JPS5259894A - Magnetic material - Google Patents

Magnetic material

Info

Publication number
JPS5259894A
JPS5259894A JP50136554A JP13655475A JPS5259894A JP S5259894 A JPS5259894 A JP S5259894A JP 50136554 A JP50136554 A JP 50136554A JP 13655475 A JP13655475 A JP 13655475A JP S5259894 A JPS5259894 A JP S5259894A
Authority
JP
Japan
Prior art keywords
magnetic material
nucleus
providing
iron oxide
specified range
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
JP50136554A
Other languages
Japanese (ja)
Other versions
JPS5522006B2 (en
Inventor
Takehisa Okawa
Hisashi Takei
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP50136554A priority Critical patent/JPS5259894A/en
Publication of JPS5259894A publication Critical patent/JPS5259894A/en
Publication of JPS5522006B2 publication Critical patent/JPS5522006B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE: To obtain a magnetic material within the specified range of pH by providing its exclusive surface with cobalt layer on the nucleus of ferromagnetic iron oxide.
COPYRIGHT: (C)1977,JPO&Japio
JP50136554A 1975-11-13 1975-11-13 Magnetic material Granted JPS5259894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50136554A JPS5259894A (en) 1975-11-13 1975-11-13 Magnetic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50136554A JPS5259894A (en) 1975-11-13 1975-11-13 Magnetic material

Publications (2)

Publication Number Publication Date
JPS5259894A true JPS5259894A (en) 1977-05-17
JPS5522006B2 JPS5522006B2 (en) 1980-06-13

Family

ID=15177924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50136554A Granted JPS5259894A (en) 1975-11-13 1975-11-13 Magnetic material

Country Status (1)

Country Link
JP (1) JPS5259894A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556016A (en) * 1978-10-20 1980-04-24 Hitachi Maxell Ltd Production of ferromagnetic powder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49113199A (en) * 1973-03-05 1974-10-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49113199A (en) * 1973-03-05 1974-10-29

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556016A (en) * 1978-10-20 1980-04-24 Hitachi Maxell Ltd Production of ferromagnetic powder
JPS6242857B2 (en) * 1978-10-20 1987-09-10 Hitachi Maxell

Also Published As

Publication number Publication date
JPS5522006B2 (en) 1980-06-13

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