JP6930722B2 - 磁性材料、電子部品及び磁性材料の製造方法 - Google Patents

磁性材料、電子部品及び磁性材料の製造方法 Download PDF

Info

Publication number
JP6930722B2
JP6930722B2 JP2017124346A JP2017124346A JP6930722B2 JP 6930722 B2 JP6930722 B2 JP 6930722B2 JP 2017124346 A JP2017124346 A JP 2017124346A JP 2017124346 A JP2017124346 A JP 2017124346A JP 6930722 B2 JP6930722 B2 JP 6930722B2
Authority
JP
Japan
Prior art keywords
oxide layer
metal particles
soft magnetic
magnetic material
magnetic metal
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
Application number
JP2017124346A
Other languages
English (en)
Japanese (ja)
Other versions
JP2019009307A5 (enExample
JP2019009307A (ja
Inventor
洋子 織茂
洋子 織茂
新宇 李
新宇 李
伸介 竹岡
伸介 竹岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiyo Yuden Co Ltd
Original Assignee
Taiyo Yuden Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taiyo Yuden Co Ltd filed Critical Taiyo Yuden Co Ltd
Priority to JP2017124346A priority Critical patent/JP6930722B2/ja
Priority to US16/009,018 priority patent/US11869692B2/en
Priority to KR1020180068640A priority patent/KR102053088B1/ko
Priority to CN201810667553.0A priority patent/CN109119222B/zh
Publication of JP2019009307A publication Critical patent/JP2019009307A/ja
Publication of JP2019009307A5 publication Critical patent/JP2019009307A5/ja
Application granted granted Critical
Publication of JP6930722B2 publication Critical patent/JP6930722B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H01F1/33—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 mixtures of metallic and non-metallic particles; metallic particles having oxide skin
    • 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
    • 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
    • B22F1/16—Metallic particles coated with a non-metal
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • 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
    • H01F1/34—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 non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • 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
    • H01F1/34—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 non-metallic substances, e.g. ferrites
    • H01F1/38—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 non-metallic substances, e.g. ferrites amorphous, e.g. amorphous oxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/08—Cores, Yokes, or armatures made from powder
    • 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
    • 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
    • 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
    • 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
    • B22F2207/00—Aspects of the compositions, gradients
    • B22F2207/01—Composition gradients
    • B22F2207/07—Particles with core-rim gradient
    • 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
    • B22F2301/00—Metallic composition of the powder or its coating
    • B22F2301/35—Iron
    • 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
    • B22F2302/00—Metal Compound, non-Metallic compound or non-metal composition of the powder or its coating
    • B22F2302/25—Oxide
    • B22F2302/256—Silicium oxide (SiO2)
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2202/00—Physical properties
    • C22C2202/02—Magnetic

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
JP2017124346A 2017-06-26 2017-06-26 磁性材料、電子部品及び磁性材料の製造方法 Active JP6930722B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2017124346A JP6930722B2 (ja) 2017-06-26 2017-06-26 磁性材料、電子部品及び磁性材料の製造方法
US16/009,018 US11869692B2 (en) 2017-06-26 2018-06-14 Magnetic material, electronic component, and method for manufacturing magnetic material
KR1020180068640A KR102053088B1 (ko) 2017-06-26 2018-06-15 자성 재료, 전자 부품 및 자성 재료의 제조 방법
CN201810667553.0A CN109119222B (zh) 2017-06-26 2018-06-26 磁性材料、电子部件和磁性材料的制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017124346A JP6930722B2 (ja) 2017-06-26 2017-06-26 磁性材料、電子部品及び磁性材料の製造方法

Publications (3)

Publication Number Publication Date
JP2019009307A JP2019009307A (ja) 2019-01-17
JP2019009307A5 JP2019009307A5 (enExample) 2020-07-27
JP6930722B2 true JP6930722B2 (ja) 2021-09-01

Family

ID=64692796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017124346A Active JP6930722B2 (ja) 2017-06-26 2017-06-26 磁性材料、電子部品及び磁性材料の製造方法

Country Status (4)

