Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10520027 | Tapered roller bearing | Shigeo Kamamoto, Yuki Shishihara, Seiji Nakahama | 2019-12-31 |
| 10422382 | Ball bearing | Shigeo Kamamoto, Yuki Shishihara | 2019-09-24 |
| 10408266 | Cage for taper roller bearing and taper roller bearing | Shigeo Kamamoto, Yuki Shishihara | 2019-09-10 |
| 10352358 | Taper roller bearing | Shigeo Kamamoto, Yuki Shishihara, Tomohiko Haruyama | 2019-07-16 |
| 10297475 | Flattening method and flattening apparatus | Kazuto Yamauchi, Yasuhisa Sano, Hideyuki Hara, Keita Yagi | 2019-05-21 |
| 10221891 | Taper roller bearing | Shigeo Kamamoto, Yuki Shishihara | 2019-03-05 |
| 10215233 | Taper roller bearing | Shigeo Kamamoto, Yuki Shishihara | 2019-02-26 |
| 10208795 | Tapered roller bearing | Shigeo Kamamoto, Yuki Shishihara | 2019-02-19 |
| 10180161 | Tapered roller bearing | Yuki Shishihara, Shigeo Kamamoto | 2019-01-15 |
| 10167897 | Tapered roller bearing | Yuki Shishihara, Shigeo Kamamoto, Seiji Nakahama | 2019-01-01 |