Takashi Ogawa
241Patents
19h-index
421Co-inventors
89Inventor score
Filing activity: Sep 16, 1976 → Jun 26, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7033972B2 | Catalyst for producing dimethyl ether, method for producing catalyst and method for producing dimethyl ether | Emerging Cross-Sectional Technologies | 78 | Expired |
| US8493296B2 | Method of inspecting defect for electroluminescence display apparatus, defect inspection apparatus, and method of manufacturing electroluminescence display apparatus using defect inspection method and apparatus | Physics | 75 | Active |
| US6361757B1 | Catalyst for manufacturing hydrogen or synthesis gas and manufacturing method of hydrogen or synthesis gas | Emerging Cross-Sectional Technologies | 72 | Expired |
| US7269392B2 | Electric component for communication device and semiconductor device for switching transmission and reception | Electricity | 58 | Expired |
| US8335479B2 | Semiconductor integrated circuit, RF module using the same, and radio communication terminal device using the same | Electricity | 49 | Active |
| USD871438S1 | Display screen with animated graphical user interface | General | 45 | Active |
| US4780826A | Failure judgment system for sensors installed in engine | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4693470A | Auxiliary instrument for stretching and softening exercises | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4895774A | Molten carbonate fuel cell | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4957625A | Ceramic filter modules in series with piston backwash | Performing Operations; Transporting | 29 | Expired |
| US5119071A | Method and apparatus for controlling induction motor for compressor | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US6538404B2 | Motor apparatus | Electricity | 23 | Expired |
| USD873278S1 | Display screen with graphical user interface | General | 23 | Active |
| US6711932B2 | Abnormality diagnosis system and method for oxygen sensor | Physics | 22 | Expired |
| US8568520B2 | CO2 recovery system and CO2 absorption liquid | Emerging Cross-Sectional Technologies | 21 | Active |
| US5134847A | Double air-fuel ratio sensor system in internal combustion engine | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6642689B2 | Control apparatus for power converter | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7234984B2 | Light attenuation in defective pixel in organic EL panel | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4770778A | Hollow fiber semipermeable membrane element and a method of producing the same | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5863602A | Method for capturing gaseous impurities and semiconductor device manufacturing apparatus | Performing Operations; Transporting | 18 | Expired |
| US4872257A | Apparatus for installing bearings on engine components | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5237551A | Apparatus measuring an output of a disk drive | Physics | 18 | Expired |
| US10713952B2 | Road information recognition system and road information recognition method | Physics | 17 | Active |
| US6641204B2 | Molding attachment structure for automobile door | Performing Operations; Transporting | 17 | Expired |
| US4708916A | Molten carbonate fuel cell | Emerging Cross-Sectional Technologies | 17 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.