Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4896313 | Optical information recording medium utilizing pits having a sharp front face and method of manufacturing the same | Atsuki Hirose | 1990-01-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4896313 | Optical information recording medium utilizing pits having a sharp front face and method of manufacturing the same | Atsuki Hirose | 1990-01-23 |