Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671037 | Optical object detecting apparatus designed to selectively shift light emitting window | Ryoichi Sugawara | 2003-12-30 |
| 6657705 | Distance measuring apparatus | Naoki Sano, Ryoichi Sugawara | 2003-12-02 |
| 5672448 | Multi-exposure system for hologram | Satoshi Koike, Teiyuu Kimura, Hiroshi Ando, Hiroyuki Tatebayashi | 1997-09-30 |