JPS5755531A - Vertical magnetic recording medium - Google Patents

Vertical magnetic recording medium

Info

Publication number
JPS5755531A
JPS5755531A JP55129469A JP12946980A JPS5755531A JP S5755531 A JPS5755531 A JP S5755531A JP 55129469 A JP55129469 A JP 55129469A JP 12946980 A JP12946980 A JP 12946980A JP S5755531 A JPS5755531 A JP S5755531A
Authority
JP
Japan
Prior art keywords
recording medium
thin film
magnetic recording
vertical magnetic
thickness
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
JP55129469A
Other languages
Japanese (ja)
Inventor
Takeshi Matsuo
Reiji Nishikawa
Yuko Fujiwara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55129469A priority Critical patent/JPS5755531A/en
Publication of JPS5755531A publication Critical patent/JPS5755531A/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
    • G11B5/667—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer

Landscapes

  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To attain a high orientation factor and at the same time to increase the characteristics of recording density for a vertical magnetic recording medium using Co-Cr alloy thin film, by using a specific substrate. CONSTITUTION:Cr is stuck on a nonmagnetic substrate of a film, etc. with a thickness of about 500Angstrom by a vapor deposition method. After this, a soft magnetic thin film layer of permalloy, etc. is formed in about 3,000Angstrom thickness by the vapor deposition method using an electric gun. Furthermore, a Co-Cr alloy layer containing about 18 atom % Cr is formed in about 3,000Angstrom on the soft magnetic thin film layer by a sputtering process.
JP55129469A 1980-09-18 1980-09-18 Vertical magnetic recording medium Pending JPS5755531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55129469A JPS5755531A (en) 1980-09-18 1980-09-18 Vertical magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55129469A JPS5755531A (en) 1980-09-18 1980-09-18 Vertical magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5755531A true JPS5755531A (en) 1982-04-02

Family

ID=15010256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55129469A Pending JPS5755531A (en) 1980-09-18 1980-09-18 Vertical magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5755531A (en)

Cited By (5)

* 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
JPS61217924A (en) * 1985-03-22 1986-09-27 Mitsubishi Electric Corp Vertical magnetic recording medium
JPS63317922A (en) * 1987-06-22 1988-12-26 Hitachi Ltd Perpendicular magnetic recording medium
US6387483B1 (en) 1997-12-18 2002-05-14 Nec Corporation Perpendicular magnetic recording medium and manufacturing process therefor
US6541104B2 (en) 1998-09-25 2003-04-01 Fujitsu Limited Magnetic recording medium and a magnetic recording device

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
JPS6143769B2 (en) * 1980-09-22 1986-09-30 Tokyo Shibaura Electric Co
JPS61217924A (en) * 1985-03-22 1986-09-27 Mitsubishi Electric Corp Vertical magnetic recording medium
JPS63317922A (en) * 1987-06-22 1988-12-26 Hitachi Ltd Perpendicular magnetic recording medium
US6387483B1 (en) 1997-12-18 2002-05-14 Nec Corporation Perpendicular magnetic recording medium and manufacturing process therefor
US6541104B2 (en) 1998-09-25 2003-04-01 Fujitsu Limited Magnetic recording medium and a magnetic recording device

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