Nobuyuki Kajimoto
19Patents
12h-index
11Co-inventors
71Inventor score
Filing activity: Nov 1, 1985 → Jun 7, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4775733A | High-refractivity plastic lens resin formed by reacting at least one polyisocyanate with at least one polythiol | Chemistry; Metallurgy | 70 | Expired |
| US5753730A | Plastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur-containing urethane resin lens and lens prepared thereby | Physics | 69 | Expired |
| US4689387A | S-alkyl thiocarbamate base lens resin | Physics | 59 | Expired |
| US4946923A | S-alkyl thiocarbamate base resin, plastic lens comprising the resin, and process for making the lens | Physics | 47 | Expired |
| US4929707A | Polyurethane base lens resin, plastic lens comprising the resin and preparation method of the lens | Performing Operations; Transporting | 35 | Expired |
| US4791185A | High-refractivity plastic lens resin formed from a polyisocyanate and a polythiol | Physics | 31 | Expired |
| US5594088A | Plastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur containing urethane resin lens and lens prepared thereby | Physics | 26 | Expired |
| US4680369A | Sulfur-containing polyurethane base lens resin | Physics | 25 | Expired |
| US4780522A | Sulfur-containing polyurethane base lens resin | Physics | 22 | Expired |
| US5013496A | Process for molding a highly-refractive plastic lens | Chemistry; Metallurgy | 17 | Expired |
| US5021503A | Resin for plastic lens having high-refractive index, lens comprising the resin, and method for preparation of the lens | Chemistry; Metallurgy | 16 | Expired |
| US5126388A | Highly-refractive plastic lens and process for making the lens | Chemistry; Metallurgy | 15 | Expired |
| US4804783A | Process for producing diphenylamines or N,N'-diphenyl-phenylenediamines | Chemistry; Metallurgy | 11 | Expired |
| US4731453A | Process for producing 1, 3-dialkyl-2-imidazolidinone | Chemistry; Metallurgy | 7 | Expired |
| US4871875A | Process for producing diphenylamines or N,N'-diphenylphenylenediamines | Chemistry; Metallurgy | 6 | Expired |
| US4952731A | Process for producing diphenylamines or N,N'-diphenyl-phenylenediamines | Chemistry; Metallurgy | 5 | Expired |
| US4918186A | Process for producing cyclic ureas | Chemistry; Metallurgy | 4 | Expired |
| US4668793A | Process for producing 1,3-dimethyl-2-imidazolidinone | Chemistry; Metallurgy | 4 | Expired |
| US4900820A | Process for producing cyclic ureas | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.