JPS61174093U - - Google Patents
Info
- Publication number
- JPS61174093U JPS61174093U JP1985057200U JP5720085U JPS61174093U JP S61174093 U JPS61174093 U JP S61174093U JP 1985057200 U JP1985057200 U JP 1985057200U JP 5720085 U JP5720085 U JP 5720085U JP S61174093 U JPS61174093 U JP S61174093U
- Authority
- JP
- Japan
- Prior art keywords
- optical recording
- disk
- protrusions
- parts
- area
- 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 9
- 239000000758 substrate Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 2
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985057200U JPS61174093U (is) | 1985-04-17 | 1985-04-17 | |
EP86104268A EP0199136B1 (en) | 1985-04-17 | 1986-03-27 | Optical recording disc |
DE8686104268T DE3686081T2 (de) | 1985-04-17 | 1986-03-27 | Optische aufnahmeplatte. |
US06/845,636 US4739345A (en) | 1985-04-17 | 1986-03-28 | Optical recording disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985057200U JPS61174093U (is) | 1985-04-17 | 1985-04-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61174093U true JPS61174093U (is) | 1986-10-29 |
Family
ID=30581507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985057200U Pending JPS61174093U (is) | 1985-04-17 | 1985-04-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61174093U (is) |
-
1985
- 1985-04-17 JP JP1985057200U patent/JPS61174093U/ja active Pending