Yasuhiro Fujita
88Patents
13h-index
121Co-inventors
87Inventor score
Filing activity: Jan 22, 1975 → Dec 10, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6107358A | Water-absorbent resin and method for production thereof | Chemistry; Metallurgy | 72 | Expired |
| US6207796A | Production process for hydrophilic polymer | Chemistry; Metallurgy | 42 | Expired |
| US5975808A | Pile or pile assembly for engineering and construction works | Fixed Constructions | 38 | Expired |
| US5216341A | Windshield wiper control apparatus | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6906159B2 | Water-absorbent resin, hydropolymer, process for producing them, and uses of them | Chemistry; Metallurgy | 29 | Expired |
| US4987296A | Rain sensor with improved avoidance of reflected light | Physics | 27 | Expired |
| US5117168A | Windshield wiper control apparatus | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6207772A | Method for production of cross-linked polymer | Chemistry; Metallurgy | 26 | Expired |
| US7091253B2 | Water-absorbent resin, hydropolymer, process for producing them, and uses of them | Chemistry; Metallurgy | 24 | Expired |
| US6194531A | Method for production of cross-linked polymer | Chemistry; Metallurgy | 21 | Expired |
| US4620655A | Apparatus for supplying taped parts | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7312278B2 | Water-absorbing agent and production process therefor, and sanitary material | Performing Operations; Transporting | 16 | Expired |
| US7265190B2 | Process and apparatus for production of water-absorbent resin | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6599989B2 | Water-absorbent agents containing polycarboxylic amine chelating agents | Physics | 13 | Expired |
| US7736095B2 | Pile assembly for engineering and construction works | Fixed Constructions | 13 | Expired |
| US5813943A | Control system for automatic transmission | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5371931A | Production system for molded and pressed parts | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7032433B2 | Sensor, sensor producing method, and assembly of separator and urging member | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4449293A | Coil winding and inserting machine | Emerging Cross-Sectional Technologies | 8 | Expired |
| US10479271B2 | Vehicle notification device and vehicle notification method | Performing Operations; Transporting | 8 | Active |
| US3989926A | Device for preventing overheating of electrophotographic fixing device | Physics | 8 | Expired |
| US7424819B2 | Gas sensor | Physics | 7 | Active |
| US7622535B2 | Method for continuous production of water-absorbent resin | Chemistry; Metallurgy | 7 | Expired |
| US6679099B2 | Gas sensor | Physics | 7 | Expired |
| US6964998B2 | Water-absorbing agent and its production process and use | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.