Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9494213 | Chain | — | 2016-11-15 |
| 9046150 | Silent chain | Masatoshi Sonoda, Naoki Okada, Yoshinori Tsujino | 2015-06-02 |
| 8602932 | Chain | Masatoshi Sonoda, Takayuki Morimoto | 2013-12-10 |