JPS6460813A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS6460813A JPS6460813A JP21745887A JP21745887A JPS6460813A JP S6460813 A JPS6460813 A JP S6460813A JP 21745887 A JP21745887 A JP 21745887A JP 21745887 A JP21745887 A JP 21745887A JP S6460813 A JPS6460813 A JP S6460813A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic film
- thin magnetic
- alloy
- weatherability
- recording medium
- 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
Links
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To improve electromagnetic conversion characteristics and weatherability by forming a 1st thin magnetic film consisting of Co or Fe-Co alloy and the 2nd thin magnetic film consisting of a Co-Ni alloy successively on a nonmagnetic base. CONSTITUTION:The magnetic layer is formed of the two-layered structure of the 1st thin magnetic film 2 consisting of a high-saturation magnetic flux density material and the 2nd thin magnetic film consisting of a material having excellent weatherability. Namely, the 1st thin magnetic film 2 consisting of the Co or Fe-Co alloy (substitution quantity of Co is 0-50atom.%) and the 2nd thin magnetic film 3 consisting of the Co-Ni alloy (substitution quantity of Ni is 20-50atom.%) are successively formed on the nonmagnetic base. A synergistic effect is thereby exhibited by the two films and the excellent electromagnetic conversion characteristics and weatherability are obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21745887A JPS6460813A (en) | 1987-08-31 | 1987-08-31 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21745887A JPS6460813A (en) | 1987-08-31 | 1987-08-31 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6460813A true JPS6460813A (en) | 1989-03-07 |
Family
ID=16704545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21745887A Pending JPS6460813A (en) | 1987-08-31 | 1987-08-31 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6460813A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02226514A (en) * | 1989-02-23 | 1990-09-10 | Sony Corp | Magnetic recording medium |
US5736263A (en) * | 1995-02-08 | 1998-04-07 | Kao Corporation | Magnetic recording medium comprising successive magnetic metallic films of iron, nickel, and cobalt deposited on a substrate |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61229228A (en) * | 1985-04-04 | 1986-10-13 | Canon Inc | Magnetic recording medium |
-
1987
- 1987-08-31 JP JP21745887A patent/JPS6460813A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61229228A (en) * | 1985-04-04 | 1986-10-13 | Canon Inc | Magnetic recording medium |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02226514A (en) * | 1989-02-23 | 1990-09-10 | Sony Corp | Magnetic recording medium |
US5736263A (en) * | 1995-02-08 | 1998-04-07 | Kao Corporation | Magnetic recording medium comprising successive magnetic metallic films of iron, nickel, and cobalt deposited on a substrate |
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