Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7837017 | High-friction fluid seal and shock absorber | Chikashi Imoto, Masatami Tsukamoto | 2010-11-23 |
| 7793584 | Check valve structure of hydraulic damper | Tomoharu Murakami, Chikatoshi Abe, Chikashi Imoto, Hiroyuki Emoto | 2010-09-14 |