Eiji Takahashi
222Patents
17h-index
328Co-inventors
89Inventor score
Filing activity: Aug 12, 1974 → Aug 31, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6885771B2 | Image recognition method and apparatus utilizing edge detection based on magnitudes of color vectors expressing color attributes of respective pixels of color image | Physics | 123 | Expired |
| US6665439B1 | Image recognition method and apparatus utilizing edge detection based on magnitudes of color vectors expressing color attributes of respective pixels of color image | Physics | 54 | Expired |
| US5451103A | Projector system | Electricity | 52 | Expired |
| US5943437A | Method and apparatus for classifying a defect on a semiconductor wafer | Electricity | 47 | Expired |
| US5632156A | Automotive air conditioning system | Mechanical Engineering; Lighting; Heating | 45 | Expired |
| US4927979A | Process for the preparation of p-ethylphenol | Performing Operations; Transporting | 42 | Expired |
| US4423856A | Controlled cooling apparatus for hot rolled wire rods | Performing Operations; Transporting | 34 | Expired |
| US5113108A | Hermetically sealed electrostrictive actuator | Electricity | 31 | Expired |
| US4927885A | Polypropylene resin compositions | Chemistry; Metallurgy | 30 | Expired |
| US5934094A | Vehicle air conditioning system with expansion valve control during high pressure cycle conditions | Emerging Cross-Sectional Technologies | 26 | Expired |
| US7438043B2 | Internal combustion engine with auxiliary combustion chamber | Emerging Cross-Sectional Technologies | 24 | Active |
| US5392935A | Control system for cable crane | Fixed Constructions | 23 | Expired |
| US6627858B2 | Hot-water supply system | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US6661134B2 | Brushless motor | Electricity | 20 | Expired |
| US7584739B2 | Internal combustion engine with a precombustion chamber | Emerging Cross-Sectional Technologies | 20 | Active |
| US7079758B2 | PWM driving apparatus | Electricity | 19 | Expired |
| US5304692A | Catalyst composition for disproportionation of olefins and process for disproportionation of olefins using the same | Chemistry; Metallurgy | 17 | Expired |
| US6814046B1 | Direct fuel injection engine | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4801037A | Opening/closing device for a mouth of a container and process for making the same | Performing Operations; Transporting | 17 | Expired |
| US6093753A | Sulfonium salt compounds, polymerization initiator, curable composition and curing method | Physics | 17 | Expired |
| US4024076A | Process for producing granular sulfurized material, granular carbon or granular activated carbon | Chemistry; Metallurgy | 14 | Expired |
| US7263967B2 | Internal combustion engine with auxiliary combustion chamber | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5803355A | Control system of automotive air conditioning device | Performing Operations; Transporting | 12 | Expired |
| US7346051B2 | Slave device, master device and stacked device | Electricity | 12 | Expired |
| US7216623B2 | Internal combustion engine with auxiliary combustion chamber | Mechanical Engineering; Lighting; Heating | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.