Inventor · disambiguated record
Tadashi Okawa
Also filed as: HONBU MITSUYUKI · OKAWA TADASHI
101 granted patents·23 pending applications·1,491 citations·filing 1974–2022
99Inventor score
Files withDOW CORNING TORAY SILICONE62DOW CORNING TORAY CO LTD11DOW TORAY CO LTD10OKAWA TADASHI7TORAY SILICONE CO6
Top patents by PatentIndex Score
124 records- 0198US5194649AOrganopentasiloxane and method for its preparationDOW CORNING TORAY SILICONE·Filed 1992·Granted Mar 16, 1993·185 cites·3 claims
- 0297US6380301B1Thermally conductive silicone rubber compositionDOW CORNING TORAY SILICONE·Filed 2000·Granted Apr 30, 2002·77 cites·16 claims
- 0396US8034891B2Polyether-modified organopolysiloxane, diorganopolysiloxane-polyether block copolymer, their production methods, and cosmetic preparationDOW CORNING TORAY CO LTD·Filed 2007·Granted Oct 11, 2011·15 cites·39 claims
- 0495US6306992B1Carbosiloxane dendrimer and dendrimer-containing organic polymersDOW CORNING TORAY SILICONE·Filed 2000·Granted Oct 23, 2001·45 cites·4 claims
- 0595US5262505ASilicone modified polyimide resin and method for preparing sameDOW CORNING TORAY SILICONE·Filed 1992·Granted Nov 16, 1993·80 cites·6 claims
- 0694US5169920AMethod for preparing diphenylsiloxane/dimethylsiloxane copolymersDOW CORNING TORAY SILICONE·Filed 1991·Granted Dec 8, 1992·66 cites·4 claims
- 0793US7329706B2Heat-conductive silicone compositionDOW CORNING TORAY SILICONE·Filed 2002·Granted Feb 12, 2008·49 cites·18 claims
- 0892US8147854B2Cosmetics comprising a modified organopolysiloxaneOKAWA TADASHI·Filed 2006·Granted Apr 3, 2012·11 cites·21 claims
- 0991US12037525B2Curable silicone composition, release coating agent comprising said composition, release film obtained using said release coating agent, and layered product including said release filmDOW TORAY CO LTD·Filed 2019·Granted Jul 16, 2024·2 cites·19 claims
- 1091US3993446ACemented carbide materialDIJET IND CO LTD·Filed 1974·Granted Nov 23, 1976·35 cites·12 claims
- 1190US7622539B2Organopolysiloxane and silicone compositionDOW CORNING TORAY CO LTD·Filed 2005·Granted Nov 24, 2009·11 cites·19 claims
- 1290US5614640AEpoxy functional siloxanesDOW CORNING TORAY SILICONE·Filed 1996·Granted Mar 25, 1997·50 cites·20 claims
- 1390US5403881ARoom-temperature-curable compositionDOW CORNING TORAY SILICONE·Filed 1993·Granted Apr 4, 1995·67 cites·18 claims
- 1488US5395955AMethod for the preparation of carbinol group-containing organopolysiloxaneDOW CORNING TORAY SILICONE·Filed 1991·Granted Mar 7, 1995·43 cites·1 claims
- 1587US8461258B2Method of producing amino acid-modified organopolysiloxane emulsionsIIMURA TOMOHIRO·Filed 2008·Granted Jun 11, 2013·10 cites·12 claims
- 1687US4276589ATwelve-step current source inverterHITACHI LTD·Filed 1979·Granted Jun 30, 1981·34 cites·6 claims
- 1785US9486652B2Gel composition and cosmeticARAKI HIDEFUMI·Filed 2008·Granted Nov 8, 2016·6 cites·16 claims
- 1883US8013094B2Gelling agents and gelatinous compositionsDOW CORNING TORAY CO LTD·Filed 2006·Granted Sep 6, 2011·4 cites·14 claims
- 1982US8686174B2Partially hydrocarbon group-blocked (poly)glycerol-modified polysiloxane, method for producing the same, and cosmetic composition containing the sameOKAWA TADASHI·Filed 2009·Granted Apr 1, 2014·4 cites·11 claims
- 2081US6265516B1Anti-staining additive and room-temperature-curable polyorganosiloxane compositionDOW CORNING TORAY SILICONE·Filed 2000·Granted Jul 24, 2001·19 cites·8 claims
- 2181US5493039AMethod for the preparation of methacryloxypropyldimethylchlorosilaneDOW CORNING TORAY SILICONE·Filed 1995·Granted Feb 20, 1996·25 cites·18 claims
- 2280US6376635B1Oligosiloxane and method of preparing sameDOW CORNING TORAY SILICON CO L·Filed 2000·Granted Apr 23, 2002·11 cites·18 claims
- 2380US5272243AOrganosilicon compounds and method for preparing sameDOW CORNING TORAY SILICONE·Filed 1992·Granted Dec 21, 1993·21 cites·4 claims
- 2479US9598576B2Curable silicone composition, cured product thereof, and optical semiconductor deviceDOW CORNING TORAY CO LTD·Filed 2014·Granted Mar 21, 2017·4 cites·16 claims
- 2578US10604658B2Organic silicon compound, surface treatment agent containing same, resin composition containing same, and gel or cured product of sameDOW CORNING TORAY CO LTD·Filed 2014·Granted Mar 31, 2020·2 cites·19 claims
- 2678US5262506AOrganopolysiloxane and method for its preparationDOW CORNING TORAY SILICONE·Filed 1992·Granted Nov 16, 1993·23 cites·3 claims
- 2778US5169909AMethod for the preparation of organopolysiloxaneDOW CORNING TORAY SILICONE·Filed 1992·Granted Dec 8, 1992·23 cites·12 claims
- 2877US9018332B2Polyorganosiloxane containing methacryloxy group or acryloxy group and method for producing the sameOKAWA TADASHI·Filed 2009·Granted Apr 28, 2015·3 cites·4 claims
- 2977US8513174B2CleanserARAKI HIDEFUMI·Filed 2009·Granted Aug 20, 2013·4 cites·8 claims
- 3077US7199205B2Organopolysiloxane-modified polysaccharide and process for producing the sameDOW CORNING TORAY SILICONE·Filed 2003·Granted Apr 3, 2007·12 cites·12 claims
- 3177US6369185B1Curable organopolysiloxane composition, cured products formed therefrom and unified articlesDOW CORNING TORAY SILICONE·Filed 2000·Granted Apr 9, 2002·13 cites·17 claims
- 3276US6307081B1Hyperbranched polymers and methods for the preparation, cure, and stabilization thereofDOW CORNING TORAY SILICONE·Filed 1999·Granted Oct 23, 2001·29 cites·49 claims
- 3376US4981607ALiquid-crystalline organopolysiloxanes and methods for their preparationTORAY SILICONE CO·Filed 1989·Granted Jan 1, 1991·21 cites·6 claims
- 3475US6172252B1Pheno-functional organosilicon compounds and method for the preparationDOW CORNING TORAY SILICONE·Filed 2000·Granted Jan 9, 2001·8 cites·19 claims
- 3574US5856545AMethod for preparation of organopentasiloxaneDOW CORNING TORAY SILICONE·Filed 1997·Granted Jan 5, 1999·16 cites·30 claims
- 3673US6133394AMethod for the preparation of organofunctional organopentasiloxane, organic resin modifier and organic resinsDOW CORNING TORAY SILICONE·Filed 1999·Granted Oct 17, 2000·16 cites·18 claims
- 3773US6063887A1-acyloxy-organotetrasiloxane and production method for the preparation of the sameDOW CORNING TORAY SILICONE·Filed 1998·Granted May 16, 2000·23 cites·29 claims
- 3872US5262555AMethod for the preparation of acryloxy group-containing or methacryloxy group-containing organosilicon compoundsDOW CORNING TORAY SILICONE·Filed 1993·Granted Nov 16, 1993·14 cites·12 claims
- 3971US10940105B2Resin-linear organopolysiloxane block copolymer, use of same, and method for producing sameDOW TORAY CO LTD·Filed 2017·Granted Mar 9, 2021·0 cites·13 claims
- 4071US10874604B2Cosmetic composition or external composition, and cosmetic raw material compositionDOW TORAY CO LTD·Filed 2017·Granted Dec 29, 2020·0 cites·14 claims
- 4171US5118777APolydimethylsiloxane terminated at one end by a branched aminoalkyl group and preparation thereofDOW CORNING TORAY SILICONE·Filed 1990·Granted Jun 2, 1992·17 cites·8 claims
- 4271US4099108AVariable speed control apparatus for induction motorHITACHI LTD·Filed 1976·Granted Jul 4, 1978·17 cites·8 claims
- 4370US12129379B2Curable silicone composition, release coating agent comprising said composition, release film obtained using said release coating agent, and layered product including said release filmDOW TORAY CO LTD·Filed 2019·Granted Oct 29, 2024·0 cites·19 claims
- 4470US7989581B2Polyether from ring-opening of glycidyl ether with (C2-C5 alkylene oxide) monohydric alcoholDOW CORNING TORAY CO LTD·Filed 2007·Granted Aug 2, 2011·1 cites·8 claims
- 4569US8925626B2Composition for forming filmAKINAGA KEIICHI·Filed 2012·Granted Jan 6, 2015·2 cites·14 claims
- 4668US5750587ARadiation curable silicone release coating compositionsDOW CORNING TORAY SILICONE·Filed 1996·Granted May 12, 1998·23 cites·24 claims
- 4767US6252029B1Hydroxyphenyl group-containing organosilicon compound, and method for manufacturing sameDOW CORNING TORAY SILICONE·Filed 1999·Granted Jun 26, 2001·10 cites·5 claims
- 4867US6140525AHyperbranched polymers and methods for the preparation thereofRUSSIAN ACADEMY OF SCIENCES·Filed 1998·Granted Oct 31, 2000·17 cites·37 claims
- 4967US4889770AComposition for the surface treatment of rubberTORAY SILICONE CO·Filed 1988·Granted Dec 26, 1989·24 cites·20 claims
- 5066US2024150526A1Co-modified organopolysiloxane and curable organopolysiloxane composition including sameDOW TORAY CO LTD·Filed 2022·Application pending·0 cites
Showing the top 50 of 124 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →