Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663843 | Optical system driving apparatus | Tetsuo Ikegame | 1997-09-02 |
| 5598389 | Signal detector for an optical information reproducing apparatus | Junichi Nakano, Nobuhide Matsubayashi | 1997-01-28 |