Inventor · disambiguated record
Koju Okazaki
Also filed as: OKAZAKI KOJU
42 granted patents·7 pending applications·858 citations·filing 1988–2018
98Inventor score
Top patents by PatentIndex Score
49 records- 0197US5753730APlastic 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 therebyMITSUI TOATSU CHEMICALS·Filed 1991·Granted May 19, 1998·111 cites·26 claims
- 0296US5693738AComposition for urethane-base plastic lens, urethane-base plastic lens obtained from the composition, and process for the production of the plastic lensMITSUI TOATSU CHEMICALS·Filed 1995·Granted Dec 2, 1997·129 cites·18 claims
- 0394US6300464B2Polymerizable compositionMITSUI CHEMICALS INC·Filed 2000·Granted Oct 9, 2001·37 cites·18 claims
- 0494US5608115APolythiol useful for preparing sulfur-containing urethane-based resin and process for producing the sameMITSUI TOATSU CHEMICALS·Filed 1995·Granted Mar 4, 1997·63 cites·15 claims
- 0593US4946923AS-alkyl thiocarbamate base resin, plastic lens comprising the resin, and process for making the lensMITSUI TOATSU CHEMICALS·Filed 1989·Granted Aug 7, 1990·57 cites·24 claims
- 0688US10428194B2Modified acrylic resin cured product, and laminate thereof, and production methods thereforMITSUI CHEMICALS INC·Filed 2016·Granted Oct 1, 2019·2 cites·12 claims
- 0788US5523467AProcess for the preparation of aliphatic polyisocyanatesMITSUI TOATSU CHEMICALS·Filed 1995·Granted Jun 4, 1996·32 cites·5 claims
- 0887US5594088APlastic 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 therebyMITSUI TOATSU CHEMICALS·Filed 1995·Granted Jan 14, 1997·47 cites·29 claims
- 0986US9034464B2Single layer film and hydrophilic material comprising the sameOKAZAKI KOJU·Filed 2011·Granted May 19, 2015·4 cites·9 claims
- 1086US6100362ASulfur-containing urethane-based resin and composition and process for producing the resinMITSUI CHEMICALS INC·Filed 1997·Granted Aug 8, 2000·57 cites·19 claims
- 1185US5013496AProcess for molding a highly-refractive plastic lensMITSUI TOATSU CHEMICALS·Filed 1989·Granted May 7, 1991·27 cites·5 claims
- 1285US4929707APolyurethane base lens resin, plastic lens comprising the resin and preparation method of the lensMITSUI TOATSU CHEMICALS·Filed 1989·Granted May 29, 1990·47 cites·27 claims
- 1384US5302749AStabilizing method of isocyanate compounds and isocyanate compositions stabilized therebyMITSUI TOATSU CHEMICALS·Filed 1992·Granted Apr 12, 1994·22 cites·6 claims
- 1482US5126388AHighly-refractive plastic lens and process for making the lensMITSUI TOATSU CHEMICALS·Filed 1991·Granted Jun 30, 1992·25 cites·4 claims
- 1582US5021503AResin for plastic lens having high-refractive index, lens comprising the resin, and method for preparation of the lensMITSUI TOATSU CHEMICALS·Filed 1989·Granted Jun 4, 1991·26 cites·19 claims
- 1680US5194559AOptical urethane resins and plastic lenses comprising the sameMITSUI TOATSU CHEMICALS·Filed 1992·Granted Mar 16, 1993·27 cites·12 claims
- 1780US5084545AResin having a large refractive index, lenses comprising the resin and process for preparing the lensMITSUI TOATSU CHEMICALS·Filed 1989·Granted Jan 28, 1992·23 cites·20 claims
- 1879US6204311B1Polymerizable compositionMITSUI CHEMICALS INC·Filed 1999·Granted Mar 20, 2001·16 cites·10 claims
- 1978US8617711B2Single layer film and hydrophilic material comprising the sameOKAZAKI KOJU·Filed 2006·Granted Dec 31, 2013·4 cites·16 claims
- 2077US9238769B2Monolayer film and hydrophilic material comprising the sameOKAZAKI KOJU·Filed 2011·Granted Jan 19, 2016·2 cites·10 claims
- 2175US9976050B2Hydrophilic materials including sulfonate copolymer and amino resinMITSUI CHEMICALS INC·Filed 2015·Granted May 22, 2018·1 cites·9 claims
- 2273US5955206APolysulfide-based resin composition, polysulfide-based resin, and optical material comprising the resinMITSUI CHEMICALS INC·Filed 1996·Granted Sep 21, 1999·27 cites·15 claims
