JPS6424585U - - Google Patents

Info

Publication number
JPS6424585U
JPS6424585U JP11886587U JP11886587U JPS6424585U JP S6424585 U JPS6424585 U JP S6424585U JP 11886587 U JP11886587 U JP 11886587U JP 11886587 U JP11886587 U JP 11886587U JP S6424585 U JPS6424585 U JP S6424585U
Authority
JP
Japan
Prior art keywords
optical disk
disk substrate
identification mark
type
substrate
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
JP11886587U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP11886587U priority Critical patent/JPS6424585U/ja
Publication of JPS6424585U publication Critical patent/JPS6424585U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例に係る光デイスク基板
の平面図を表わす。１は情報を記録する領域、２
は情報の記録されている領域、３はクランピング
用の円穴、４は基板及び／又はメデイアの識別マ
ークである。 FIG. 1 shows a plan view of an optical disk substrate according to an embodiment of the present invention. 1 is an area for recording information, 2
3 is an area where information is recorded, 3 is a circular hole for clamping, and 4 is an identification mark for the substrate and/or media.

Claims (1)

【実用新案登録請求の範囲】 (1) 光デイスク基板上の情報が記録されない領
域において、基板の材質、光デイスクの種類、ガ
イド溝の品種等を示す識別マークが形成されてい
ることを特徴とする光デイスク基板。 (2) 識別マークが凹状となつていることを特徴
とする実用新案登録請求の範囲第１項記載の光デ
イスク基板。 (3) 光デイスク基板の材質がガラスであること
を特徴とする実用新案登録請求の範囲第１項記載
の光デイスク基板。[Claims for Utility Model Registration] (1) An identification mark indicating the material of the substrate, the type of optical disk, the type of guide groove, etc. is formed in the area on the optical disk substrate where information is not recorded. optical disk substrate. (2) The optical disk substrate according to claim 1, wherein the identification mark is concave. (3) The optical disk substrate according to claim 1, wherein the material of the optical disk substrate is glass.
JP11886587U 1987-08-04 1987-08-04 Pending JPS6424585U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11886587U JPS6424585U (en) 1987-08-04 1987-08-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11886587U JPS6424585U (en) 1987-08-04 1987-08-04

Publications (1)

Publication Number Publication Date
JPS6424585U true JPS6424585U (en) 1989-02-09

Family

ID=31363587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11886587U Pending JPS6424585U (en) 1987-08-04 1987-08-04

Country Status (1)

Country Link
JP (1) JPS6424585U (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS613382A (en) * 1984-06-16 1986-01-09 Victor Co Of Japan Ltd Original disk of information recording medium disk
JPS61258384A (en) * 1985-05-10 1986-11-15 Toshiba Corp Optical disk medium
JPS6245786B2 (en) * 1981-02-26 1987-09-29 Hitachi Ltd
JPS63121187A (en) * 1986-11-10 1988-05-25 Hitachi Maxell Ltd Optical information recording disk

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6245786B2 (en) * 1981-02-26 1987-09-29 Hitachi Ltd
JPS613382A (en) * 1984-06-16 1986-01-09 Victor Co Of Japan Ltd Original disk of information recording medium disk
JPS61258384A (en) * 1985-05-10 1986-11-15 Toshiba Corp Optical disk medium
JPS63121187A (en) * 1986-11-10 1988-05-25 Hitachi Maxell Ltd Optical information recording disk

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