Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10508692 | Propeller shaft and propeller shaft production method | Hiromichi Komai | 2019-12-17 |
| 10422388 | Propeller shaft | Kenichi Sugiyama, Daiki TSUTSUMI | 2019-09-24 |
| 10352368 | Propeller shaft and constant-velocity joint used in said propeller shaft | Kenichi Sugiyama, Toshiyuki Masuda, Hiromichi Komai | 2019-07-16 |