JP7375469B2 - 絶縁体被覆磁性合金粉末粒子、圧粉磁心、およびコイル部品 - Google Patents
絶縁体被覆磁性合金粉末粒子、圧粉磁心、およびコイル部品 Download PDFInfo
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- JP7375469B2 JP7375469B2 JP2019197241A JP2019197241A JP7375469B2 JP 7375469 B2 JP7375469 B2 JP 7375469B2 JP 2019197241 A JP2019197241 A JP 2019197241A JP 2019197241 A JP2019197241 A JP 2019197241A JP 7375469 B2 JP7375469 B2 JP 7375469B2
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- magnetic alloy
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- 239000004984 smart glass 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
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- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
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- 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
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- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
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- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
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- 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
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- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
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- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
-
- 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
- H01F1/26—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 by macromolecular organic substances
-
- 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
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
Description
Xc=1/2πfC ・・・(1)
C=Sk/d ・・・(2)
上記式(1),(2)から、容量性リアクタンスXcを大きくするためには、キャパシタンスCを小さくする。キャパシタンスCを小さくするには、面積Sもしくは、誘電率kを小さくするか、絶縁処理膜の膜厚dを大きくする。
る絶縁体と、を含み、前記絶縁体は、前記突起に内包される粒子状の第1絶縁体と、前記
第1絶縁体の表面の少なくとも一部を被覆する膜状の第2絶縁体と、を含み、前記第1絶
縁体の平均粒子径は、4nm以上40nm以下であり、前記第1絶縁体は、前記磁性合金
粉末粒子の表面積43nm 2 乃至10000nm 2 あたりに1個存在することを特徴とする
。
は前記第2絶縁体で囲まれた空隙を含むことを特徴とする。
第1実施形態に係る絶縁体被覆磁性合金粉末粒子の構成について説明する。図1は、絶縁体被覆磁性合金粉末粒子の一粒子を示す模式断面図である。
図1に示すように、本実施形態の絶縁体被覆磁性合金粉末粒子1は、磁性合金粉末粒子2と絶縁体7とを含む。絶縁体7は、磁性合金粉末粒子2の表面を被覆し、複数の突起5を表面に有している。なお、以降の説明において、絶縁体被覆磁性合金粉末粒子1を単に絶縁体被覆粒子1ということもある。
