JPS5730118A - Vertically magnetized medium and its manufacture - Google Patents

Vertically magnetized medium and its manufacture

Info

Publication number
JPS5730118A
JPS5730118A JP10547480A JP10547480A JPS5730118A JP S5730118 A JPS5730118 A JP S5730118A JP 10547480 A JP10547480 A JP 10547480A JP 10547480 A JP10547480 A JP 10547480A JP S5730118 A JPS5730118 A JP S5730118A
Authority
JP
Japan
Prior art keywords
film
magnetic
vertically magnetized
magnetic recording
manufacture
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.)
Pending
Application number
JP10547480A
Other languages
Japanese (ja)
Inventor
Hiroshi Miyama
Yoshio Watanabe
Nobuaki Furuya
Yasuhiko Nakayama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10547480A priority Critical patent/JPS5730118A/en
Publication of JPS5730118A publication Critical patent/JPS5730118A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers

Abstract

PURPOSE:To improve magnetic recording sensitivity and recording density by obtaining the high orientation degree of the crystallinity of the magnetic material of a magnetic recording medium for vertical magnetization. CONSTITUTION:On a base 12, a magnetic layer 11 having high magnetic permeability and in-surface anisotropy of its surface, such as a permalloy film, is formed and on the surface, an organic high-molecular film 10, such as a polyimide film and polyester film, is formed. On the film 10, a vertically magnetized film 9, such as a sputtering film of Co-Cr alloy, having vertical anisotropy is further formed to obtain a magnetic recording medium for vertical magnetization.
JP10547480A 1980-07-30 1980-07-30 Vertically magnetized medium and its manufacture Pending JPS5730118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10547480A JPS5730118A (en) 1980-07-30 1980-07-30 Vertically magnetized medium and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10547480A JPS5730118A (en) 1980-07-30 1980-07-30 Vertically magnetized medium and its manufacture

Publications (1)

Publication Number Publication Date
JPS5730118A true JPS5730118A (en) 1982-02-18

Family

ID=14408586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10547480A Pending JPS5730118A (en) 1980-07-30 1980-07-30 Vertically magnetized medium and its manufacture

Country Status (1)

Country Link
JP (1) JPS5730118A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5758226A (en) * 1980-09-22 1982-04-07 Toshiba Corp Magnetic recording medium
JPS6052930A (en) * 1983-09-02 1985-03-26 Teijin Ltd Production of vertical magnetic recording medium
JPS6083218A (en) * 1983-10-14 1985-05-11 Hitachi Ltd Vertical magnetic recording medium
JPS61206923A (en) * 1985-03-12 1986-09-13 Teijin Ltd Production of magnetic recording medium
US4767483A (en) * 1982-11-29 1988-08-30 Fuji Xerox Co., Ltd. Method of manufacturing a magnetic recording medium
US7862913B2 (en) 2006-10-23 2011-01-04 Hitachi Global Storage Technologies Netherlands B.V. Oxide magnetic recording layers for perpendicular recording media

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5758226A (en) * 1980-09-22 1982-04-07 Toshiba Corp Magnetic recording medium
JPS6143769B2 (en) * 1980-09-22 1986-09-30 Tokyo Shibaura Electric Co
US4767483A (en) * 1982-11-29 1988-08-30 Fuji Xerox Co., Ltd. Method of manufacturing a magnetic recording medium
JPS6052930A (en) * 1983-09-02 1985-03-26 Teijin Ltd Production of vertical magnetic recording medium
JPH0320816B2 (en) * 1983-09-02 1991-03-20 Teijin Ltd
JPS6083218A (en) * 1983-10-14 1985-05-11 Hitachi Ltd Vertical magnetic recording medium
JPS61206923A (en) * 1985-03-12 1986-09-13 Teijin Ltd Production of magnetic recording medium
US7862913B2 (en) 2006-10-23 2011-01-04 Hitachi Global Storage Technologies Netherlands B.V. Oxide magnetic recording layers for perpendicular recording media

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