Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329506 | Information retrieving system | Kenichi Kitta, Yatani Ishikawa | 1994-07-12 |
| 5043965 | Optical apparatus for optical information recording medium | Tamotsu Iida, Hiroshi Nagate, Toshiaki Taii, Toyoyuki Nunomura | 1991-08-27 |
| 4896313 | Optical information recording medium utilizing pits having a sharp front face and method of manufacturing the same | Tamotu Iida | 1990-01-23 |