Inventor · disambiguated record
Teruyuki Nagata
Also filed as: NAGATA TERUYUKI · YAMAMOTO KOUSUKE
72 granted patents·1,568 citations·filing 1978–2002
99Inventor score
Top patents by PatentIndex Score
72 records- 0199US4775733AHigh-refractivity plastic lens resin formed by reacting at least one polyisocyanate with at least one polythiolMITSUI TOATSU CHEMICALS·Filed 1987·Granted Oct 4, 1988·186 cites·22 claims
- 0298US4689387AS-alkyl thiocarbamate base lens resinMITSUI TOATSU CHEMICALS·Filed 1986·Granted Aug 25, 1987·197 cites·15 claims
- 0397US5753730APlastic 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
- 0496US5693738AComposition 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
- 0594US5608115APolythiol 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
- 0693US4946923AS-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
- 0790US4804783AProcess for producing diphenylamines or N,N'-diphenyl-phenylenediaminesMITSUI TOATSU CHEMICALS·Filed 1987·Granted Feb 14, 1989·22 cites·17 claims
- 0888US5523467AProcess for the preparation of aliphatic polyisocyanatesMITSUI TOATSU CHEMICALS·Filed 1995·Granted Jun 4, 1996·32 cites·5 claims
- 0987US5594088APlastic 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
- 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
- 1186US4680369ASulfur-containing polyurethane base lens resinMITSUI TOATSU CHEMICALS·Filed 1986·Granted Jul 14, 1987·56 cites·2 claims
- 1285US5013496AProcess for molding a highly-refractive plastic lensMITSUI TOATSU CHEMICALS·Filed 1989·Granted May 7, 1991·27 cites·5 claims
- 1385US4929707APolyurethane 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
- 1484US5302749AStabilizing method of isocyanate compounds and isocyanate compositions stabilized therebyMITSUI TOATSU CHEMICALS·Filed 1992·Granted Apr 12, 1994·22 cites·6 claims
- 1583US4780522ASulfur-containing polyurethane base lens resinMITSUI TOATSU CHEMICALS·Filed 1987·Granted Oct 25, 1988·28 cites·6 claims
- 1683US4193932AProcess for preparing organic isocyanatesMITSUI TOATSU CHEMICALS·Filed 1978·Granted Mar 18, 1980·15 cites·15 claims
- 1782US5126388AHighly-refractive plastic lens and process for making the lensMITSUI TOATSU CHEMICALS·Filed 1991·Granted Jun 30, 1992·25 cites·4 claims
- 1882US5021503AResin 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
- 1981US6417361B1Fluorination agent and preparation and use of sameMITSUI CHEMICALS INC·Filed 2000·Granted Jul 9, 2002·9 cites·24 claims
- 2081US5616806AProcess for preparing high-purity anilineMITSUI TOATSU CHEMICALS·Filed 1991·Granted Apr 1, 1997·19 cites·12 claims
- 2181US5136086APreparation process of aliphatic isocyanateMITSUI TOATSU CHEMICALS·Filed 1992·Granted Aug 4, 1992·19 cites·4 claims
- 2280US5194559AOptical urethane resins and plastic lenses comprising the sameMITSUI TOATSU CHEMICALS·Filed 1992·Granted Mar 16, 1993·27 cites·12 claims
- 2380US5084545AResin 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
- 2479US4791185AHigh-refractivity plastic lens resin formed from a polyisocyanate and a polythiolMITSUI TOATSU CHEMICALS·Filed 1987·Granted Dec 13, 1988·38 cites·14 claims
- 2578US4871875AProcess for producing diphenylamines or N,N'-diphenylphenylenediaminesMITSUI TOATSU CHEMICALS·Filed 1988·Granted Oct 3, 1989·11 cites·4 claims
- 2675US6632949B2Halogenating agentsMITSUI CHEMICALS INC·Filed 2002·Granted Oct 14, 2003·5 cites·11 claims
