Yoshihiro Fujita
87Patents
13h-index
136Co-inventors
87Inventor score
Filing activity: Sep 12, 1975 → Jun 21, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4839729A | Solid state image sensor | Electricity | 49 | Expired |
| US4079388A | Illumination detecting and recording method and device therefor | Physics | 46 | Expired |
| USD588059S1 | Charging unit for robot | General | 38 | Expired |
| US4998800A | Optical low pass filter | Physics | 35 | Expired |
| US5334493A | Photographic processing solution having a stabilizing ability and a method for processing a silver halide color photographic light-sensitive material | Physics | 32 | Expired |
| US5717308A | Electric-supply equipment for camera | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4041308A | Automatic control device for correcting filters | Physics | 25 | Expired |
| US4887109A | Viewfinder for a camera with changeable focal length | Physics | 25 | Expired |
| US5686809A | Combination solar and external battery powered camera battery charger | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5270148A | Processing solution for silver halide color photographic materials and method for processing the materials with the processing solution | Physics | 18 | Expired |
| US4963474A | Method for processing silver halide color photographic material | Physics | 14 | Expired |
| US5034308A | Method for processing silver halide photosensitive material including the replenishing of washing water containing a chelating agent and a controlled amount of calcium and magnesium compounds | Physics | 13 | Expired |
| US4857950A | Wash water reservoiring method and apparatus therefore | Chemistry; Metallurgy | 13 | Expired |
| US5147765A | Process comprising bleaching, bleach-fix and fixing silver halide color photographic material | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5069530A | Solid state image pick-up apparatus | Electricity | 12 | Expired |
| US5994894A | Testboard for IC tester | Physics | 12 | Expired |
| US5296339A | Method for processing silver halide color photographic material | Physics | 11 | Expired |
| US5221597A | Method for processing silver halide color photographic materials | Physics | 11 | Expired |
| US5323530A | Apparatus for assembling rotors | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6117601A | Method of determining and correcting processing state of photosensitive material based on mahalanobis calculation | Physics | 10 | Expired |
| US5011763A | Method for processing a silver halide color photographic material | Physics | 10 | Expired |
| US4853318A | Process for processing silver halide color photographic material using a developer comprising substantially no benzyl alcohol | Physics | 10 | Expired |
| US6084009A | Powder paint compositions | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5840352A | Fresnel lens manufacturing apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4237206A | Photographic paper base with seperate reflective layer | Emerging Cross-Sectional Technologies | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.