JPS51149596A - Magnetic recording medium and its prepreparation method - Google Patents

Magnetic recording medium and its prepreparation method

Info

Publication number
JPS51149596A
JPS51149596A JP50072070A JP7207075A JPS51149596A JP S51149596 A JPS51149596 A JP S51149596A JP 50072070 A JP50072070 A JP 50072070A JP 7207075 A JP7207075 A JP 7207075A JP S51149596 A JPS51149596 A JP S51149596A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
prepreparation
needle
consisted
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
JP50072070A
Other languages
Japanese (ja)
Other versions
JPS609321B2 (en
Inventor
Hiromasa Isono
Noboru Takahashi
Setsuo Ozaki
Tsunehide Naruse
Toshikazu Nishihara
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP50072070A priority Critical patent/JPS609321B2/en
Publication of JPS51149596A publication Critical patent/JPS51149596A/en
Publication of JPS609321B2 publication Critical patent/JPS609321B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Paints Or Removers (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE: A magnetic recording medium which is consisted of needle-shaped minute alloy particles and has an enhanced magnetizing force and coercive force by allowing Co to be absorbed to needle shape ϒ-Fe2O3 containing Co.
COPYRIGHT: (C)1976,JPO&Japio
JP50072070A 1975-06-16 1975-06-16 Magnetic recording medium and its manufacturing method Expired JPS609321B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50072070A JPS609321B2 (en) 1975-06-16 1975-06-16 Magnetic recording medium and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50072070A JPS609321B2 (en) 1975-06-16 1975-06-16 Magnetic recording medium and its manufacturing method

Publications (2)

Publication Number Publication Date
JPS51149596A true JPS51149596A (en) 1976-12-22
JPS609321B2 JPS609321B2 (en) 1985-03-09

Family

ID=13478763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50072070A Expired JPS609321B2 (en) 1975-06-16 1975-06-16 Magnetic recording medium and its manufacturing method

Country Status (1)

Country Link
JP (1) JPS609321B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122664A (en) * 1978-03-16 1979-09-22 Kanto Denka Kogyo Kk Production of magnetic powder for magnetic recording based on iron
JPS54122663A (en) * 1978-03-16 1979-09-22 Kanto Denka Kogyo Kk Production of magnetic powder for magnetic recording based on iron

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926800A (en) * 1972-07-05 1974-03-09
JPS49119197A (en) * 1973-03-20 1974-11-14

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926800A (en) * 1972-07-05 1974-03-09
JPS49119197A (en) * 1973-03-20 1974-11-14

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122664A (en) * 1978-03-16 1979-09-22 Kanto Denka Kogyo Kk Production of magnetic powder for magnetic recording based on iron
JPS54122663A (en) * 1978-03-16 1979-09-22 Kanto Denka Kogyo Kk Production of magnetic powder for magnetic recording based on iron

Also Published As

Publication number Publication date
JPS609321B2 (en) 1985-03-09

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