JPH0323975B2 - - Google Patents
Info
- Publication number
- JPH0323975B2 JPH0323975B2 JP56042966A JP4296681A JPH0323975B2 JP H0323975 B2 JPH0323975 B2 JP H0323975B2 JP 56042966 A JP56042966 A JP 56042966A JP 4296681 A JP4296681 A JP 4296681A JP H0323975 B2 JPH0323975 B2 JP H0323975B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- cobalt
- phosphorus
- manganese
- nickel
- 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.)
- Expired - Lifetime
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
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56042966A JPS57158013A (en) | 1981-03-24 | 1981-03-24 | Magnetic recording body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56042966A JPS57158013A (en) | 1981-03-24 | 1981-03-24 | Magnetic recording body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57158013A JPS57158013A (en) | 1982-09-29 |
JPH0323975B2 true JPH0323975B2 (en:Method) | 1991-04-02 |
Family
ID=12650773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56042966A Granted JPS57158013A (en) | 1981-03-24 | 1981-03-24 | Magnetic recording body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57158013A (en:Method) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4767939B2 (ja) * | 2007-12-28 | 2011-09-07 | 昭和電工株式会社 | 磁気ディスク用アルミニウム基板の製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5121562B2 (en:Method) * | 1972-04-14 | 1976-07-03 | ||
JPS4929445A (en:Method) * | 1972-07-20 | 1974-03-15 | ||
JPS52134706A (en) * | 1976-05-06 | 1977-11-11 | Univ Tohoku | Vertical magnetic recorder reproducer and system therefor |
-
1981
- 1981-03-24 JP JP56042966A patent/JPS57158013A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57158013A (en) | 1982-09-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4479528B2 (ja) | ガラス基体へのめっき方法、そのめっき方法を用いる磁気記録媒体用ディスク基板の製造方法及び垂直磁気記録媒体の製造方法 | |
US5091225A (en) | Magnetic disc member and process for manufacturing the same | |
JP3172441B2 (ja) | 非金属めっき方法、基板並びにこれを含むデータ記憶及び検索装置 | |
US4925738A (en) | Substrate for a magnetic disk and process for its production | |
US4150172A (en) | Method for producing a square loop magnetic media for very high density recording | |
CN100479038C (zh) | 磁记录介质及磁记录介质基片 | |
JPH0462420B2 (en:Method) | ||
JPH0323975B2 (en:Method) | ||
JPH0515790B2 (en:Method) | ||
JPH0429739B2 (en:Method) | ||
US3751345A (en) | Method of producing a magnetic storage medium | |
JPH0451885B2 (en:Method) | ||
JPH0237608B2 (ja) | Jikikirokutainoseizohoho | |
JPS6325826A (ja) | 磁気記録体 | |
JPS60149785A (ja) | 無電解めつき浴 | |
JPH0315254B2 (en:Method) | ||
JPH0310085A (ja) | 基板の表面処理方法 | |
KR100786664B1 (ko) | 수직 자기 기록 매체, 그 제조 방법, 및 수직 자기 기록 및재생 장치 | |
JPS62273629A (ja) | 磁気記録媒体の製造方法 | |
EP0555906A1 (en) | Glass substrate for magnetic recording medium | |
JPS6338432B2 (en:Method) | ||
JPH0362794B2 (en:Method) | ||
JPS62293516A (ja) | 磁気記録体の製造方法 | |
JPS6154018A (ja) | 磁気記録媒体 | |
JPH02236815A (ja) | 磁気記録媒体およびその製造方法 |