Tadashi Ikeda
106Patents
14h-index
117Co-inventors
89Inventor score
Filing activity: Sep 4, 1973 → May 11, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4337063A | Competitive immunoassay using spectral sensitizer label | Emerging Cross-Sectional Technologies | 59 | Expired |
| US5784365A | Time division multiplex communication control system | Electricity | 51 | Expired |
| US4516327A | Touch signal probe | Physics | 43 | Expired |
| US4783398A | Photographic silver halide emulsion containing tabular grains of high chloride content | Physics | 37 | Expired |
| US4115122A | Internal latent image silver halide emulsion containing a heterocyclic quaternary salt having a propargyl or a butyryl containing substituent | Physics | 31 | Expired |
| US4837140A | Color image-forming high silver chloride color photographic material having improved spectral sensitivity and silver removability for use therewith | Physics | 24 | Expired |
| US4740453A | Silver halide photosensitive material containing a compound capable of releasing a photographically useful group | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4404233A | Ion implanting method | Electricity | 20 | Expired |
| US4195999A | Silver halide photographic material containing ultraviolet light absorbing agent | Physics | 19 | Expired |
| US4455368A | Silver halide photographic light-sensitive material containing a UV absorbing polymer latex | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4582786A | Silver halide photographic emulsion | Physics | 17 | Expired |
| US5457022A | Silver halide photographic material | Physics | 17 | Expired |
| US4817053A | Apparatus for storing and retrieving information using an electron beam | Physics | 16 | Expired |
| US4609621A | Silver halide photographic light-sensitive material | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5296343A | Silver halide photographic emulsion and full color recording material containing the same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4072567A | Compound water-insoluble glucan and process for the production thereof | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4551424A | Silver halide photographic light-sensitive material | Physics | 13 | Expired |
| US4443534A | Silver halide photographic elements containing polymers which filter UV light | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4717650A | Silver halide photographic emulsion | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4897343A | Silver halide photographic emulsion | Physics | 11 | Expired |
| US3976492A | Silver halide photographic emulsions | Physics | 11 | Expired |
| US6120983A | Photothermographic material, novel 2,3-dihydrothiazole derivative, and photographic silver halide photosensitive material | Physics | 11 | Expired |
| US4362813A | Silver halide photographic emulsions | Physics | 10 | Expired |
| US8635927B2 | Speed change device of a transmission | Emerging Cross-Sectional Technologies | 10 | Active |
| US4102743A | Process for the removal of sucrose from a sugar mixture | Emerging Cross-Sectional Technologies | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.