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
Links
- 239000000758 substrate Substances 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims 2
- 239000011521 glass Substances 0.000 claims 1
Description
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)
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.
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)
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 |
-
1987
- 1987-08-04 JP JP11886587U patent/JPS6424585U/ja active Pending
Patent Citations (4)
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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