Kenichi Ao
44Patents
16h-index
58Co-inventors
84Inventor score
Filing activity: Dec 9, 1985 → Apr 17, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5987989A | Semiconductor physical quantity sensor | Physics | 85 | Expired |
| US6065341A | Semiconductor physical quantity sensor with stopper portion | Physics | 74 | Expired |
| US5922212A | Semiconductor sensor having suspended thin-film structure and method for fabricating thin-film structure body | Physics | 73 | Expired |
| US6151966A | Semiconductor dynamical quantity sensor device having electrodes in Rahmen structure | Physics | 67 | Expired |
| US6429506B1 | Semiconductor device produced by dicing | Electricity | 50 | Expired |
| US7250760B2 | Magnetic sensor | Emerging Cross-Sectional Technologies | 48 | Active |
| US4937521A | Current detecting device using ferromagnetic magnetoresistance element | Physics | 39 | Expired |
| US5864064A | Acceleration sensor having coaxially-arranged fixed electrode and movable electrode | Physics | 31 | Expired |
| US5998234A | Method of producing semiconductor device by dicing | Electricity | 30 | Expired |
| US5587343A | Semiconductor sensor method | Physics | 29 | Expired |
| US6448624B1 | Semiconductor acceleration sensor | Electricity | 23 | Expired |
| US4835509A | Noncontact potentiometer | Electricity | 22 | Expired |
| US5551586A | Method for manufacturing an electromagnetic conversion device and a displacement detector which uses an electromagnetic conversion device | Electricity | 20 | Expired |
| US5532910A | Hybrid integrated circuit and process for producing same | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5627397A | Semiconductor acceleration sensor with source and drain regions | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5005064A | Device for detecting magnetism | Electricity | 16 | Expired |
| US5828116A | Semiconductor device with bonded wires | Electricity | 15 | Expired |
| US4754221A | Position detecting apparatus for detecting a signal magnetic field indicative of a desired position | Physics | 15 | Expired |
| US5619050A | Semiconductor acceleration sensor with beam structure | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5869876A | Semiconductor strain sensor | Physics | 14 | Expired |
| US5471084A | Magnetoresistive element and manufacturing method therefor | Electricity | 14 | Expired |
| US5936159A | Semiconductor sensor having multi-layer movable beam structure film | Physics | 12 | Expired |
| US5656936A | Displacement detecting device | Physics | 11 | Expired |
| US7216538B2 | Vibratory angular rate sensor | Physics | 11 | Expired |
| US6150808A | Switching apparatus having magnetoresistive elements for detecting a plurality of manually selected switching position | Electricity | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.