Hideaki Takahashi
586Patents
25h-index
476Co-inventors
93Inventor score
Filing activity: Apr 20, 1978 → Jan 25, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4993386A | Operation control system for internal combustion engine | Emerging Cross-Sectional Technologies | 138 | Expired |
| US6237330A | Exhaust purification device for internal combustion engine | Emerging Cross-Sectional Technologies | 116 | Expired |
| US5455497A | Legged mobile robot and a system for controlling the same | Performing Operations; Transporting | 87 | Expired |
| US6341487B1 | Catalyst temperature control device and method of internal combustion engine | Emerging Cross-Sectional Technologies | 80 | Expired |
| US5903848A | Method of and apparatus for dynamic channel allocation | Electricity | 74 | Expired |
| US5416393A | Legged mobile robot foot structure | Performing Operations; Transporting | 67 | Expired |
| US4788665A | Semiconductor memory | Physics | 65 | Expired |
| USD705184S1 | Semiconductor module | General | 63 | Active |
| US6679050B1 | Exhaust emission control device for internal combustion engine | Emerging Cross-Sectional Technologies | 59 | Expired |
| US5912886A | Digital mobile communication system capable of establishing mutual synchronization among a plurality of radio base stations | Electricity | 57 | Expired |
| USD410476S | Robot | General | 49 | Expired |
| US4510036A | Limiting electric current type oxygen sensor with heater and limiting electric current type oxygen concentration detecting device using the same | Physics | 42 | Expired |
| US5787358A | Dynamic channel allocation system capable of realizing channel allocation without spoiling advantage of inheritance of a past history | Electricity | 42 | Expired |
| US5086882A | Elevator apparatus provided with guiding device used for preventing passenger cage vibration | Performing Operations; Transporting | 41 | Expired |
| US6233923A | Exhaust emission control device of internal combustion engine | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4500412A | Oxygen sensor with heater | Physics | 38 | Expired |
| US5019482A | Polymer/oxime ester/coumarin compound photosensitive composition | Physics | 37 | Expired |
| US4574264A | Thin film oxygen sensor with microheater | Physics | 36 | Expired |
| US5155701A | Semiconductor integrated circuit device and method of testing the same | Physics | 36 | Expired |
| US7385323B2 | Armature of rotary electrical device | Electricity | 34 | Expired |
| US4524264A | Temperature control apparatus | Physics | 32 | Expired |
| US6216450A | Exhaust emission control system for internal combustion engine | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5136546A | Semiconductor memory | Physics | 28 | Expired |
| US5602837A | Multiplex system for a personal handy phone system | Electricity | 28 | Expired |
| US6640160B2 | Biped ambulatory robot | Performing Operations; Transporting | 26 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.