Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11199226 | Rolling bearing | Shigeo Kamamoto, Yuki Shishihara | 2021-12-14 |
| 11149787 | Thrust roller bearing | Yuki Shishihara, Shigeo Kamamoto | 2021-10-19 |
| 10948012 | Thrust roller bearing | Yuki Shishihara, Shigeo Kamamoto | 2021-03-16 |
| 10916455 | Flattening method and flattening apparatus | Kazuto Yamauchi, Yasuhisa Sano, Hideyuki Hara, Keita Yagi | 2021-02-09 |