Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6437480 | Apparatus and method for driving an ultrasonic motor to reduce rise response time | — | 2002-08-20 |
| 6091179 | Vibration actuator drive device and method of use | Michihiro Tobe, Tadao Takagi | 2000-07-18 |
| 5990597 | Ultrasonic motor having high drive efficiency | Tadao Takagi | 1999-11-23 |
| 5912525 | Vibration actuator | Mina Kobayashi | 1999-06-15 |
| 5859490 | Vibration actuator and driving apparatus | — | 1999-01-12 |
| 5744897 | Driving control device for vibration wave motor | Tadao Takagi, Ryoichi Suganuma | 1998-04-28 |
| 5710491 | Driving control device for vibration wave motor | Tadao Takagi, Ryoichi Suganuma | 1998-01-20 |
| 5686776 | Ultrasonic motor having high drive efficiency | Tadao Takagi | 1997-11-11 |
| 5661360 | Ultrasonic motor having high drive efficiency | Tadao Takagi | 1997-08-26 |
| 5654604 | Vibration motor having improved adhesive layer between electromechanical conversion element and elastic body | Takatoshi Ashizawa, Ryoichi Suganuma, Tomohiko Yokoo | 1997-08-05 |
| 5625247 | Vibration driven motor | Tsuneo Watanabe, Tadao Takagi, Ryouichi Suganuma, Kunihiro Fukino | 1997-04-29 |
| 5508581 | Ultrasonic motor with a stator and a mobile element made of improved materials | Takatoshi Ashizawa, Ryoichi Suganuma | 1996-04-16 |
| 5446331 | Ultrasonic wave motor | Tsuneo Watanabe, Tadao Takagi, Ryouichi Suganuma, Kunihiro Fukino | 1995-08-29 |
| 5336958 | Ultrasonic motor unit | Ryoichi Suganuma | 1994-08-09 |
| 5333029 | Camera capable of detecting eye-gaze | Shigeyuki Uchiyama, Tadao Takagi, Yuji Katano, Shigemasa Sato, Toshimi Watanabe | 1994-07-26 |
| 5204577 | Ultrasonic motor improved in driving efficiency | Tsuneo Watanabe, Tadao Takagi | 1993-04-20 |
| 5066884 | Ultrasonic motor having high drive efficiency | Tadao Takagi, Shigehisa Nemoto | 1991-11-19 |