Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666341 | Data detection apparatus | Toshiyuki Shimada, Hiromiti Ishibashi, Hiroyuki Miyachi | 1997-09-09 |
| 5598396 | Optical disk reproducing apparatus | Masaharu Imura, Toshiyuki Shimada | 1997-01-28 |