EP0535902A3 - Internal closed magnetic circuit anisotropic magnet and method - Google Patents

Internal closed magnetic circuit anisotropic magnet and method Download PDF

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Publication number
EP0535902A3
EP0535902A3 EP19920308844 EP92308844A EP0535902A3 EP 0535902 A3 EP0535902 A3 EP 0535902A3 EP 19920308844 EP19920308844 EP 19920308844 EP 92308844 A EP92308844 A EP 92308844A EP 0535902 A3 EP0535902 A3 EP 0535902A3
Authority
EP
European Patent Office
Prior art keywords
magnetic circuit
closed magnetic
anisotropic magnet
internal closed
internal
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.)
Withdrawn
Application number
EP19920308844
Other languages
English (en)
Other versions
EP0535902A2 (fr
Inventor
Satoshi Tokyo Head Office Nakatsuka
Akira Tokyo Head Office Yasuda
Itsuo Tanaka
Koichi Nushiro
Takahiro C/O Technical Research Division Kikuchi
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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
Priority claimed from JP30631091A external-priority patent/JPH05144650A/ja
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of EP0535902A2 publication Critical patent/EP0535902A2/fr
Publication of EP0535902A3 publication Critical patent/EP0535902A3/en
Withdrawn legal-status Critical Current

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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
    • H01F41/02—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
    • H01F41/0273—Imparting anisotropy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/021—Construction of PM
EP19920308844 1991-09-30 1992-09-29 Internal closed magnetic circuit anisotropic magnet and method Withdrawn EP0535902A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP25161091 1991-09-30
JP251610/91 1991-09-30
JP30631091A JPH05144650A (ja) 1991-11-21 1991-11-21 磁石の製造方法
JP306310/91 1991-11-21
JP111721/92 1992-04-30
JP11172192 1992-04-30

Publications (2)

Publication Number Publication Date
EP0535902A2 EP0535902A2 (fr) 1993-04-07
EP0535902A3 true EP0535902A3 (en) 1993-11-03

Family

ID=27312027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920308844 Withdrawn EP0535902A3 (en) 1991-09-30 1992-09-29 Internal closed magnetic circuit anisotropic magnet and method

Country Status (1)

Country Link
EP (1) EP0535902A3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6304162B1 (en) * 1999-06-22 2001-10-16 Toda Kogyo Corporation Anisotropic permanent magnet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833517A1 (de) * 1977-08-01 1979-02-08 Matsushita Electric Ind Co Ltd Magnetsystem
US4954800A (en) * 1986-05-20 1990-09-04 Canon Kabushiki Kaisha Magnet and method of manufacturing the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924524B2 (ja) * 1979-07-16 1984-06-09 松下電器産業株式会社 異方性マグネットを用いた磁気回路
JPH0828293B2 (ja) * 1987-04-07 1996-03-21 日立金属株式会社 円筒状永久磁石、それを用いたモータ及びその製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833517A1 (de) * 1977-08-01 1979-02-08 Matsushita Electric Ind Co Ltd Magnetsystem
US4954800A (en) * 1986-05-20 1990-09-04 Canon Kabushiki Kaisha Magnet and method of manufacturing the same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 216 (E-760)19 May 1989 & JP-A-01 027 208 ( HITACHI METALS LTD. ) 30 January 1989 *
PATENT ABSTRACTS OF JAPAN vol. 5, no. 63 (E-54)(735) 28 April 1981 & JP-A-56 013 705 ( MATSUSHITA DENKI SANGYO K.K. ) 10 February 1981 *

Also Published As

Publication number Publication date
EP0535902A2 (fr) 1993-04-07

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