Country Link
US (1) US11869692B2 (enExample)
JP (1) JP6930722B2 (enExample)
KR (1) KR102053088B1 (enExample)
CN (1) CN109119222B (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017092225A (ja) * 2015-11-10 2017-05-25 住友電気工業株式会社 圧粉成形体、電磁部品、及び圧粉成形体の製造方法
US11270821B2 (en) * 2017-07-05 2022-03-08 Panasonic Intellectual Property Management Co., Ltd. Soft magnetic powder, method for producing same, and dust core using soft magnetic powder
JP6504287B1 (ja) * 2018-03-09 2019-04-24 Tdk株式会社 軟磁性金属粉末、圧粉磁心および磁性部品
JP6504288B1 (ja) * 2018-03-09 2019-04-24 Tdk株式会社 軟磁性金属粉末、圧粉磁心および磁性部品
CN111755197B (zh) * 2019-03-28 2023-09-26 Tdk株式会社 软磁性金属粉末和磁性部件
JP7359021B2 (ja) * 2019-03-28 2023-10-11 Tdk株式会社 軟磁性金属粉末および磁性部品
JP7400241B2 (ja) * 2019-07-25 2023-12-19 Tdk株式会社 複合磁性粉及びこれを用いた圧粉磁心
JP2021021097A (ja) * 2019-07-25 2021-02-18 Tdk株式会社 複合磁性粉及びこれを用いた圧粉磁心、並びに、複合磁性粉の製造方法
JP7465069B2 (ja) * 2019-08-30 2024-04-10 太陽誘電株式会社 コイル部品及びその製造方法
CN114938638A (zh) 2020-01-10 2022-08-23 巴斯夫欧洲公司 包含涂覆粒子的软磁粉末
JP7413786B2 (ja) * 2020-01-15 2024-01-16 セイコーエプソン株式会社 圧粉磁心の製造方法および圧粉磁心
JP7438783B2 (ja) * 2020-02-18 2024-02-27 太陽誘電株式会社 磁性基体、コイル部品、及び電子機器
US11742141B2 (en) 2020-03-27 2023-08-29 Murata Manufacturing Co., Ltd. Metal magnetic particle, inductor, method for manufacturing metal magnetic particle, and method for manufacturing metal magnetic core
JP7456233B2 (ja) 2020-03-27 2024-03-27 株式会社村田製作所 金属磁性粒子、インダクタ、金属磁性粒子の製造方法及び金属磁性体コアの製造方法
JP7456234B2 (ja) * 2020-03-27 2024-03-27 株式会社村田製作所 金属磁性粒子、インダクタ、金属磁性粒子の製造方法及び金属磁性体コアの製造方法
JP2022040815A (ja) * 2020-08-31 2022-03-11 太陽誘電株式会社 磁性体、磁性体を備えるコイル部品、及び磁性体の製造方法
JP2022139532A (ja) * 2021-03-12 2022-09-26 太陽誘電株式会社 磁性基体、コイル部品及び回路基板
CN113628824B (zh) * 2021-08-23 2022-05-27 北京航空航天大学 一种高强度陶瓷包覆的铁基复合软磁材料及其制备方法
CN119631149A (zh) 2022-08-31 2025-03-14 日本特殊陶业株式会社 压粉磁芯、合金颗粒、电子元件、电子设备、电动机和发电机
JP2024093911A (ja) * 2022-12-27 2024-07-09 Tdk株式会社 軟磁性金属粉末、圧粉磁心および電子部品

