Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9810263 | Retainer segment for a roller bearing for supporting a main shaft of a wind-power generator | Tatsuya Omoto, Eiichi Nakamizo | 2017-11-07 |
| 9732734 | Roller bearing, retainer segment, spacer and main shaft support structure of wind-power generator | Tatsuya Omoto, Shoichi Hioki, Mitsuo Sasabe, Eiichi Nakamizo | 2017-08-15 |
| 9664231 | Roller bearing, retainer segment of roller bearing for supporting main shaft of wind-power generator | Tatsuya Omoto, Eiichi Nakamizo | 2017-05-30 |