JPS648523A - Information recording medium - Google Patents
Information recording mediumInfo
- Publication number
- JPS648523A JPS648523A JP62163070A JP16307087A JPS648523A JP S648523 A JPS648523 A JP S648523A JP 62163070 A JP62163070 A JP 62163070A JP 16307087 A JP16307087 A JP 16307087A JP S648523 A JPS648523 A JP S648523A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- adhered
- exfoliation
- recording medium
- information recording
- 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
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
PURPOSE:To satisfactorily maintain the adhesiveness between a substrate and the part to be adhered to the substrate by providing recesses or projecting parts near to at least the outermost part in the adhered part of the substrate. CONSTITUTION:The recesses or projecting parts formed in the region near at least the outermost part in the adhered part of the substrate 1. For example, grooves 7 are provided to the flat part 5 in the outside part of the substrate 1. The progression of exfoliation is, therefore, hindered and the complete exfoliation is obviated even the substrate 1 and the recording part 10 begin to exfoliate from the outside circumference. Namely, the exfoliation of the substrate 1 and the recording part 10 is suppressed by these grooves 7. The adhesive strength of the substrate and the part to be adhered to the substrate 1 is thereby improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62163070A JPS648523A (en) | 1987-06-30 | 1987-06-30 | Information recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62163070A JPS648523A (en) | 1987-06-30 | 1987-06-30 | Information recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648523A true JPS648523A (en) | 1989-01-12 |
Family
ID=15766606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62163070A Pending JPS648523A (en) | 1987-06-30 | 1987-06-30 | Information recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648523A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05205320A (en) * | 1992-01-28 | 1993-08-13 | Victor Co Of Japan Ltd | Production of disk and disk |
-
1987
- 1987-06-30 JP JP62163070A patent/JPS648523A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05205320A (en) * | 1992-01-28 | 1993-08-13 | Victor Co Of Japan Ltd | Production of disk and disk |
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