JP7386832B2 - 圧粉成形体、及び電磁部品 - Google Patents
圧粉成形体、及び電磁部品 Download PDFInfo
- Publication number
- JP7386832B2 JP7386832B2 JP2021142333A JP2021142333A JP7386832B2 JP 7386832 B2 JP7386832 B2 JP 7386832B2 JP 2021142333 A JP2021142333 A JP 2021142333A JP 2021142333 A JP2021142333 A JP 2021142333A JP 7386832 B2 JP7386832 B2 JP 7386832B2
- Authority
- JP
- Japan
- Prior art keywords
- volume
- iron
- less
- powder
- powder compact
- 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.)
- Active
Links
- 239000000843 powder Substances 0.000 title claims description 185
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 437
- 229910052742 iron Inorganic materials 0.000 claims description 177
- 230000005291 magnetic effect Effects 0.000 claims description 90
- 239000002245 particle Substances 0.000 claims description 78
- 239000011248 coating agent Substances 0.000 claims description 67
- 238000000576 coating method Methods 0.000 claims description 67
- 238000000465 moulding Methods 0.000 claims description 25
- 239000006249 magnetic particle Substances 0.000 claims description 14
- 230000004907 flux Effects 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 8
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 3
- 238000012935 Averaging Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 71
- 239000000523 sample Substances 0.000 description 64
- 239000012298 atmosphere Substances 0.000 description 48
- 229910052760 oxygen Inorganic materials 0.000 description 41
- 238000009413 insulation Methods 0.000 description 40
- 239000001301 oxygen Substances 0.000 description 40
- 239000000314 lubricant Substances 0.000 description 35
- 239000000047 product Substances 0.000 description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 33
- 239000000463 material Substances 0.000 description 33
- 238000010306 acid treatment Methods 0.000 description 32
- 238000004519 manufacturing process Methods 0.000 description 32
- 239000002994 raw material Substances 0.000 description 32
- 239000002253 acid Substances 0.000 description 26
- 239000011247 coating layer Substances 0.000 description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- 230000000694 effects Effects 0.000 description 17
- 229910052751 metal Inorganic materials 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- 238000000354 decomposition reaction Methods 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 239000006247 magnetic powder Substances 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 11
- 238000007254 oxidation reaction Methods 0.000 description 11
- 230000006378 damage Effects 0.000 description 10
- -1 etc. Chemical class 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 239000012299 nitrogen atmosphere Substances 0.000 description 9
- 238000004804 winding Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 7
- 230000000873 masking effect Effects 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 5
- 239000000470 constituent Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000003302 ferromagnetic material Substances 0.000 description 3
- 229910000398 iron phosphate Inorganic materials 0.000 description 3
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002505 iron Chemical class 0.000 description 2
- 235000013980 iron oxide Nutrition 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000013074 reference sample Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003685 thermal hair damage Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000007088 Archimedes method Methods 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- ORAWFNKFUWGRJG-UHFFFAOYSA-N Docosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCC(N)=O ORAWFNKFUWGRJG-UHFFFAOYSA-N 0.000 description 1
- 229910017082 Fe-Si Inorganic materials 0.000 description 1
- 229910017133 Fe—Si Inorganic materials 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 description 1
- 229940063655 aluminum stearate Drugs 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- HSEMFIZWXHQJAE-UHFFFAOYSA-N hexadecanamide Chemical compound CCCCCCCCCCCCCCCC(N)=O HSEMFIZWXHQJAE-UHFFFAOYSA-N 0.000 description 1
- CPSYWNLKRDURMG-UHFFFAOYSA-L hydron;manganese(2+);phosphate Chemical compound [Mn+2].OP([O-])([O-])=O CPSYWNLKRDURMG-UHFFFAOYSA-L 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229940037312 stearamide Drugs 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
