JP2018170304A - 圧粉コア、該圧粉コアの製造方法、該圧粉コアを備える電気・電子部品、および該電気・電子部品が実装された電気・電子機器 - Google Patents
圧粉コア、該圧粉コアの製造方法、該圧粉コアを備える電気・電子部品、および該電気・電子部品が実装された電気・電子機器 Download PDFInfo
- Publication number
- JP2018170304A JP2018170304A JP2015171074A JP2015171074A JP2018170304A JP 2018170304 A JP2018170304 A JP 2018170304A JP 2015171074 A JP2015171074 A JP 2015171074A JP 2015171074 A JP2015171074 A JP 2015171074A JP 2018170304 A JP2018170304 A JP 2018170304A
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- Prior art keywords
- powder
- magnetic material
- dust core
- core
- mass
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- 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.)
- Pending
Links
- 239000000428 dust Substances 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims description 24
- 239000000843 powder Substances 0.000 claims abstract description 197
- 239000000696 magnetic material Substances 0.000 claims abstract description 123
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 82
- 230000005291 magnetic effect Effects 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims description 54
- 239000000463 material Substances 0.000 claims description 39
- 229910052742 iron Inorganic materials 0.000 claims description 33
- 239000011230 binding agent Substances 0.000 claims description 28
- 229910045601 alloy Inorganic materials 0.000 claims description 26
- 239000000956 alloy Substances 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 22
- 238000000465 moulding Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 7
- 229910008423 Si—B Inorganic materials 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 5
- 229910001339 C alloy Inorganic materials 0.000 claims description 4
- 229910017082 Fe-Si Inorganic materials 0.000 claims description 4
- 229910017133 Fe—Si Inorganic materials 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910017061 Fe Co Inorganic materials 0.000 claims description 3
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 3
- 229920006706 PC-C Polymers 0.000 claims description 3
- 229910008458 Si—Cr Inorganic materials 0.000 claims description 3
- 229910000756 V alloy Inorganic materials 0.000 claims description 3
- 229910002796 Si–Al Inorganic materials 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000006247 magnetic powder Substances 0.000 abstract description 25
- 238000010438 heat treatment Methods 0.000 description 24
- 230000035699 permeability Effects 0.000 description 21
- 239000002245 particle Substances 0.000 description 13
- 238000005259 measurement Methods 0.000 description 12
- 239000007921 spray Substances 0.000 description 12
- 230000007423 decrease Effects 0.000 description 10
- 239000002002 slurry Substances 0.000 description 10
- 229910000679 solder Inorganic materials 0.000 description 8
- 239000012298 atmosphere Substances 0.000 description 7
- 238000000748 compression moulding Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 239000000314 lubricant Substances 0.000 description 7
- 230000002829 reductive effect Effects 0.000 description 7
- 238000004804 winding Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- 230000001603 reducing effect Effects 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000012254 powdered material Substances 0.000 description 4
- 238000005979 thermal decomposition reaction Methods 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000009499 grossing Methods 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000002612 dispersion medium Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 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
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000009692 water atomization Methods 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/08—Metallic powder characterised by particles having an amorphous microstructure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- 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
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
-
- 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
- H01F1/20—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 in the form of particles, e.g. powder
-
- 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
- H01F1/20—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 in the form of particles, e.g. powder
- H01F1/22—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 in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/24—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 in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Dispersion Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Powder Metallurgy (AREA)
- Soft Magnetic Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015171074A JP2018170304A (ja) | 2015-08-31 | 2015-08-31 | 圧粉コア、該圧粉コアの製造方法、該圧粉コアを備える電気・電子部品、および該電気・電子部品が実装された電気・電子機器 |
| TW105120204A TW201712699A (zh) | 2015-08-31 | 2016-06-27 | 壓粉磁芯、該壓粉磁芯之製造方法、具備該壓粉磁芯之電氣．電子零件及安裝有該電氣．電子零件之電氣．電子機器 |
| PCT/JP2016/071488 WO2017038295A1 (fr) | 2015-08-31 | 2016-07-22 | Noyau à poudre de fer, procédé de fabrication dudit noyau à poudre de fer, composant électrique/électronique doté dudit noyau à poudre de fer, et dispositif électrique/électronique sur lequel est monté ledit composant électrique/électronique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015171074A JP2018170304A (ja) | 2015-08-31 | 2015-08-31 | 圧粉コア、該圧粉コアの製造方法、該圧粉コアを備える電気・電子部品、および該電気・電子部品が実装された電気・電子機器 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2018170304A true JP2018170304A (ja) | 2018-11-01 |
Family
ID=58187237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015171074A Pending JP2018170304A (ja) | 2015-08-31 | 2015-08-31 | 圧粉コア、該圧粉コアの製造方法、該圧粉コアを備える電気・電子部品、および該電気・電子部品が実装された電気・電子機器 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2018170304A (fr) |
| TW (1) | TW201712699A (fr) |
| WO (1) | WO2017038295A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021039967A (ja) * | 2019-08-30 | 2021-03-11 | 太陽誘電株式会社 | コイル部品及びその製造方法 |
| WO2023149454A1 (fr) * | 2022-02-07 | 2023-08-10 | パナソニックＩｐマネジメント株式会社 | Composition de résine magnétique, feuille magnétique et composant inducteur |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979740A (zh) * | 2018-12-24 | 2019-07-05 | 海安南京大学高新技术研究院 | 低损耗铁硅铝金属磁粉芯绝缘包覆方法 |
| CN111370214A (zh) * | 2019-11-20 | 2020-07-03 | 横店集团东磁股份有限公司 | 一种合金复合粉制备磁粉芯的方法 |
| CN113192716B (zh) * | 2021-04-29 | 2022-09-06 | 深圳顺络电子股份有限公司 | 软磁合金材料及软磁合金材料的制备方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004197218A (ja) * | 2002-11-22 | 2004-07-15 | Toko Inc | 複合磁性材料とそれを用いたコア及び磁性素子 |
| JP2005294458A (ja) * | 2004-03-31 | 2005-10-20 | Nec Tokin Corp | 高周波用複合磁性粉末材料および高周波用圧粉磁芯ならびに高周波用圧粉磁芯の製造方法 |
| JP5063861B2 (ja) * | 2005-02-23 | 2012-10-31 | 戸田工業株式会社 | 複合圧粉磁心及びその製造法 |
| JP2007134381A (ja) * | 2005-11-08 | 2007-05-31 | Nec Tokin Corp | 複合磁性材料、それを用いた圧粉磁心および磁性素子 |
| JP5288405B2 (ja) * | 2008-11-13 | 2013-09-11 | Ｎｅｃトーキン株式会社 | インダクタおよびインダクタの製造方法 |
-
2015
- 2015-08-31 JP JP2015171074A patent/JP2018170304A/ja active Pending
-
2016
- 2016-06-27 TW TW105120204A patent/TW201712699A/zh unknown
- 2016-07-22 WO PCT/JP2016/071488 patent/WO2017038295A1/fr active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021039967A (ja) * | 2019-08-30 | 2021-03-11 | 太陽誘電株式会社 | コイル部品及びその製造方法 |
| JP7374669B2 (ja) | 2019-08-30 | 2023-11-07 | 太陽誘電株式会社 | コイル部品及びその製造方法 |
| WO2023149454A1 (fr) * | 2022-02-07 | 2023-08-10 | パナソニックＩｐマネジメント株式会社 | Composition de résine magnétique, feuille magnétique et composant inducteur |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017038295A1 (fr) | 2017-03-09 |
| TW201712699A (zh) | 2017-04-01 |
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