JPS4917125A - - Google Patents
Info
- Publication number
- JPS4917125A JPS4917125A JP47054947A JP5494772A JPS4917125A JP S4917125 A JPS4917125 A JP S4917125A JP 47054947 A JP47054947 A JP 47054947A JP 5494772 A JP5494772 A JP 5494772A JP S4917125 A JPS4917125 A JP S4917125A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5494772A JPS532321B2 (https=) | 1972-06-02 | 1972-06-02 | |
| US332482A US3902010A (en) | 1972-02-15 | 1973-02-14 | Information recording device with record having layers with different intensity sensitivity |
| DE2307488A DE2307488C3 (de) | 1972-02-15 | 1973-02-15 | I nf ormationsspeichereinrichtung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5494772A JPS532321B2 (https=) | 1972-06-02 | 1972-06-02 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5286877A Division JPS52129406A (en) | 1977-05-09 | 1977-05-09 | Record disc and preparation of said record disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4917125A true JPS4917125A (https=) | 1974-02-15 |
| JPS532321B2 JPS532321B2 (https=) | 1978-01-27 |
Family
ID=12984836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5494772A Expired JPS532321B2 (https=) | 1972-02-15 | 1972-06-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS532321B2 (https=) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51134633A (en) * | 1975-05-19 | 1976-11-22 | Canon Inc | Recording medium |
| JPS52128611U (https=) * | 1976-03-25 | 1977-09-30 | ||
| JPS52162213U (https=) * | 1976-06-01 | 1977-12-08 |
-
1972
- 1972-06-02 JP JP5494772A patent/JPS532321B2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51134633A (en) * | 1975-05-19 | 1976-11-22 | Canon Inc | Recording medium |
| JPS52128611U (https=) * | 1976-03-25 | 1977-09-30 | ||
| JPS52162213U (https=) * | 1976-06-01 | 1977-12-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS532321B2 (https=) | 1978-01-27 |