- 150000003755 zirconium compounds Chemical class 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Landscapes
- Soft Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021142333A JP7386832B2 (ja) | 2020-10-05 | 2021-09-01 | 圧粉成形体、及び電磁部品 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020168472A JP6940674B2 (ja) | 2015-11-10 | 2020-10-05 | 圧粉成形体の製造方法 |
| JP2021142333A JP7386832B2 (ja) | 2020-10-05 | 2021-09-01 | 圧粉成形体、及び電磁部品 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020168472A Division JP6940674B2 (ja) | 2015-11-10 | 2020-10-05 | 圧粉成形体の製造方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2021185622A JP2021185622A (ja) | 2021-12-09 |
| JP2021185622A5 JP2021185622A5 (https=) | 2022-06-15 |
| JP7386832B2 true JP7386832B2 (ja) | 2023-11-27 |
Family
ID=78815805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021142333A Active JP7386832B2 (ja) | 2020-10-05 | 2021-09-01 | 圧粉成形体、及び電磁部品 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7386832B2 (https=) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010199328A (ja) | 2009-02-25 | 2010-09-09 | Toyota Motor Corp | 圧粉磁心の製造方法 |
| WO2012001943A1 (ja) | 2010-06-30 | 2012-01-05 | パナソニック株式会社 | 複合磁性体とその製造方法 |
| JP2012084803A (ja) | 2010-10-14 | 2012-04-26 | Kobe Steel Ltd | 圧粉磁心の製造方法およびこの製造方法によって得られる圧粉磁心 |
| JP2012199513A (ja) | 2011-03-04 | 2012-10-18 | Sumitomo Electric Ind Ltd | 圧粉成形体、圧粉成形体の製造方法、リアクトル、コンバータ、及び電力変換装置 |
| JP2013045991A (ja) | 2011-08-26 | 2013-03-04 | Hitachi Industrial Equipment Systems Co Ltd | 圧粉軟磁性体、その製造方法及びモータ |
-
2021
- 2021-09-01 JP JP2021142333A patent/JP7386832B2/ja active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010199328A (ja) | 2009-02-25 | 2010-09-09 | Toyota Motor Corp | 圧粉磁心の製造方法 |
| WO2012001943A1 (ja) | 2010-06-30 | 2012-01-05 | パナソニック株式会社 | 複合磁性体とその製造方法 |
| JP2012084803A (ja) | 2010-10-14 | 2012-04-26 | Kobe Steel Ltd | 圧粉磁心の製造方法およびこの製造方法によって得られる圧粉磁心 |
| JP2012199513A (ja) | 2011-03-04 | 2012-10-18 | Sumitomo Electric Ind Ltd | 圧粉成形体、圧粉成形体の製造方法、リアクトル、コンバータ、及び電力変換装置 |
| JP2013045991A (ja) | 2011-08-26 | 2013-03-04 | Hitachi Industrial Equipment Systems Co Ltd | 圧粉軟磁性体、その製造方法及びモータ |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021185622A (ja) | 2021-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2680281B1 (en) | Composite soft magnetic material having low magnetic strain and high magnetic flux density, method for producing same, and electromagnetic circuit component | |
| JP5050745B2 (ja) | リアクトル用コアとその製造方法およびリアクトル | |
| JP4707054B2 (ja) | 軟磁性材料、軟磁性材料の製造方法、圧粉磁心および圧粉磁心の製造方法 | |
| EP2750151B1 (en) | Compressed powder compact | |
| JP5027945B1 (ja) | 圧粉成形体、圧粉成形体の製造方法、リアクトル、コンバータ、及び電力変換装置 | |
| CN108140472B (zh) | 成形体、电磁部件以及成形体的制造方法 | |
| JP4535070B2 (ja) | 軟磁性材料ならびに圧粉磁心およびその製造方法 | |
| US20180025822A1 (en) | Soft magnetic metal dust core and reactor having thereof | |
| JP4325950B2 (ja) | 軟磁性材料および圧粉磁心 | |
| KR101639960B1 (ko) | 압분자심용 철분 및 압분자심의 제조 방법 | |
| JP5445801B2 (ja) | リアクトル、及び昇圧回路 | |
| CN110997187B (zh) | 压粉铁心的制造方法以及电磁部件的制造方法 | |
| JP6423629B2 (ja) | 圧粉磁心、及びコイル部品 | |
| JP7386832B2 (ja) | 圧粉成形体、及び電磁部品 | |
| JP7417830B2 (ja) | 複合磁性体の製造方法 | |
| JP6940674B2 (ja) | 圧粉成形体の製造方法 | |
| EP1675137A1 (en) | Process for producing soft magnetism material, soft magnetism material and powder magnetic core | |
| JP5845022B2 (ja) | 磁気回路部品 | |
| JP2021036577A (ja) | 圧粉磁芯 | |
| JP6174954B2 (ja) | 圧粉成形体の製造方法 | |
| JP2012199568A (ja) | 圧粉成形体、圧粉成形体の製造方法、リアクトル、コンバータ、及び電力変換装置 | |
| WO2019044467A1 (ja) | 圧粉磁心の製造方法、及び圧粉磁心用原料粉末 | |
| JP2012243912A (ja) | 圧粉成形体の製造方法、および圧粉成形体 | |
| JP2013016656A (ja) | 圧粉成形体の製造方法、および圧粉成形体 | |
| JP2005142522A (ja) | 軟磁性材料の製造方法、軟磁性材料および圧粉磁心 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20210927 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220607 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20221108 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230105 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20230508 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230803 |
|
| A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20230816 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230922 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231005 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20231025 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20231114 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 7386832 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |