Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8912949 | Ultra-sensitive system for measuring distance or position | Seiichiro Hirata, Nobuo Nakajima, Shogo Ida | 2014-12-16 |
| 4903212 | GPS/self-contained combination type navigation system | Kazuhiro Yokouchi, Tatsumi Kageyama, Chogo Sekine, Koji Yamada, Makoto Mikuriya +1 more | 1990-02-20 |