- 2775US5283365AProcess for preparing high-purity anilineMITSUI TOATSU CHEMICALS·Filed 1992·Granted Feb 1, 1994·14 cites·3 claims
- 2875US4731453AProcess for producing 1, 3-dialkyl-2-imidazolidinoneMITSUI TOATSU CHEMICALS·Filed 1986·Granted Mar 15, 1988·11 cites·14 claims
- 2974US4139562AProcess for purifying crude p-aminophenolMITSUI TOATSU CHEMICALS·Filed 1978·Granted Feb 13, 1979·8 cites·10 claims
- 3073US5955206APolysulfide-based resin composition, polysulfide-based resin, and optical material comprising the resinMITSUI CHEMICALS INC·Filed 1996·Granted Sep 21, 1999·27 cites·15 claims
- 3172US5449829AProcess for the preparation of diphenylamineMITSUI TOATSU CHEMICALS·Filed 1994·Granted Sep 12, 1995·12 cites·8 claims
- 3271US6458990B1Nitrogen-based halogenating agents and process for preparing halogen-containing compoundsMITSUI CHEMICALS INC·Filed 2001·Granted Oct 1, 2002·4 cites·6 claims
- 3371US5837797AProcess 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
- 3468US5736609ASulfur-containing urethane-based resin composition, its resin, and optical element and lens comprising resinMITSUI TOATSU CHEMICALS·Filed 1996·Granted Apr 7, 1998·21 cites·36 claims
- 3568US5719256AProcess for preparing polycondensation polymer compoundMITSUI TOATSU CHEMICALS·Filed 1996·Granted Feb 17, 1998·20 cites·74 claims
- 3668US4978792AProcess for producing aminobenzylamineMITSUI TOATSU CHEMICALS·Filed 1989·Granted Dec 18, 1990·9 cites·2 claims
- 3767US4918186AProcess for producing cyclic ureasMITSUI TOATSU CHEMICALS·Filed 1989·Granted Apr 17, 1990·7 cites·1 claims
- 3866US5647896AColor-developing agents and color-developing sheetsMITSUI TOATSU CHEMICALS·Filed 1995·Granted Jul 15, 1997·17 cites·19 claims
- 3965US4542243AProcess for producing 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpropyl ethersMITSUI TOATSU CHEMICALS·Filed 1983·Granted Sep 17, 1985·8 cites·8 claims
- 4064US6329529B1Nitrogen-based halogenating agents and process for preparing halogen-containing compoundsMITSUI CHEMICALS INC·Filed 1998·Granted Dec 11, 2001·7 cites·17 claims
- 4164US4952731AProcess for producing diphenylamines or N,N'-diphenyl-phenylenediaminesMITSUI TOATSU CHEMICALS·Filed 1988·Granted Aug 28, 1990·5 cites·4 claims
- 4264US4625062AProcess for producing 4-alkoxyanilinesMITSUI TOATSU CHEMICALS·Filed 1984·Granted Nov 25, 1986·7 cites·9 claims
- 4362US6127583AProcess for preparing acetylene derivative from a ketone compoundMITSUI CHEMICALS INC·Filed 1999·Granted Oct 3, 2000·8 cites·18 claims
- 4462US4723046AProcess for the preparation of 4,4'-biphenolMITSUI TOATSU CHEMICALS·Filed 1987·Granted Feb 2, 1988·6 cites·10 claims
- 4559US4877907APreparation 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
- 4659US4668793AProcess for producing 1,3-dimethyl-2-imidazolidinoneMITSUI TOATSU CHEMICALS·Filed 1985·Granted May 26, 1987·5 cites·7 claims
- 4755US4873374APreparation 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
- 4853US5594149AProcess for producing 1,3-dialkyl-2-imidazolidinoneMITSUI TOATSU CHEMICALS·Filed 1996·Granted Jan 14, 1997·4 cites·15 claims
- 4953US5389708ASulfur-containing acid phosphoric ester internal release agentMITSUI TOATSU CHEMICALS·Filed 1993·Granted Feb 14, 1995·8 cites·4 claims
- 5052US5750779APreparation process of acyl halide or sulfonyl halideMITSUI TOATSU CHEMICALS·Filed 1996·Granted May 12, 1998·4 cites·20 claims
Showing the top 50 of 72 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →