Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10641396 | Seal ring and sealing structure | — | 2020-05-05 |
| 10634254 | Seal ring | Koji Watanabe | 2020-04-28 |
| D876594 | Seal for shafts | Koji Watanabe | 2020-02-25 |
| 10359114 | Sealing device | Koji Watanabe | 2019-07-23 |
| 9388705 | Sealing device | Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta +5 more | 2016-07-12 |
| 9309973 | Sealing device and sealing structure | Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta +5 more | 2016-04-12 |
| 9157530 | Sealing device and sealing structure | Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta +5 more | 2015-10-13 |
| 8720901 | Seal ring | Yosuke Kondo, Iwao Taira | 2014-05-13 |