Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11092193 | Ball bearing, and machine tool spindle device | Kyohei Matsunaga | 2021-08-17 |
| 10746227 | Ball bearing and main shaft device for machine tool | Ryosuke Amano, Kyohei Matsunaga | 2020-08-18 |
| 10690180 | Ball bearing and main shaft device for machine tool | Ryosuke Amano, Kyohei Matsunaga | 2020-06-23 |
| 10670078 | Ball bearing and main shaft device for machine tool | Ryosuke Amano, Kyohei Matsunaga | 2020-06-02 |
| 10634186 | Ball bearing, spindle device, and machine tool | Kyohei Matsunaga | 2020-04-28 |
| 10302128 | Combined ball bearing, main spindle device, and machine tool | Shoichiro Oguri | 2019-05-28 |
| 10184515 | Anti-friction bearing | Kyohei Matsunaga | 2019-01-22 |
| 9360046 | Multiple row combination ball bearing | Shin Okamoto | 2016-06-07 |
| 8985859 | Cage and rolling bearing | Kenta Kenmochi, Atsushi Minakami | 2015-03-24 |
| 8944693 | Rolling bearing cage and rolling bearing | — | 2015-02-03 |
| 4838712 | Ball bearing and the retainer thereof | Mutsuo Kubo | 1989-06-13 |