Toshihiro Nishikawa
32Patents
11h-index
34Co-inventors
75Inventor score
Filing activity: May 10, 1985 → Oct 23, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4952491A | Photographic light-sensitive material and method of developing the same | Physics | 48 | Expired |
| US4960689A | Color photographic light-sensitive material and method of developing the same | Physics | 31 | Expired |
| US4618573A | Silver halide color photographic material | Physics | 27 | Expired |
| US4865962A | Photographic light-sensitive material and method of developing the same | Physics | 24 | Expired |
| US6102328A | Method for reducing wave resistance in airplane | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5455146A | Method for forming color image | Physics | 19 | Expired |
| US4623612A | Method of developing silver halide photographic light-sensitive materials | Physics | 18 | Expired |
| US4820624A | Corner development type silver halide photographic emulsions | Physics | 17 | Expired |
| US5104775A | Method for processing silver halide color photographic light sensitive materials | Physics | 12 | Expired |
| US4695529A | Image-forming process | Physics | 12 | Expired |
| US5399475A | Silver halide photographic materials and method producing thereof | Physics | 11 | Expired |
| US4798784A | Method for processing a silver halide color photographic material including a hydrolyzable type dir coupler including bleaching and bleach-fixing processing | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4725530A | Silver halide color photographic material | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4952490A | Photographic light-sensitive material and method of developing the same | Physics | 10 | Expired |
| US5605786A | Silver halide color photographic light sensitive material containing a naphtholic coupler which contains an electron transfer agent group | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4957853A | Silver halide color photographic light-sensitive material containing cyan coupler and method for use thereof | Physics | 9 | Expired |
| US4857442A | Method for the processing of silver halide color photographic materials | Physics | 8 | Expired |
| US4804617A | Processing method for silver halide color photosensitive materials with a desilverization step including both a bleaching bath and a bleach fixing bath | Physics | 8 | Expired |
| US6007977A | Silver halide photographic light-sensitive material | Physics | 7 | Expired |
| US4762774A | Method for color image formation comprising a rapid desilvering process | Physics | 5 | Expired |
| US4863841A | Silver halide color photographic material | Physics | 5 | Expired |
| US5290673A | Silver halide photographic light-sensitive material | Physics | 4 | Expired |
| US5518844A | Method of processing a photosensitive material and photosensitive material processor | Physics | 4 | Expired |
| US6720134B2 | Silver halide photographic emulsion and silver halide photographic lightsensitive material using the same | Physics | 3 | Expired |
| US5716768A | Silver halide color photographic material | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.