Toyoki Nishijima
39Patents
11h-index
27Co-inventors
75Inventor score
Filing activity: May 12, 1982 → May 20, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5459014A | Method for forming a photographic color image with a photographic material containing a hydroxy-phenyl derivative, using a chloride-containing color developer | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4564590A | Silver halide photographic material | Physics | 25 | Expired |
| US6821584B2 | Ink-jet recording medium | Performing Operations; Transporting | 22 | Expired |
| US4675275A | Silver halide color photographic material of improved reproducibility | Physics | 20 | Expired |
| US4906559A | Light-sensitive silver halide photographic material | Physics | 19 | Expired |
| US5082766A | Silver halide color photographic light-sensitive material | Physics | 15 | Expired |
| US5112728A | Silver halide photographic light-sensitive material | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4731320A | Silver halide photographic material | Physics | 13 | Expired |
| US5091294A | Silver halide color photographic material | Physics | 12 | Expired |
| US5017465A | Light-sensitive silver halide photographic material | Physics | 12 | Expired |
| US4752561A | Light-sensitive silver halide photographic material incorporating metal complex with high quenching constant and an oil soluble dye | Physics | 12 | Expired |
| US4684603A | Light-sensitive silver halide color photographic material | Physics | 11 | Expired |
| US4540653A | Method of improving the light resistance of a dye image | Physics | 11 | Expired |
| US5024932A | Light-sensitive silver halide photographic material | Physics | 9 | Expired |
| US5077188A | Silver halide photographic light-sensitive material | Physics | 9 | Expired |
| US5208140A | Light-sensitive silver halide photographic material prevented in color contamination | Physics | 9 | Expired |
| US4425418A | Liquid developers for electrophotography and developing method using the same | Physics | 9 | Expired |
| US5049482A | Silver halide light-sensitive photographic material forming a dye image of enhanced light fastness | Physics | 8 | Expired |
| US4814262A | Silver halide photographic light-sensitive material to provide dye-image with improved color-fastness to light | Physics | 8 | Expired |
| US4770985A | Silver halide photographic material | Physics | 7 | Expired |
| US5110718A | Silver halide photographic sensitive material | Physics | 6 | Expired |
| US4623616A | Silver halide photographic light-sensitive material | Physics | 6 | Expired |
| US4916050A | Silver halide light-sensitive photographic material | Physics | 6 | Expired |
| US5006454A | Light sensitive silver halide photographic material | Physics | 6 | Expired |
| US4868100A | Silver halide photographic light-sensitive material | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.