 | 1990-05-09 | 三井石油化学工业株式会社 | 非晶态合金薄膜 |
JPH07201623A (ja) * | 1993-12-27 | 1995-08-04 | Tdk Corp | 焼結磁石およびその製造方法 |
JPH07272929A (ja) * | 1994-03-29 | 1995-10-20 | Kobe Steel Ltd | 希土類元素−Fe−B系薄膜永久磁石 |
JP3405806B2 (ja) * | 1994-04-05 | 2003-05-12 | ティーディーケイ株式会社 | 磁石およびその製造方法 |
JP2957421B2 (ja) | 1994-09-09 | 1999-10-04 | 三菱電機株式会社 | 薄膜磁石およびその製造方法ならびに円筒形強磁性薄膜 |
JPH0945567A (ja) * | 1995-07-27 | 1997-02-14 | Hitachi Metals Ltd | 希土類−鉄−ボロン系永久磁石の製造方法 |
JPH11273920A (ja) * | 1998-03-23 | 1999-10-08 | Sumitomo Special Metals Co Ltd | R−tm−b系永久磁石 |
JPH11288812A (ja) | 1998-04-01 | 1999-10-19 | Sumitomo Special Metals Co Ltd | 高保磁力R−Fe−B系薄膜磁石及びその製造方法 |
KR100592471B1 (ko) * | 1998-10-14 | 2006-06-23 | 히다찌긴조꾸가부시끼가이사 | 알-티-비계 소결형 영구자석 |
JP2001217124A (ja) | 2000-02-03 | 2001-08-10 | Sumitomo Special Metals Co Ltd | R‐Fe‐B系垂直磁気異方性薄膜磁石及びその製造方法 |
JP2001274016A (ja) | 2000-03-24 | 2001-10-05 | Mitsubishi Electric Corp | 希土類合金膜磁石 |
WO2002015206A1 (fr) * | 2000-08-02 | 2002-02-21 | Sumitomo Special Metals Co., Ltd. | Aimant permanent en terre rare et son procede de fabrication |
JP2002164238A (ja) * | 2000-09-14 | 2002-06-07 | Hitachi Metals Ltd | 希土類焼結磁石の製造方法およびリング磁石 |
EP1239307A1 (en) * | 2001-03-09 | 2002-09-11 | Sicpa Holding S.A. | Magnetic thin film interference device |
JP4161169B2 (ja) * | 2001-06-14 | 2008-10-08 | 信越化学工業株式会社 | 耐食性希土類磁石の製造方法 |
JP4162884B2 (ja) * | 2001-11-20 | 2008-10-08 | 信越化学工業株式会社 | 耐食性希土類磁石 |
JP2004120892A (ja) * | 2002-09-26 | 2004-04-15 | Hitachi Ltd | リング磁石とその製造法及びそれを用いた回転子並びにモータ |
JP3997413B2 (ja) * | 2002-11-14 | 2007-10-24 | 信越化学工業株式会社 | R−Fe−B系焼結磁石及びその製造方法 |
-
2005
- 2005-03-23 WO PCT/JP2005/005183 patent/WO2005091315A1/ja active Application Filing
- 2005-03-23 JP JP2006511292A patent/JP4698581B2/ja not_active Expired - Fee Related
- 2005-03-23 US US10/593,624 patent/US7790300B2/en not_active Expired - Fee Related
- 2005-03-23 CN CN200580008928.3A patent/CN1954395B/zh not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9774219B2 (en) | 2009-08-06 | 2017-09-26 | Kabushiki Kaisha Toshiba | Permanent magnet, motor and electric generator |
CN104124019A (zh) * | 2013-04-25 | 2014-10-29 | Tdk株式会社 | R-t-b系永久磁铁 |
CN104124017A (zh) * | 2013-04-25 | 2014-10-29 | Tdk株式会社 | R-t-b系永久磁铁 |
CN104124017B (zh) * | 2013-04-25 | 2015-10-28 | Tdk株式会社 | R-t-b系永久磁铁 |
CN104124019B (zh) * | 2013-04-25 | 2015-10-28 | Tdk株式会社 | R-t-b系永久磁铁 |
CN104167831A (zh) * | 2013-05-16 | 2014-11-26 | 纳普拉有限公司 | 电能和机械能转换装置及使用该装置的产业机械 |
CN104167831B (zh) * | 2013-05-16 | 2019-03-08 | 纳普拉有限公司 | 电能和机械能转换装置及使用该装置的产业机械 |
Also Published As
Publication number | Publication date |
---|---|
JP4698581B2 (ja) | 2011-06-08 |
US20070199623A1 (en) | 2007-08-30 |
JPWO2005091315A1 (ja) | 2008-05-22 |
WO2005091315A1 (ja) | 2005-09-29 |
US7790300B2 (en) | 2010-09-07 |
CN1954395B (zh) | 2010-05-26 |
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