Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7367533 | Point switching device | Takashi Yamaguchi | 2008-05-06 |
| 7162334 | Remote control system and transmitter and drive for the same | Takashi Yamaguchi | 2007-01-09 |
| 6970096 | Transmitter used for remote-control system | Akihiko Nagata, Takashi Yamaguchi | 2005-11-29 |
| 5716275 | Running model for a race game machine | Isao Uehara | 1998-02-10 |
| 5649863 | Running model for a race game machine | Isao Uehara | 1997-07-22 |