Inventor · Yokohama, JP

Yoshinobu Kanemura

45Patents
18h-index
24Co-inventors
77Inventor score

Filing activity: Nov 6, 1984 → Jun 6, 2003

Most-cited inventions

PatentTitleAreaCited byStatus
US4542201A Resin for high-refractivity lenses and lenses made of same resin Chemistry; Metallurgy 88 Expired
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
US5693738A Composition for urethane-base plastic lens, urethane-base plastic lens obtained from the composition, and process for the production of the plastic lens Physics 66 Expired
US5374668A Casting epoxy resin, polythiol and releasing agent to form lens Physics 64 Expired
US5191055A Mercapto compound, a high refractive index resin and lens and a process for preparing them Physics 49 Expired
US4946923A S-alkyl thiocarbamate base resin, plastic lens comprising the resin, and process for making the lens Physics 47 Expired
US5087758A Mercapto compound, a high refractive index resin and lens and a process for preparing them Physics 45 Expired
US6100362A Sulfur-containing urethane-based resin and composition and process for producing the resin Physics 41 Expired
US5352758A Mercapto compound, its preparation process, and sulfur-containing urethane resins and lenses using the same Physics 40 Expired
US4929707A Polyurethane base lens resin, plastic lens comprising the resin and preparation method of the lens Performing Operations; Transporting 35 Expired
US5608115A Polythiol useful for preparing sulfur-containing urethane-based resin and process for producing the same Physics 33 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
US6300464A Polymerizable composition Physics 24 Expired
US5059673A Resin for urethane lenses, lenses comprising the resin, and a process for preparation of the resin and the lenses Physics 21 Expired
US5837797A Process for preparing a sulfur-containing urethane-based plastic lens and the lens prepared thereby Physics 20 Expired
US6770735B2 Process for preparing a thiol compound Emerging Cross-Sectional Technologies 18 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
US5955206A Polysulfide-based resin composition, polysulfide-based resin, and optical material comprising the resin Physics 16 Expired
US5126388A Highly-refractive plastic lens and process for making the lens Chemistry; Metallurgy 15 Expired
US5523467A Process for the preparation of aliphatic polyisocyanates Chemistry; Metallurgy 15 Expired
US4980497A Monomer of carbonate ester having isopropenylphenyl group Chemistry; Metallurgy 14 Expired
US5084538A High surface hardness transparent resin prepared from a compound having at least one isopropenyl phenyl group Physics 14 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.