Masaharu Ushihara
14Patents
6h-index
28Co-inventors
66Inventor score
Filing activity: Dec 14, 1981 → Mar 5, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5854427A | Angular velocity sensor | Physics | 23 | Expired |
| US4797690A | Ribbon feed mechanism | Performing Operations; Transporting | 22 | Expired |
| US5581032A | Angular velocity sensor device | Physics | 16 | Expired |
| US5447066A | Angular velocity sensor having a tuning fork construction and its method of manufacture | Physics | 11 | Expired |
| US6470580B1 | Tilt sensor | Physics | 11 | Expired |
| US6399941B1 | Inclination angle sensor | Physics | 10 | Expired |
| US6499220B2 | Inclination sensor | Physics | 6 | Expired |
| US7258027B2 | Device for detecting absolute rotation angle and torque | Physics | 6 | Expired |
| US5723788A | Angular velocity sensor having a balanced tuning fork structure | Physics | 5 | Expired |
| US5445025A | Angular velocity sensor having a balanced tuning fork structure and the method of manufacture | Physics | 4 | Expired |
| US6987384B2 | Device for detecting rotation angle and torque | Physics | 4 | Expired |
| US7202659B2 | Rotation angle-detecting device | Physics | 3 | Expired |
| US4401998A | Magnetic fluid recording apparatus | Performing Operations; Transporting | 0 | Expired |
| US7321230B2 | Rotation angle-detecting device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.