NL188251B - MAGNETIC REGISTRATION MEDIUM. - Google Patents
MAGNETIC REGISTRATION MEDIUM.Info
- Publication number
- NL188251B NL188251B NLAANVRAGE8200654,A NL8200654A NL188251B NL 188251 B NL188251 B NL 188251B NL 8200654 A NL8200654 A NL 8200654A NL 188251 B NL188251 B NL 188251B
- Authority
- NL
- Netherlands
- Prior art keywords
- registration medium
- magnetic registration
- magnetic
- medium
- registration
- Prior art date
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
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
-
- 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
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
-
- 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2352081A JPS57138033A (en) | 1981-02-19 | 1981-02-19 | Magnetic recording medium |
JP2352081 | 1981-02-19 | ||
JP4338881 | 1981-03-24 | ||
JP56043388A JPS57158037A (en) | 1981-03-24 | 1981-03-24 | Magnetic recording medium and its manufacture |
Publications (3)
Publication Number | Publication Date |
---|---|
NL8200654A NL8200654A (en) | 1982-09-16 |
NL188251B true NL188251B (en) | 1991-12-02 |
NL188251C NL188251C (en) | 1994-08-16 |
Family
ID=26360887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8200654A NL188251C (en) | 1981-02-19 | 1982-02-18 | Magnetic recording medium. |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3206109A1 (en) |
GB (1) | GB2096920B (en) |
NL (1) | NL188251C (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59119538A (en) * | 1982-12-25 | 1984-07-10 | Tdk Corp | Magnetic recording medium |
JPS61115237A (en) * | 1984-11-12 | 1986-06-02 | Victor Co Of Japan Ltd | Magnetic recording medium |
US4797303A (en) * | 1985-09-04 | 1989-01-10 | Unisys Corp. | Surface lubricants for disc record |
ATE97758T1 (en) * | 1986-08-28 | 1993-12-15 | Unisys Corp | SURFACE LUBRICANTS FOR MEMORY SURFACE AND METHODS TO REDUCE THEIR WEAR. |
-
1982
- 1982-02-15 GB GB8204395A patent/GB2096920B/en not_active Expired
- 1982-02-18 NL NL8200654A patent/NL188251C/en not_active IP Right Cessation
- 1982-02-19 DE DE19823206109 patent/DE3206109A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3206109C2 (en) | 1991-03-14 |
GB2096920B (en) | 1984-06-06 |
NL8200654A (en) | 1982-09-16 |
NL188251C (en) | 1994-08-16 |
DE3206109A1 (en) | 1982-11-04 |
GB2096920A (en) | 1982-10-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A85 | Still pending on 85-01-01 | ||
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
R1B | Notice of opposition during period of laying open | ||
NP1G | Patent granted (not automatically) [patent specification modified] | ||
V1 | Lapsed because of non-payment of the annual fee |
Effective date: 19970901 |