Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8311735 | Navigation system | Hidekazu Arita, Shigeru Tateishi | 2012-11-13 |
| 6411894 | Navigation device | Takeyoshi Yamamoto | 2002-06-25 |
| 4557711 | Phase control device | Yoshihiro Yamanashi, Minoru Okuma, Toshio Nishihara | 1985-12-10 |