- 2371US5837797AProcess for preparing a sulfur-containing urethane-based plastic lens and the lens prepared therebyMITSUI CHEMICALS INC·Filed 1996·Granted Nov 17, 1998·28 cites·17 claims
- 2470US6458917B2Polymerizable compositionMITSUI CHEMICALS INC·Filed 2001·Granted Oct 1, 2002·6 cites·10 claims
- 2567US6365707B1Polymerizable composition and process for producing optical resin comprising the sameMITSUI CHEMICALS INC·Filed 2000·Granted Apr 2, 2002·7 cites·9 claims
- 2667US6303747B1Selenium-containing transparent optical materialMITSUI CHEMICALS INC·Filed 2000·Granted Oct 16, 2001·2 cites·3 claims
- 2762US6797805B2Organic polymers and novel polymerizable compoundsMITSUI CHEMICALS INC·Filed 2001·Granted Sep 28, 2004·6 cites·24 claims
- 2862US6124424ASelenized transparent optical materialMITSUI CHEMICALS INC·Filed 1998·Granted Sep 26, 2000·11 cites·22 claims
- 2959US4877907APreparation process of 4,4'-biphenol, precursor of same and preparation process of precursorMITSUI TOATSU CHEMICALS·Filed 1989·Granted Oct 31, 1989·4 cites·1 claims
- 3059US2016032036A1Copolymer and hydrophilic material composed of the sameMITSUI CHEMICALS INC·Filed 2014·Application pending·0 cites
- 3157US2018163056A1Hydrophilic curable compositionsMITSUI CHEMICALS INC·Filed 2014·Application pending·0 cites
- 3255US10040947B2Primer compositionOKAZAKI KOJU·Filed 2009·Granted Aug 7, 2018·0 cites·1 claims
- 3355US4873374APreparation process of 4,4'-biphenol, precursor of same and preparation process of precursorMITSUI TOATSU CHEMICALS·Filed 1988·Granted Oct 10, 1989·3 cites·1 claims
- 3454US9512034B2Hydrophilic filmOKAZAKI KOJU·Filed 2009·Granted Dec 6, 2016·0 cites·15 claims
- 3554US6664425B2Process for producing 1,3-bis(3-aminophenoxy)benzeneMITSUI CHEMICALS INC·Filed 2002·Granted Dec 16, 2003·1 cites·4 claims
- 3652US2016046827A1Film comprising copolymer or compositionMITSUI CHEMICALS INC·Filed 2014·Application pending·0 cites
- 3752US2015126682A1Hydrophilic modified acrylic resin filmMITSUI CHEMICALS INC·Filed 2013·Application pending·0 cites
- 3851US10519060B2Process for producing polymerizable composition for optical material and polymerizable composition for optical materialMITSUI CHEMICALS INC·Filed 2016·Granted Dec 31, 2019·0 cites·18 claims
- 3951US9273222B2Composition and film comprising sameMITSUI CHEMICALS INC·Filed 2012·Granted Mar 1, 2016·0 cites·8 claims
- 4049US4939306APreparation process of 4,4'-biphenol, precursor of same and preparation process of precursorMITSUI TOATSU CHEMICALS·Filed 1989·Granted Jul 3, 1990·2 cites·18 claims
- 4148US7008571B2Optical component and sulfur-containing poly(thio)ester (co)polymerMITSUI CHEMICALS INC·Filed 2002·Granted Mar 7, 2006·2 cites·37 claims
- 4246US6664364B2Selenium-containing transparent optical materialMITSUI CHEMICALS INC·Filed 2002·Granted Dec 16, 2003·0 cites·3 claims
- 4345US11338562B2Antifogging laminateMITSUI CHEMICALS INC·Filed 2017·Granted May 24, 2022·0 cites·8 claims
- 4444US11312857B2Polymerizable composition and molded productMITSUI CHEMICALS INC·Filed 2018·Granted Apr 26, 2022·0 cites·7 claims
- 4544US6482918B2Selenium-containing transparent optical materialMITSUI CHEMICALS INC·Filed 2001·Granted Nov 19, 2002·0 cites·6 claims
- 4642US9976049B2Hydrophilic monolayer filmsMITSUI CHEMICALS INC·Filed 2015·Granted May 22, 2018·0 cites·4 claims
- 4738US2017209345A1Dental prosthesisMITSUI CHEMICALS INC·Filed 2015·Application pending·0 cites
- 4837US2018036995A1Hydrophilic monolayer film with optical functionality and stack of the sameMITSUI CHEMICALS INC·Filed 2016·Application pending·0 cites
- 4935US2021284862A1Antireflective LaminateMITSUI CHEMICALS INC·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →