Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813234 | Optical pickup device and method of adjusting the same | Mitsuhiro Togashi, Noriyoshi Takeya, Ichiro Morishita | 2004-11-02 |
| 6704152 | Light irradiating device, optical pickup device with the same, method of adjusting light irradiating device | Mitsuhiro Togashi, Noriyoshi Takeya, Ichiro Morishita | 2004-03-09 |
| 5796890 | Bidirectional optically powered signal transmission apparatus | Nobuhiko Tsuji, Yasukazu Sano | 1998-08-18 |
| 5664035 | Bidirectional optically powered signal transmission apparatus | Nobuhiko Tsuji, Yasukazu Sano | 1997-09-02 |
| 5574592 | Rotatable polygon mirror | Yasukazu Sano, Nobuhiko Tsuji, Tetsuya Saito, Tomio Shimizu | 1996-11-12 |