Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326679 | Recording medium | Shuichi Yanagisawa, Atsushi Yoshizawa, Tatsuro Sakai, Satoru Tanaka, Takashi Chuman +3 more | 1994-07-05 |
| 5316899 | Optical recording medium | Toshiyuki Miyadera, Fumio Matsui | 1994-05-31 |
| 5295126 | Information recording apparatus for recordable optical disc | Shuichi Yanagisawa | 1994-03-15 |