Keizo Kimura
69Patents
8h-index
58Co-inventors
81Inventor score
Filing activity: May 21, 1984 → Mar 28, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6821645B2 | Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex | Emerging Cross-Sectional Technologies | 70 | Expired |
| US7238437B2 | Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6613313B2 | Aniline compound-containing hair dye composition and method of dyeing hair | Human Necessities | 23 | Expired |
| US4717650A | Silver halide photographic emulsion | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5994546A | 4-(N,N-dialklylamino)aniline compounds, photographic processing composition containing the same and color image-forming method | Chemistry; Metallurgy | 12 | Expired |
| US6632594B2 | Photographic processing composition containing a diaminostilbene derivative and image forming method using the same | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4513081A | Silver halide photographic emulsion | Physics | 8 | Expired |
| US6780529B2 | Heterocyclic compound and light-emitting device using same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6605420B2 | Photographic processing composition containing bistriazinyl arylenediamine derivative | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6521031B2 | Coloring composition, ink-jet ink, and ink jet recording method | Chemistry; Metallurgy | 8 | Expired |
| US6753425B2 | Photographic processing composition containing bistriazinyl arylenediamine derivative | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5342749A | Silver halide color photographic materials | Physics | 6 | Expired |
| US7951947B2 | Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex | Emerging Cross-Sectional Technologies | 6 | Active |
| US8574463B2 | Metal complex dye, photoelectric conversion element and dye-sensitized solar cell | Emerging Cross-Sectional Technologies | 6 | Active |
| US7994319B2 | Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex | Emerging Cross-Sectional Technologies | 5 | Active |
| US7951472B2 | Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex | Emerging Cross-Sectional Technologies | 5 | Active |
| US6613814B2 | Coloring composition, ink for ink jet, and ink jet recording method | Chemistry; Metallurgy | 5 | Expired |
| US4921968A | Pyrazoloazoleazomethine dyes | Physics | 5 | Expired |
| US6023032A | Shift knob structure with support grooves and hole for receiving tightly conductor wire | Electricity | 4 | Expired |
| US5118812A | Pyrazoloazole series couplers | Physics | 4 | Expired |
| US5773203A | 4-(N,N-dialkylamino)aniline compounds, photographic processing composition containing the same and color image-forming method | Chemistry; Metallurgy | 4 | Expired |
| US5116990A | Magenta dye-forming coupler | Physics | 4 | Expired |
| US7951946B2 | Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex | Emerging Cross-Sectional Technologies | 4 | Active |
| US7951945B2 | Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex | Emerging Cross-Sectional Technologies | 4 | Active |
| US8034935B2 | Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex | Emerging Cross-Sectional Technologies | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.