KR900004751B1 - 자기 기록 매체 - Google Patents
자기 기록 매체 Download PDFInfo
- Publication number
 - KR900004751B1 KR900004751B1 KR1019860008524A KR860008524A KR900004751B1 KR 900004751 B1 KR900004751 B1 KR 900004751B1 KR 1019860008524 A KR1019860008524 A KR 1019860008524A KR 860008524 A KR860008524 A KR 860008524A KR 900004751 B1 KR900004751 B1 KR 900004751B1
 - Authority
 - KR
 - South Korea
 - Prior art keywords
 - weight
 - vinyl alcohol
 - layer
 - magnetic recording
 - magnetic
 - 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
 
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
 
 - 
        
- 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
 - G11B5/735—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 characterised by the back layer
 
 
Landscapes
- Paints Or Removers (AREA)
 - Magnetic Record Carriers (AREA)
 
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| JP60-231365 | 1985-10-18 | ||
| JP60231365A JPS6292234A (ja) | 1985-10-18 | 1985-10-18 | 磁気記録媒体 | 
| JP231365 | 1985-10-18 | 
Publications (2)
| Publication Number | Publication Date | 
|---|---|
| KR870004403A KR870004403A (ko) | 1987-05-09 | 
| KR900004751B1 true KR900004751B1 (ko) | 1990-07-05 | 
Family
ID=16922477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| KR1019860008524A Expired KR900004751B1 (ko) | 1985-10-18 | 1986-10-11 | 자기 기록 매체 | 
Country Status (3)
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| JPS567233A (en) * | 1979-06-25 | 1981-01-24 | Tdk Corp | Magnetic recording medium | 
| JPS57208636A (en) * | 1981-06-19 | 1982-12-21 | Tdk Corp | Magnetic recording medium | 
- 
        1985
        
- 1985-10-18 JP JP60231365A patent/JPS6292234A/ja active Pending
 
 - 
        1986
        
- 1986-10-11 KR KR1019860008524A patent/KR900004751B1/ko not_active Expired
 - 1986-10-17 DE DE19863635424 patent/DE3635424A1/de active Granted
 
 
Also Published As
| Publication number | Publication date | 
|---|---|
| JPS6292234A (ja) | 1987-04-27 | 
| KR870004403A (ko) | 1987-05-09 | 
| DE3635424C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-12-07 | 
| DE3635424A1 (de) | 1987-04-23 | 
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Legal Events
| Date | Code | Title | Description | 
|---|---|---|---|
| A201 | Request for examination | ||
| PA0109 | Patent application | 
             St.27 status event code: A-0-1-A10-A12-nap-PA0109  | 
        |
| PA0201 | Request for examination | 
             St.27 status event code: A-1-2-D10-D11-exm-PA0201  | 
        |
| R17-X000 | Change to representative recorded | 
             St.27 status event code: A-3-3-R10-R17-oth-X000  | 
        |
| PG1501 | Laying open of application | 
             St.27 status event code: A-1-1-Q10-Q12-nap-PG1501  | 
        |
| G160 | Decision to publish patent application | ||
| PG1605 | Publication of application before grant of patent | 
             St.27 status event code: A-2-2-Q10-Q13-nap-PG1605  | 
        |
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration | 
             St.27 status event code: A-1-2-D10-D22-exm-PE0701  | 
        |
| GRNT | Written decision to grant | ||
| PR0701 | Registration of establishment | 
             St.27 status event code: A-2-4-F10-F11-exm-PR0701  | 
        |
| PR1002 | Payment of registration fee | 
             St.27 status event code: A-2-2-U10-U11-oth-PR1002 Fee payment year number: 1  | 
        |
| FPAY | Annual fee payment | 
             Payment date: 19930510 Year of fee payment: 4  | 
        |
| PR1001 | Payment of annual fee | 
             St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 4  | 
        |
| LAPS | Lapse due to unpaid annual fee | ||
| PC1903 | Unpaid annual fee | 
             St.27 status event code: A-4-4-U10-U13-oth-PC1903 Not in force date: 19940706 Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE  | 
        |
| PC1903 | Unpaid annual fee | 
             St.27 status event code: N-4-6-H10-H13-oth-PC1903 Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE Not in force date: 19940706  | 
        |
| P22-X000 | Classification modified | 
             St.27 status event code: A-4-4-P10-P22-nap-X000  | 
        |
| P22-X000 | Classification modified | 
             St.27 status event code: A-4-4-P10-P22-nap-X000  |