磁性合金粉末粒子2は、軟磁性材料を含む粒子である。磁性合金粉末粒子2に含まれる軟磁性材料としては、例えば、純鉄、ケイ素鋼のようなFe-Si系合金、パーマロイのようなFe-Ni系合金、パーメンジュールのようなFe-Co系合金、センダストのようなFe-Si-Al系合金、Fe-Cr-Si系合金、およびFe-Cr-Al系合金などの各種Fe系合金、各種Ni系合金、各種Co系合金などが挙げられる。これらのうち、透磁率、磁束密度などの磁気特性、およびコストなどの生産性の観点から、各種Fe系合金を用いることが好ましい。
絶縁体7は、粒子状の第1絶縁体3と、膜状の第2絶縁体4とを含む。第1絶縁体3は、複数の突起5のそれぞれに内包される。第2絶縁体4は、第1絶縁体3の表面の少なくとも一部と、磁性合金粉末粒子2の表面の一部とを被覆している。詳しくは、第2絶縁体4は、第1絶縁体3および磁性合金粉末粒子2の表面のうち、第1絶縁体3と磁性合金粉末粒子2とが接している領域以外のそれぞれの表面を被覆している。
磁性合金粉末粒子2の表面には、複数の第1絶縁体3が接している。第1絶縁体3は、粒子状であって磁性合金粉末粒子2よりも小さい。第1絶縁体3は、磁性合金粉末粒子2の表面積43nm2乃至10000nm2あたりに1個存在することが好ましく、上記表面積97nm2乃至625nm2あたりに1個存在することがより好ましい。
第2絶縁体4は、膜状であって、磁性合金粉末粒子2および第1絶縁体3を被覆している。つまり、第1絶縁体3および第2絶縁体4を含む絶縁体7は、磁性合金粉末粒子2が絶縁体被覆粒子1の表面に露出しないように、磁性合金粉末粒子2の表面を被覆している。そのため、第1絶縁体3の一部は、第2絶縁体4で被覆されずに絶縁体被覆粒子1の表面に露出していてもよい。
絶縁体被覆粒子1は、インダクターやトロイダルコイルなどのコイル部品に備わる圧粉磁心に好適に用いられる。また、絶縁体被覆粒子1は、アンテナ、電磁波吸収体などのコイル部品以外の磁性素子にも用いられる。そのため、圧粉磁心はこれらの用途に合わせて所望の形状に成形される。
絶縁体被覆粒子1の製造方法について説明する。図3は、絶縁体被覆磁性合金粉末粒子の製造方法を示す工程フロー図である。図4は、絶縁体被覆磁性合金粉末粒子の製造方法の一例を示す模式図である。
2.1.絶縁体被覆磁性合金粉末粒子
第2実施形態に係る絶縁体被覆磁性合金粉末粒子の構成について説明する。図5は、第2実施形態に係る絶縁体被覆磁性合金粉末粒子の一粒子を示す模式断面図である。なお、本実施形態の絶縁体被覆磁性合金粉末粒子は、第1実施形態の絶縁体被覆粒子1に対して、絶縁体の構成を異ならせたものである。そのため、第1実施形態と同一の構成部位については、同一の符号を使用し、重複する説明は省略する。
絶縁体107は、膜状の第3絶縁体6と、粒子状の第1絶縁体3と、膜状の第2絶縁体4とを含む。すなわち、絶縁体被覆粒子101は、第1実施形態の絶縁体に対して、第3絶縁体6を含む点が異なっている。
第3絶縁体6は、膜状であって、磁性合金粉末粒子2を被覆している。つまり、第3絶縁体6、第1絶縁体3および第2絶縁体4を含む絶縁体107は、磁性合金粉末粒子2が絶縁体被覆粒子101の表面に露出しないように、磁性合金粉末粒子2の表面を被覆している。そのため、第1絶縁体3の一部は、第2絶縁体4で被覆されずに絶縁体被覆粒子101の表面に露出していてもよい。
第3実施形態に係るコイル部品としてトロイダルコイルを例示する。図6は、第3実施形態に係るコイル部品としてのトロイダルコイルの外観図である。
第4実施形態に係るコイル部品としてインダクターを例示する。図7は、第4実施形態に係るコイル部品としてのインダクターの透過斜視図である。
上記実施形態の圧粉磁心100を用いたコイル部品は、各種電子機器に適用が可能である。各種電子機器としては、例えば、ノート型やラップトップ型のパーソナルコンピューター、携帯電話機、デジタルスチールカメラ、スマートフォン、タブレット端末、スマートウォッチを含む時計、スマートグラス、HMD(ヘッドマウントディスプレイ)などのウェアラブル端末、テレビ、ビデオカメラ、ビデオテープレコーダー、カーナビゲーションシステム、ページャー、通信機能を備えた電子手帳、電子辞書、電卓、電子ゲーム機器、ワードプロセッサー、ワークステーション、テレビ電話、防犯用テレビモニター、電子双眼鏡、POS(Point Of Sale)システム端末、電子体温計、血圧計、血糖計、心電図計測装置、超音波診断装置、電子内視鏡などの医療機器、魚群探知機、各種測定機器、車両、航空機、船舶などに搭載される計器類、携帯端末用の基地局、フライトシミュレーターなどが挙げられる。これらの電子機器に上記実施形態のコイル部品を用いることによって、性能が向上すると共に、小型化および高周波対応が容易となる。
Claims (6)
- 磁性合金粉末粒子と、
前記磁性合金粉末粒子の表面を被覆し、複数の突起を表面に有する絶縁体と、
を含み、
前記絶縁体は、
前記突起に内包される粒子状の第1絶縁体と、
前記第1絶縁体の表面の少なくとも一部を被覆する膜状の第2絶縁体と、
