Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12279997 | Wheelchair restraint mechanism | Tokuyuki Nishikawa, Keisuke Toda, Katsuhito Yamauchi, Jacob Richter, Chandra Jinka +2 more | 2025-04-22 |
| 12274651 | Wheelchair restraint apparatus | Tokuyuki Nishikawa, Keisuke Toda, Katsuhito Yamauchi, Jacob Richter, Chandra Jinka +2 more | 2025-04-15 |
| 7717512 | Seat backs for vehicular seats | Dan Wissner, Mike Hard, Katsuhito Yamauchi, Yukihide Hamajima, Satoshi NONOYAMA +1 more | 2010-05-18 |
| 7575278 | Seat backs for vehicular seats | Dan Wissner, Mike Hard, Katsuhito Yamauchi, Yukihide Hamajima, Satoshi NONOYAMA +1 more | 2009-08-18 |