Assignee
OTSUKA KAGAKU KK
JP·127 granted patents·1,641 citations·filing 1983–2004
Top patents by PatentIndex Score
127 records- 0199US5236958ABenzoselenazolino-vinylspiropyran compoundOTSUKA KAGAKU KK·Filed 1991·Granted Aug 17, 1993·119 cites·4 claims
- 0297US5252742ASpiropyran compoundsOTSUKA KAGAKU KK·Filed 1993·Granted Oct 12, 1993·106 cites·12 claims
- 0396US5693792Aβ-lactam and cephem compounds and processes for their productionOTSUKA KAGAKU KK·Filed 1995·Granted Dec 2, 1997·136 cites·1 claims
- 0496US4898654AMethod of producing optically active β-lactam derivativesOTSUKA KAGAKU KK·Filed 1989·Granted Feb 6, 1990·71 cites·6 claims
- 0587US5601886AArtificial turfOTSUKA KAGAKU KK·Filed 1993·Granted Feb 11, 1997·74 cites·2 claims
- 0687US5131827AFiber- and whisker-reinforced injection moldable resin composition for scroll compressor parts and method of manufacturing scroll compressor partsOTSUKA KAGAKU KK·Filed 1990·Granted Jul 21, 1992·63 cites·17 claims
- 0786US6219965B1Plant growth sheet structure, natural turf sheet structure, method of growing turf and method of laying turf sheet structureOTSUKA KAGAKU KK·Filed 1995·Granted Apr 24, 2001·73 cites·34 claims
- 0884US5599925APenam derivativesOTSUKA KAGAKU KK·Filed 1994·Granted Feb 4, 1997·29 cites·3 claims
- 0982US5462778AArtificial turf, pile yarn for artificial turf and process and spinneret for producing pile yarnOTSUKA KAGAKU KK·Filed 1993·Granted Oct 31, 1995·30 cites·3 claims
- 1082US4826924AAntibacterial polymerOTSUKA KAGAKU KK·Filed 1988·Granted May 2, 1989·31 cites·1 claims
- 1180US6355601B1Friction materialOTSUKA KAGAKU KK·Filed 2000·Granted Mar 12, 2002·20 cites·4 claims
- 1280US6319602B1Boron nitride and process for preparing the sameOTSUKA KAGAKU KK·Filed 1997·Granted Nov 20, 2001·41 cites·3 claims
- 1379US5827996AAir bag gas generating compositionOTSUKA KAGAKU KK·Filed 1996·Granted Oct 27, 1998·36 cites·8 claims
- 1478US6541111B2Process for producing boron nitrideOTSUKA KAGAKU KK·Filed 2001·Granted Apr 1, 2003·19 cites·3 claims
- 1577US6703438B2Electroconductive plate-like titania and electroconductive compositionOTSUKA KAGAKU KK·Filed 2001·Granted Mar 9, 2004·15 cites·7 claims
- 1677US6569264B1Surface-treating agent for magnesium-based part and method of surface treatmentOTSUKA KAGAKU KK·Filed 2000·Granted May 27, 2003·18 cites·16 claims
- 1777US5739083APyrazole derivatives and insecticidal compositions containing the derivative as active componentOTSUKA KAGAKU KK·Filed 1996·Granted Apr 14, 1998·31 cites·12 claims
- 1877US5320784ACrystal comprising an indolinospirobenzothiopyran derivative and its ring opened isomerOTSUKA KAGAKU KK·Filed 1992·Granted Jun 14, 1994·17 cites·5 claims
- 1977US4590234AMelt-moldable fluorine-containing resin compositionOTSUKA KAGAKU KK·Filed 1984·Granted May 20, 1986·28 cites·2 claims
- 2076US4906623A3-Imidazolium cephalosporin derivativesOTSUKA KAGAKU KK·Filed 1988·Granted Mar 6, 1990·13 cites·6 claims
- 2174US5476913APolymerizable monomer, polymer thereof and process for preparing sameOTSUKA KAGAKU KK·Filed 1993·Granted Dec 19, 1995·14 cites·5 claims
- 2273US6632891B1Flame-retardant resin, composition thereof, and process for producing the sameOTSUKA KAGAKU KK·Filed 1999·Granted Oct 14, 2003·26 cites·5 claims
- 2373US6503967B1Hardener for epoxy resin and epoxy resin compositionOTSUKA KAGAKU KK·Filed 2000·Granted Jan 7, 2003·13 cites·7 claims
- 2473US5922882ABisbenzotriazolylphenol compoundOTSUKA KAGAKU KK·Filed 1997·Granted Jul 13, 1999·17 cites·6 claims
- 2572US6576761B1Process for the preparation of cephem compoundsOTSUKA KAGAKU KK·Filed 2000·Granted Jun 10, 2003·10 cites·4 claims
