Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5336584 | Optical recording medium | Shuichi Yanagisawa, Takashi Chuman, Yasushi Araki, Fumio Matsui | 1994-08-09 |
| 5328741 | Optical recording medium | Shuichi Yanagisawa, Satoru Tanaka, Takashi Chuman, Yasushi Araki, Fumio Matsui | 1994-07-12 |
| 5328802 | Optical recording medium | Shuichi Yanagisawa, Takashi Chuman, Yasushi Araki, Fumio Matsui | 1994-07-12 |
| 5326679 | Recording medium | Shuichi Yanagisawa, Atsushi Yoshizawa, Satoru Tanaka, Makoto Okano, Takashi Chuman +3 more | 1994-07-05 |