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8201678L (sv) * 1982-03-17 1983-09-18 Asea Ab Sett att framstella foremal av mjukmagnetiskt material
JP4560784B2 (ja) 2004-02-24 2010-10-13 日立金属株式会社 金属微粒子およびその製造方法ならびに磁気ビーズ
JP2007092120A (ja) 2005-09-28 2007-04-12 Sumitomo Electric Ind Ltd 軟磁性材料の製造方法、軟磁性材料、および圧粉磁心
JP4802182B2 (ja) * 2007-12-14 2011-10-26 Ｊｆｅスチール株式会社 圧粉磁心用鉄粉
CN101694800B (zh) * 2009-09-08 2012-01-04 清华大学 具有高频和大功率使用特性的复合软磁材料及其制备方法
JP5240234B2 (ja) * 2010-04-30 2013-07-17 株式会社デンソー 圧粉磁心の製造方法
JP5728987B2 (ja) 2010-09-30 2015-06-03 Tdk株式会社 圧粉磁心
JP6075605B2 (ja) * 2012-09-14 2017-02-08 アイシン精機株式会社 軟磁性体及びその製造方法
JP2014072367A (ja) * 2012-09-28 2014-04-21 Hitachi Chemical Co Ltd 被覆金属粉及び圧粉磁心
CN103236332B (zh) * 2013-05-20 2016-01-20 哈尔滨工业大学 复合软磁材料的制备方法
KR101983140B1 (ko) 2013-06-21 2019-05-28 삼성전기주식회사 금속 자성체 분말 및 그 형성 방법, 그리고 상기 금속 자성체 분말을 이용하여 제조된 인덕터
JP6399299B2 (ja) 2013-12-26 2018-10-03 Tdk株式会社 軟磁性圧粉磁心
JP6358491B2 (ja) 2013-12-26 2018-07-18 日立金属株式会社 圧粉磁心、それを用いたコイル部品および圧粉磁心の製造方法
TWI520161B (zh) * 2014-01-14 2016-02-01 日立金屬股份有限公司 磁心及使用該磁心的線圈部件
CN104078182B (zh) * 2014-07-24 2017-11-28 武汉科技大学 一种铁基软磁复合磁粉芯及其制备方法
JP6506658B2 (ja) * 2015-08-18 2019-04-24 アルプスアルパイン株式会社 圧粉コア、当該圧粉コアを備える電子・電気部品、および当該電子・電気部品が実装された電子・電気機器
US10622129B2 (en) * 2016-06-30 2020-04-14 Taiyo Yuden Co., Ltd. Magnetic material and electronic component
JP7015647B2 (ja) * 2016-06-30 2022-02-03 太陽誘電株式会社 磁性材料及び電子部品

Also Published As

Publication number Publication date
US20180374619A1 (en) 2018-12-27
US11869692B2 (en) 2024-01-09
KR20190001522A (ko) 2019-01-04
KR102053088B1 (ko) 2019-12-06
CN109119222A (zh) 2019-01-01
JP2019009307A (ja) 2019-01-17
CN109119222B (zh) 2021-12-31

Similar Documents

Publication Publication Date Title
JP6930722B2 (ja) 磁性材料、電子部品及び磁性材料の製造方法
TWI732210B (zh) 磁性材料及電子零件
CN103165258B (zh) 线圈型电子零件
CN103314418B (zh) 低磁致伸缩高磁通量密度复合软磁性材料及其制造方法、以及电磁电路部件
KR101389027B1 (ko) 코일형 전자 부품 및 그 제조 방법
CN107275031B (zh) 磁性体和具有磁性体的线圈部件
WO2014112483A1 (ja) 圧粉磁心の製造方法、圧粉磁心およびコイル部品
JP7003046B2 (ja) 磁心
JP6868159B2 (ja) 圧粉磁心
JP2009164317A (ja) 軟磁性複合圧密コアの製造方法。
JP7133381B2 (ja) 圧粉磁心
JP7536818B2 (ja) 圧粉磁心用粉末、圧粉磁心用粉末の製造方法、圧粉磁心及び圧粉磁心の製造方法
JP6663138B2 (ja) 端子付き圧粉磁心およびその製造方法
JP6556780B2 (ja) 圧粉磁心、磁心用粉末およびそれらの製造方法
JP2008297622A (ja) 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
JP2007129093A (ja) 軟磁性材料およびこれを用いて製造された圧粉磁心
JP2018137349A (ja) 磁心およびコイル部品
JP2021089964A (ja) コーティング粒子粉末およびその製造方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200611

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20200611

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210427

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210623

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: 20210713

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210804

R150 Certificate of patent or registration of utility model

Ref document number: 6930722

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250