JPS648523A - Information recording medium - Google Patents

Information recording medium

Info

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
Application number
JP62163070A
Other languages
Japanese (ja)
Inventor
Ryutaro Tanaka
Masazumi Yana
Tetsuo Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP62163070A priority Critical patent/JPS648523A/en
Publication of JPS648523A publication Critical patent/JPS648523A/en
Pending legal-status Critical Current

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.
JP62163070A 1987-06-30 1987-06-30 Information recording medium Pending JPS648523A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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