Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692483 | Ignition coil used for an internal combustion engine | Junichi Wada, Akiyoshi Yamamoto | 1997-12-02 |
| 5642338 | Information recording medium and apparatus and method for recording and reproducing information | Yoshihisa Fukushima, Yasushi Azumatani, Hiroshi Hamasaka | 1997-06-24 |
| 5596564 | Information recording medium and apparatus and method for recording and reproducing information | Yoshihisa Fukushima, Yasushi Azumatani, Hiroshi Hamasaka | 1997-01-21 |