Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5332608 | Information recording medium | Yasushi Araki, Atsushi Yoshizawa, Fumio Matsui | 1994-07-26 |
| 5326679 | Recording medium | Shuichi Yanagisawa, Atsushi Yoshizawa, Tatsuro Sakai, Satoru Tanaka, Makoto Okano +3 more | 1994-07-05 |