を含み、
前記第1絶縁体の平均粒子径は、4nm以上40nm以下であり、前記第1絶縁体は、
前記磁性合金粉末粒子の表面積43nm 2 乃至10000nm 2 あたりに1個存在すること
を特徴とする絶縁体被覆磁性合金粉末粒子。 - 前記第2絶縁体の膜厚は、2nm以上20nm以下であることを特徴とする、請求項1
に記載の絶縁体被覆磁性合金粉末粒子。 - 前記第2絶縁体の体積抵抗率は、1×1014Ω・cm以上1×1017Ω・cm以下であ
ることを特徴とする、請求項1または請求項2に記載の絶縁体被覆磁性合金粉末粒子。 - 前記第1絶縁体の比誘電率は、2以上4以下であることを特徴とする、請求項1から請
求項3のいずれか1項に記載の絶縁体被覆磁性合金粉末粒子。 - 請求項1から請求項4のいずれか1項に記載の絶縁体被覆磁性合金粉末粒子が圧粉され
て成る圧粉磁心であって、
前記第1絶縁体または前記第2絶縁体で囲まれた空隙を含むことを特徴とする圧粉磁心
。 - 請求項5に記載の圧粉磁心を備えることを特徴とするコイル部品。
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Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001006938A (ja) | 1999-06-17 | 2001-01-12 | Kyocera Corp | インダクター用コア |
JP2006005173A (ja) | 2004-06-17 | 2006-01-05 | Toyota Central Res & Dev Lab Inc | 絶縁被膜、磁心用粉末および圧粉磁心並びにそれらの製造方法 |
JP2006228824A (ja) | 2005-02-15 | 2006-08-31 | Tokyo Coil Engineering Kk | インダクタ及びその製造方法 |
JP2008041961A (ja) | 2006-08-07 | 2008-02-21 | Toshiba Corp | 絶縁性磁性金属粒子および絶縁性磁性材料の製造方法 |
WO2008133172A1 (ja) | 2007-04-17 | 2008-11-06 | Hitachi High-Technologies Corporation | 樹脂混合用複合フィラー |
JP2009010180A (ja) | 2007-06-28 | 2009-01-15 | Kobe Steel Ltd | 軟磁性粉体、軟磁性成形体およびそれらの製造方法 |
JP2009099732A (ja) | 2007-10-16 | 2009-05-07 | Fuji Electric Device Technology Co Ltd | 絶縁酸化被膜付き軟磁性金属粒子 |
JP2011146604A (ja) | 2010-01-15 | 2011-07-28 | Toyota Motor Corp | 圧粉磁心用粉末、圧粉磁心用粉末を圧粉成形した圧粉磁心、及び、圧粉磁心用粉末の製造方法 |
JP2013033924A (ja) | 2011-07-05 | 2013-02-14 | Kobe Steel Ltd | インバータ用筐体およびインバータ装置 |
JP2013222827A (ja) | 2012-04-17 | 2013-10-28 | Panasonic Corp | 複合磁性体とそれを用いたコイル埋設型磁性素子およびその製造方法 |
JP2014103266A (ja) | 2012-11-20 | 2014-06-05 | Seiko Epson Corp | 複合粒子、複合粒子の製造方法、圧粉磁心、磁性素子および携帯型電子機器 |
WO2015019576A1 (ja) | 2013-08-07 | 2015-02-12 | パナソニックIpマネジメント株式会社 | 複合磁性材料とこれを用いたコイル部品ならびに電源装置 |
JP2018152557A (ja) | 2017-03-09 | 2018-09-27 | Tdk株式会社 | 圧粉磁心 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3737617B2 (ja) | 1997-10-30 | 2006-01-18 | 日鉄鉱業株式会社 | 膜被覆粉体の製造方法 |
JP4650073B2 (ja) * | 2005-04-15 | 2011-03-16 | 住友電気工業株式会社 | 軟磁性材料の製造方法、軟磁性材料および圧粉磁心 |
JP2008169439A (ja) * | 2007-01-12 | 2008-07-24 | Toyota Motor Corp | 磁性粉末、圧粉磁心、電動機およびリアクトル |
WO2009028486A1 (ja) * | 2007-08-30 | 2009-03-05 | Sumitomo Electric Industries, Ltd. | 軟磁性材料、圧粉磁心、軟磁性材料の製造方法および圧粉磁心の製造方法 |
