Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11308930 | Electronic horn | Katsunori Uchimura, Koichi Toyama, Toshihiko Kawamura, Yoshio Miyata | 2022-04-19 |
| 11145286 | Electronic horn | Katsunori Uchimura, Koichi Toyama, Yoshio Miyata, Tetsuo Momo, Toshihiko Kawamura | 2021-10-12 |
| 4466414 | Supercharged internal combustion engine | Kenji Yamada, Haruyuki Obata | 1984-08-21 |
| 4434775 | Apparatus for controlling pressurized air supply to engines | Kenji Yamada, Haruyuki Obata | 1984-03-06 |
| 4332268 | Atmospheric pressure compensation device | Akira Furukawa, Takehiro Ando | 1982-06-01 |