Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5117918 | Cultivator blade supporting structure | Tohru Yamada, Sadao Doi, Taizo Yamamoto | 1992-06-02 |
| 4829848 | Energy absorbing apparatus for steering wheel | Hiroaki Shinto, Syuji Nakamura, Terumoto Yamaguchi | 1989-05-16 |