Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5844879 | Optical head including ring-shaped light blocking or light non-converging portion | Hideji Morita | 1998-12-01 |
| 5790506 | Optical recording and reproducing device | Hideji Morita | 1998-08-04 |