Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE49737 | Ball bearing | Takanori Tanaka, Youichi Matsumoto | 2023-11-28 |
| 9567545 | Grease composition for EV/HEV driving motor bearing and EV/HEV driving motor bearing | Hironori Mizuki, Kenichi Iso, Kazunori Nakagawa, Yutaka Imai, Ryo Aida | 2017-02-14 |
| 8777489 | Ball bearing and hybrid vehicle transmission | Takanori Tanaka, Kinji Yukawa, Youichi Matsumoto | 2014-07-15 |
| 8523450 | Ball bearing and hybrid vehicle transmission | Takanori Tanaka, Kinji Yukawa, Youichi Matsumoto | 2013-09-03 |
| 4639224 | Multiple projector planetarium drive system | Kenji Shiba | 1987-01-27 |