Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5724141 | Distance measuring apparatus | — | 1998-03-03 |
| 5706140 | Optical distance measuring equipment | Hiroshi Takeda, Sigeru Ryugo, Hidefumi Ito, Takashi Yoshimura | 1998-01-06 |
| 5627636 | Distance measuring equipment | Katsuyuki Fukuda | 1997-05-06 |
| 5459460 | Collision warning system | — | 1995-10-17 |