Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10871193 | Needle roller thrust bearing | Yuki Shishihara, Shigeo Kamamoto | 2020-12-22 |
| 10767701 | Cage and roller assembly | Shigeo Kamamoto, Yuki Shishihara | 2020-09-08 |
| 10655678 | Cage and roller assembly | Shigeo Kamamoto, Yuki Shishihara | 2020-05-19 |
| 10634191 | Cage and roller assembly | Shigeo Kamamoto, Yuki Shishihara | 2020-04-28 |
| 10584743 | Needle roller thrust bearing | Yuki Shishihara, Shigeo Kamamoto | 2020-03-10 |
| 10539184 | Taper roller bearing | Shigeo Kamamoto, Yuki Shishihara | 2020-01-21 |