Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5602824 | Optical disk capable of recording information on both land and groove tracks | Yuwa Ishii | 1997-02-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5602824 | Optical disk capable of recording information on both land and groove tracks | Yuwa Ishii | 1997-02-11 |