JPS6464114A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS6464114A
JPS6464114A JP22078787A JP22078787A JPS6464114A JP S6464114 A JPS6464114 A JP S6464114A JP 22078787 A JP22078787 A JP 22078787A JP 22078787 A JP22078787 A JP 22078787A JP S6464114 A JPS6464114 A JP S6464114A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
layer
material layer
magnetic material
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
JP22078787A
Other languages
Japanese (ja)
Inventor
Tadao Katsuragawa
Wasaburo Ota
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP22078787A priority Critical patent/JPS6464114A/en
Publication of JPS6464114A publication Critical patent/JPS6464114A/en
Pending legal-status Critical Current

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  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To obtain a perpendicular magnetic recording medium which can be formed at a low temp., allows high-density recording and can be formed as a continuous magnetic material layer by providing a magnetic material layer consisting of a specific ferromagnetic oxide in contact with a Ge layer. CONSTITUTION:The magnetic material layer 15 in contact with the Ge layer 13 on a base 11 which forms the magnetic recording medium consists of the ferromagnetic oxide by sputtering, etc., expressed by the general formula I. The perpendicular magnetic recording medium which can be formed under the low-temp. conditions, allows high-density recording, can be formed as the continuous magnetic layer and has the good orientability of the C-face is thereby obtd. In the formula, Me: at least one kind of metal element among Ba, Pb, Sr, Ca, and Sc. Ma: 1 or >=2 kinds of metal elements which can be substd. with Fe, x: 0<=x<=1, n: 5<=n<=6.
JP22078787A 1987-09-03 1987-09-03 Magnetic recording medium Pending JPS6464114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22078787A JPS6464114A (en) 1987-09-03 1987-09-03 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22078787A JPS6464114A (en) 1987-09-03 1987-09-03 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6464114A true JPS6464114A (en) 1989-03-10

Family

ID=16756561

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22078787A Pending JPS6464114A (en) 1987-09-03 1987-09-03 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS6464114A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6172958B1 (en) * 1996-05-09 2001-01-09 Sony Corporation Optical pick-up and disk player

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60214417A (en) * 1984-04-11 1985-10-26 Hitachi Ltd Vertical magnetic recording medium
JPS6224432A (en) * 1985-07-24 1987-02-02 Ricoh Co Ltd Production of magnetic recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60214417A (en) * 1984-04-11 1985-10-26 Hitachi Ltd Vertical magnetic recording medium
JPS6224432A (en) * 1985-07-24 1987-02-02 Ricoh Co Ltd Production of magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6172958B1 (en) * 1996-05-09 2001-01-09 Sony Corporation Optical pick-up and disk player

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