Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8136493 | Lash adjuster | Katsuhisa Yamaguchi, Eiji Maeno | 2012-03-20 |
| 7654375 | Rotation transmission device | Koichi Okada, Takahide Saito, Tetsuya Yamamoto | 2010-02-02 |
| 7086513 | Rotation transmission device | — | 2006-08-08 |