JPH0153491B2 - - Google Patents

Info

Publication number
JPH0153491B2
JPH0153491B2 JP57088464A JP8846482A JPH0153491B2 JP H0153491 B2 JPH0153491 B2 JP H0153491B2 JP 57088464 A JP57088464 A JP 57088464A JP 8846482 A JP8846482 A JP 8846482A JP H0153491 B2 JPH0153491 B2 JP H0153491B2
Authority
JP
Japan
Prior art keywords
magnet
magnetic
alloy
straight pipe
processing
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.)
Expired
Application number
JP57088464A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58205398A (ja
Inventor
Kenzaburo Iijima
Toshiharu Hoshi
Kazumoto Asano
Yoshinori Hayashi
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.)
Yamaha Corp
Original Assignee
Yamaha 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
Application filed by Yamaha Corp filed Critical Yamaha Corp
Priority to JP57088464A priority Critical patent/JPS58205398A/ja
Priority to US06/496,814 priority patent/US4580119A/en
Publication of JPS58205398A publication Critical patent/JPS58205398A/ja
Priority to US06/755,002 priority patent/US4601764A/en
Publication of JPH0153491B2 publication Critical patent/JPH0153491B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0289—Transducers, loudspeakers, moving coil arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
JP57088464A 1982-05-25 1982-05-25 異形磁石の製造法 Granted JPS58205398A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP57088464A JPS58205398A (ja) 1982-05-25 1982-05-25 異形磁石の製造法
US06/496,814 US4580119A (en) 1982-05-25 1983-05-23 Anistropic configuration magnet
US06/755,002 US4601764A (en) 1982-05-25 1985-07-15 Method for producing anistropic configuration magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57088464A JPS58205398A (ja) 1982-05-25 1982-05-25 異形磁石の製造法

Publications (2)

Publication Number Publication Date
JPS58205398A JPS58205398A (ja) 1983-11-30
JPH0153491B2 true JPH0153491B2 (enExample) 1989-11-14

Family

ID=13943489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57088464A Granted JPS58205398A (ja) 1982-05-25 1982-05-25 異形磁石の製造法

Country Status (2)

Country Link
US (2) US4580119A (enExample)
JP (1) JPS58205398A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10327082B4 (de) * 2003-06-13 2007-06-21 Vacuumschmelze Gmbh & Co. Kg Rotationssymmetrischer Hohlkörper aus einer verformbaren dauermagnetischen Legierung sowie dessen Verwendung und Herstellverfahren
TWI545973B (zh) * 2014-01-29 2016-08-11 Merry Electronics Co Ltd External magnetic circuit improved structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1976230A (en) * 1930-12-25 1934-10-09 Mitsubishi Electric Corp Permanent magnet and method of manufacturing same
US3971054A (en) * 1974-07-12 1976-07-20 Motorola, Inc. Method and apparatus for magnetizing permanent magnet in magnetic structure

Also Published As

Publication number Publication date
JPS58205398A (ja) 1983-11-30
US4601764A (en) 1986-07-22
US4580119A (en) 1986-04-01

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