- 2672US5708181ASpiropyran compoundOTSUKA KAGAKU KK·Filed 1995·Granted Jan 13, 1998·17 cites·2 claims
- 2772US4912213AProcess for preparing penicillanic acid derivativesOTSUKA KAGAKU KK·Filed 1988·Granted Mar 27, 1990·21 cites·22 claims
- 2870US6306796B1Photocatalyst, process for producing the same and multifunctional membersOTSUKA KAGAKU KK·Filed 1998·Granted Oct 23, 2001·38 cites·6 claims
- 2969US6797750B2Flame-retardant epoxy resin composition, molded article thereof, and electronic partOTSUKA KAGAKU KK·Filed 2001·Granted Sep 28, 2004·17 cites·9 claims
- 3069US5942168AResin compound for molding die, molding die and material molding by the molding dieOTSUKA KAGAKU KK·Filed 1994·Granted Aug 24, 1999·35 cites·14 claims
- 3169US5070194AMethod for production of β-lactam derivativesOTSUKA KAGAKU KK·Filed 1989·Granted Dec 3, 1991·10 cites·6 claims
- 3268US5942205ATitanate whiskers and process for their preparationOTSUKA KAGAKU KK·Filed 1996·Granted Aug 24, 1999·23 cites·1 claims
- 3367US6417351B1Process for producing 3-alkenylcephem compoundsOTSUKA KAGAKU KK·Filed 1998·Granted Jul 9, 2002·12 cites·4 claims
- 3467US5866594AIndole-2-carboxylate derivatives and fungicidal compositions for agricultural or horticultural use containing the derivatives as active componentOTSUKA KAGAKU KK·Filed 1996·Granted Feb 2, 1999·18 cites·8 claims
- 3567US4843130AAntibacterial polymerOTSUKA KAGAKU KK·Filed 1988·Granted Jun 27, 1989·10 cites·1 claims
- 3666US6797830B2Process for producing oxide with higher oxidation than alcoholOTSUKA KAGAKU KK·Filed 2001·Granted Sep 28, 2004·4 cites·8 claims
- 3766US4925934AProcess for preparation of beta-lactam derivativesOTSUKA KAGAKU KK·Filed 1989·Granted May 15, 1990·18 cites·6 claims
- 3866US4609438AProcess for preparing thiosulfonate derivativesOTSUKA KAGAKU KK·Filed 1984·Granted Sep 2, 1986·15 cites·12 claims
- 3965US5656754AProcess for preparing cephem compoundsOTSUKA KAGAKU KK·Filed 1993·Granted Aug 12, 1997·9 cites·6 claims
- 4065US5183716AAll solid-state batteryOTSUKA KAGAKU KK·Filed 1990·Granted Feb 2, 1993·15 cites·4 claims
- 4165US4604457A2-substituted cephem derivatives and process for preparing the sameOTSUKA KAGAKU KK·Filed 1983·Granted Aug 5, 1986·9 cites·3 claims
- 4263US7368123B1Pesticidal resin compositions and pesticidal products formed from the sameOTSUKA KAGAKU KK·Filed 2000·Granted May 6, 2008·3 cites·2 claims
- 4362US4578107AHerbicidal imidazolidine-2-one derivativesOTSUKA KAGAKU KK·Filed 1983·Granted Mar 25, 1986·4 cites·12 claims
- 4461US6787192B2Process for producing part made of magnesium and/or magnesium alloyOTSUKA KAGAKU KK·Filed 2001·Granted Sep 7, 2004·7 cites·10 claims
- 4560US7183421B2Processes for producing oxide with higher oxidation than alcoholOTSUKA KAGAKU KK·Filed 2004·Granted Feb 27, 2007·2 cites·10 claims
- 4660US6713164B1Printing sheetsOTSUKA KAGAKU KK·Filed 1997·Granted Mar 30, 2004·17 cites·16 claims
- 4760US5241117AProcess for producing semicarbazideOTSUKA KAGAKU KK·Filed 1991·Granted Aug 31, 1993·8 cites·19 claims
- 4860US4652439AProcess for preparing fibrous alkali metal titanateOTSUKA KAGAKU KK·Filed 1985·Granted Mar 24, 1987·10 cites·7 claims
- 4959US4840856AAllyl group-containing oligoethyleneoxypolyphosphazenes, process for their preparation, and their useOTSUKA KAGAKU KK·Filed 1987·Granted Jun 20, 1989·21 cites·3 claims
- 5058US5278182AAzole-1-carboxylic acid ester derivatives and fungicidal compositionsOTSUKA KAGAKU KK·Filed 1992·Granted Jan 11, 1994·9 cites·2 claims
Showing the top 50 of 127 patent records by PatentIndex Score.
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