Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7016656 | Wireless terminal for mobile unit | Tadamasa Yamanaka, Koji Sakuma | 2006-03-21 |
| 6900723 | Anti-theft system for vehicles | Tadamasa Yamanaka, Koji Sakuma | 2005-05-31 |
| 6828936 | Navigation apparatus for mobile vehicle and navigation communication system | Koji Sakuma, Tadamasa Yamanaka | 2004-12-07 |
| 6792262 | Mobile system and mobile management system | Tadamasa Yamanaka, Koji Sakuma | 2004-09-14 |
| 6650970 | Information providing apparatus for engine-equipped mobile body | Tadamasa Yamanaka, Koji Sakuma | 2003-11-18 |
| 5317558 | Electronic volume varying apparatus restricted by muting mode | Heihachiro Yagami, Kazuhiro Kimizuka | 1994-05-31 |
| 5243475 | Apparatus for controlling open/close drive of a lid for a recording medium player | Yoichi Yamazaki | 1993-09-07 |