Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7712174 | Rolling driving actuator and power toothbrush using the same | Hiroaki Shimizu, Ryo Motohashi, Hidekazu Yabuuchi, Takahiro Nishinaka, Katsuhiro Hirata | 2010-05-11 |
| 7443058 | Actuator capable of reciprocal linear driving and rolling driving and power toothbrush using the same | Hiroaki Shimizu, Ryo Motohashi, Hidekazu Yabuuchi, Takahiro Nishinaka, Katsuhiro Hirata | 2008-10-28 |
| 7218018 | Actuator | Katsuhiro Hirata, Yoshio Mitsutake, Tomohiro Ota, Ryo Motohashi, Tomohiro Kunita +3 more | 2007-05-15 |