JPH0439885U - - Google Patents
Info
- Publication number
- JPH0439885U JPH0439885U JP1990082590U JP8259090U JPH0439885U JP H0439885 U JPH0439885 U JP H0439885U JP 1990082590 U JP1990082590 U JP 1990082590U JP 8259090 U JP8259090 U JP 8259090U JP H0439885 U JPH0439885 U JP H0439885U
- Authority
- JP
- Japan
- Prior art keywords
- physical shape
- optical
- disc
- discs
- change
- 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
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000035807 sensation Effects 0.000 claims 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990082590U JPH0439885U (es) | 1990-08-02 | 1990-08-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990082590U JPH0439885U (es) | 1990-08-02 | 1990-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0439885U true JPH0439885U (es) | 1992-04-03 |
Family
ID=31629545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990082590U Pending JPH0439885U (es) | 1990-08-02 | 1990-08-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0439885U (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008176835A (ja) * | 2007-01-16 | 2008-07-31 | Tdk Corp | 磁気記録媒体、磁気記録再生装置、磁気記録媒体の製造方法及び磁気記録媒体の検査方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848089B2 (ja) * | 1975-10-21 | 1983-10-26 | 凸版印刷株式会社 | グラビアセイハンホウ |
| JPS60253078A (ja) * | 1984-05-30 | 1985-12-13 | Toshiba Corp | 回転磁気記録媒体 |
-
1990
- 1990-08-02 JP JP1990082590U patent/JPH0439885U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848089B2 (ja) * | 1975-10-21 | 1983-10-26 | 凸版印刷株式会社 | グラビアセイハンホウ |
| JPS60253078A (ja) * | 1984-05-30 | 1985-12-13 | Toshiba Corp | 回転磁気記録媒体 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008176835A (ja) * | 2007-01-16 | 2008-07-31 | Tdk Corp | 磁気記録媒体、磁気記録再生装置、磁気記録媒体の製造方法及び磁気記録媒体の検査方法 |