JP4906972B1 (ja) | 2011-04-27 | 2012-03-28 | 太陽誘電株式会社 | 磁性材料およびそれを用いたコイル部品 |
JP2012238841A (ja) | 2011-04-27 | 2012-12-06 | Taiyo Yuden Co Ltd | 磁性材料及びコイル部品 |
JP2012238840A (ja) | 2011-04-27 | 2012-12-06 | Taiyo Yuden Co Ltd | 積層インダクタ |
JP6131577B2 (ja) * | 2012-11-20 | 2017-05-24 | セイコーエプソン株式会社 | 複合粒子、圧粉磁心、磁性素子および携帯型電子機器 |
JP6898057B2 (ja) * | 2015-07-31 | 2021-07-07 | 株式会社トーキン | 圧粉磁心 |
JP7124342B2 (ja) * | 2018-02-28 | 2022-08-24 | セイコーエプソン株式会社 | 絶縁物被覆軟磁性粉末、絶縁物被覆軟磁性粉末の製造方法、圧粉磁心、磁性素子、電子機器および移動体 |
-
2019
- 2019-10-30 JP JP2019197241A patent/JP7375469B2/ja active Active
-
2020
- 2020-10-27 CN CN202011164657.3A patent/CN112750588B/zh active Active
- 2020-10-28 US US17/082,372 patent/US11948730B2/en active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001006938A (ja) | 1999-06-17 | 2001-01-12 | Kyocera Corp | インダクター用コア |
JP2006005173A (ja) | 2004-06-17 | 2006-01-05 | Toyota Central Res & Dev Lab Inc | 絶縁被膜、磁心用粉末および圧粉磁心並びにそれらの製造方法 |
JP2006228824A (ja) | 2005-02-15 | 2006-08-31 | Tokyo Coil Engineering Kk | インダクタ及びその製造方法 |
JP2008041961A (ja) | 2006-08-07 | 2008-02-21 | Toshiba Corp | 絶縁性磁性金属粒子および絶縁性磁性材料の製造方法 |
WO2008133172A1 (ja) | 2007-04-17 | 2008-11-06 | Hitachi High-Technologies Corporation | 樹脂混合用複合フィラー |
JP2009010180A (ja) | 2007-06-28 | 2009-01-15 | Kobe Steel Ltd | 軟磁性粉体、軟磁性成形体およびそれらの製造方法 |
JP2009099732A (ja) | 2007-10-16 | 2009-05-07 | Fuji Electric Device Technology Co Ltd | 絶縁酸化被膜付き軟磁性金属粒子 |
JP2011146604A (ja) | 2010-01-15 | 2011-07-28 | Toyota Motor Corp | 圧粉磁心用粉末、圧粉磁心用粉末を圧粉成形した圧粉磁心、及び、圧粉磁心用粉末の製造方法 |
JP2013033924A (ja) | 2011-07-05 | 2013-02-14 | Kobe Steel Ltd | インバータ用筐体およびインバータ装置 |
JP2013222827A (ja) | 2012-04-17 | 2013-10-28 | Panasonic Corp | 複合磁性体とそれを用いたコイル埋設型磁性素子およびその製造方法 |
JP2014103266A (ja) | 2012-11-20 | 2014-06-05 | Seiko Epson Corp | 複合粒子、複合粒子の製造方法、圧粉磁心、磁性素子および携帯型電子機器 |
WO2015019576A1 (ja) | 2013-08-07 | 2015-02-12 | パナソニックIpマネジメント株式会社 | 複合磁性材料とこれを用いたコイル部品ならびに電源装置 |
JP2018152557A (ja) | 2017-03-09 | 2018-09-27 | Tdk株式会社 | 圧粉磁心 |
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JP2021072336A (ja) | 2021-05-06 |
CN112750588B (zh) | 2023-12-26 |
US11948730B2 (en) | 2024-04-02 |
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