JPS54141608A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS54141608A JPS54141608A JP5053578A JP5053578A JPS54141608A JP S54141608 A JPS54141608 A JP S54141608A JP 5053578 A JP5053578 A JP 5053578A JP 5053578 A JP5053578 A JP 5053578A JP S54141608 A JPS54141608 A JP S54141608A
- Authority
- JP
- Japan
- Prior art keywords
- layers
- ferromagnetic
- base material
- magnetic
- long axis
- 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)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To increase sensitivity and lower noise characteristic in short wavelength recording for sound and video recording in correspondence to higher density direction by alternately laminating and disposing non-magnetic layers and the ferromagnetic layers wherein the long axis directions of crystal particles are specified on a base material.
CONSTITUTION: A non-magnetic layer 2, first ferromagnetic layer 3, non-magnetic layer 4 and second ferromagnetic layer 5 are laminated and disposed on a base material 1 composed of high molecular molding or non-magnetic metal material. Here, known diagonal vapor deposition is performed in an oxidative atmosphere in such a manner that the formation of, e.g., the layers 2, 3 and the layers 4, 5 may be symmetrically accomplished by inverting and moving the base material 1 in the forward and backward directions so that the long axis directions C1, C2 of the ferromagnetic particles 8 constituting the layers 3, 5 become preferably 30 to 120° in mean crossing angle θ.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5053578A JPS54141608A (en) | 1978-04-26 | 1978-04-26 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5053578A JPS54141608A (en) | 1978-04-26 | 1978-04-26 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54141608A true JPS54141608A (en) | 1979-11-05 |
Family
ID=12861687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5053578A Pending JPS54141608A (en) | 1978-04-26 | 1978-04-26 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54141608A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56134317A (en) * | 1980-03-25 | 1981-10-21 | Tdk Corp | Magnetic recording medium |
JPS573223A (en) * | 1980-06-03 | 1982-01-08 | Tdk Corp | Magnetic recording medium |
JPS61214116A (en) * | 1985-03-19 | 1986-09-24 | Hitachi Maxell Ltd | Magnetic recording medium and its manufacturing method |
US4770924A (en) * | 1986-07-02 | 1988-09-13 | Tdk Corporation | Magnetic recording medium |
JPH02152007A (en) * | 1988-12-02 | 1990-06-12 | Tdk Corp | Magnetic recording medium |
-
1978
- 1978-04-26 JP JP5053578A patent/JPS54141608A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56134317A (en) * | 1980-03-25 | 1981-10-21 | Tdk Corp | Magnetic recording medium |
JPS573223A (en) * | 1980-06-03 | 1982-01-08 | Tdk Corp | Magnetic recording medium |
JPS61214116A (en) * | 1985-03-19 | 1986-09-24 | Hitachi Maxell Ltd | Magnetic recording medium and its manufacturing method |
US4770924A (en) * | 1986-07-02 | 1988-09-13 | Tdk Corporation | Magnetic recording medium |
JPH02152007A (en) * | 1988-12-02 | 1990-06-12 | Tdk Corp | Magnetic recording medium |
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