Naoyasu Deguchi
28Patents
10h-index
36Co-inventors
67Inventor score
Filing activity: Dec 17, 1982 → Jun 18, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4474872A | Method for producing photographic emulsion | Physics | 31 | Expired |
| US4618571A | Silver halide color photographic light-sensitive material | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4720451A | Silver halide color reversal light-sensitive material | Physics | 23 | Expired |
| US4554245A | Color reversal light-sensitive materials | Physics | 22 | Expired |
| US4740454A | Silver halide photographic material | Physics | 16 | Expired |
| US5024925A | Method of forming color image from a color reversal photographic material comprising a specified iodide content and spectral distribution | Physics | 13 | Expired |
| US4746599A | Silver halide color photosensitive materials | Physics | 12 | Expired |
| US4886738A | Silver halide color photographic material | Physics | 12 | Expired |
| US5262287A | Silver halide color reversal photographic material capable of providing interimage effect | Physics | 10 | Expired |
| US4828972A | Method for manufacturing silver halide emulsion | Physics | 10 | Expired |
| US4764456A | Silver halide color photographic material | Physics | 9 | Expired |
| US5081009A | Process for preparing an internal latent image silver halide emulsion | Physics | 9 | Expired |
| US4788132A | Silver halide color reversal photographic material | Physics | 8 | Expired |
| US5213942A | Silver halide color reversal photographic maerial having silver halide emulsions with different grain diameters | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4772546A | Silver halide photographic material with high interimage effects | Physics | 6 | Expired |
| US4497893A | Silver halide color reversal photographic material | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4994358A | Direct positive color light-sensitive material | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5081008A | Silver halide color photographic light-sensitive material containing a yellow filter layer | Physics | 5 | Expired |
| US4968592A | Direct positive image forming method comprising developing with a combination of nucleating agents | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4948712A | Direct positive photographic materials and a method of forming direct positive images | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5104784A | Direct positive photosensitive material | Physics | 4 | Expired |
| US4696894A | Silver halide photographic materials containing 1,3,4-thiadiazole derivatives having a polar substituent | Physics | 3 | Expired |
| USH830H | Silver halide color photographic material | General | 3 | Active |
| US4558000A | Color reversal light-sensitive material | Physics | 2 | Expired |
| US4568635A | Silver halide light-sensitive material | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.