Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5031104 | Adaptive in-vehicle route guidance system | Takeo Ikeda, Masaaki Yoshii, Youichi Doi | 1991-07-09 |
| 4862398 | Correcting method and correcting errors in a terrestrial magnetism heading sensor | Toshiyuki Shimizu, Osamu Shimizu, Kenji Tenmoku, Yasuhiro Honoki | 1989-08-29 |
| 4807127 | Vehicle location detecting system | Kenji Tenmoku, Osamu Shimizu, Toshiyuki Shimizu | 1989-02-21 |