Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862398 | Correcting method and correcting errors in a terrestrial magnetism heading sensor | Toshiyuki Shimizu, Osamu Shimizu, Kunihiko Mitoh, Yasuhiro Honoki | 1989-08-29 |
| 4807127 | Vehicle location detecting system | Osamu Shimizu, Toshiyuki Shimizu, Kunihiko Mitoh | 1989-02-21 |