JPS5433255A - Prduction of ferromagnetic powder - Google Patents

Prduction of ferromagnetic powder

Info

Publication number
JPS5433255A
JPS5433255A JP9917877A JP9917877A JPS5433255A JP S5433255 A JPS5433255 A JP S5433255A JP 9917877 A JP9917877 A JP 9917877A JP 9917877 A JP9917877 A JP 9917877A JP S5433255 A JPS5433255 A JP S5433255A
Authority
JP
Japan
Prior art keywords
prduction
ferromagnetic powder
cool
allowing
iron oxide
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.)
Granted
Application number
JP9917877A
Other languages
Japanese (ja)
Other versions
JPS6047723B2 (en
Inventor
Mikio Kishimoto
Akira Matsumoto
Toshinobu Sueyoshi
Kunio Wakai
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP52099178A priority Critical patent/JPS6047723B2/en
Publication of JPS5433255A publication Critical patent/JPS5433255A/en
Publication of JPS6047723B2 publication Critical patent/JPS6047723B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE: To provide stable high coercive force causing no change with time by heating iron oxide magnetic powder containing cobalt in a magnetic field under specific conditions and allowing the same to cool.
COPYRIGHT: (C)1979,JPO&Japio
JP52099178A 1977-08-18 1977-08-18 Manufacturing method of ferromagnetic powder Expired JPS6047723B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52099178A JPS6047723B2 (en) 1977-08-18 1977-08-18 Manufacturing method of ferromagnetic powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52099178A JPS6047723B2 (en) 1977-08-18 1977-08-18 Manufacturing method of ferromagnetic powder

Publications (2)

Publication Number Publication Date
JPS5433255A true JPS5433255A (en) 1979-03-10
JPS6047723B2 JPS6047723B2 (en) 1985-10-23

Family

ID=14240387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52099178A Expired JPS6047723B2 (en) 1977-08-18 1977-08-18 Manufacturing method of ferromagnetic powder

Country Status (1)

Country Link
JP (1) JPS6047723B2 (en)

Also Published As

Publication number Publication date
JPS6047723B2 (en) 1985-10-23

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