Assignee
TOSOH CORP
JP·767 granted patents·191 pending applications·11,806 citations·filing 1986–2025
Top patents by PatentIndex Score
958 records- 0198US5807938ACatalyst for olefin polymerization and process for producing olefin polymersTOSOH CORP·Filed 1996·Granted Sep 15, 1998·445 cites·8 claims
- 0297US5576259AProcess for producing α-olefin polymerTOSOH CORP·Filed 1994·Granted Nov 19, 1996·510 cites·1 claims
- 0396US9624193B2Cyclic azine derivatives, processes for producing these, and organic electroluminescent element containing these as componentTOSOH CORP·Filed 2015·Granted Apr 18, 2017·32 cites·14 claims
- 0495US6541205B1Method for assaying nucleic acidTOSOH CORP·Filed 2000·Granted Apr 1, 2003·140 cites·10 claims
- 0595US6034187ACatalyst for olefin polymerization and process for production of olefin polymerTOSOH CORP·Filed 1998·Granted Mar 7, 2000·143 cites·10 claims
- 0695US5882594ADevice and method for automatic sample pretreatmentTOSOH CORP·Filed 1997·Granted Mar 16, 1999·123 cites·15 claims
- 0795US5434116AOrganic transition metal compound having π-bonding heterocyclic ligand and method of polymerizing olefin by using the sameTOSOH CORP·Filed 1993·Granted Jul 18, 1995·138 cites·5 claims
- 0894US11802049B2Gallium nitride-based sintered compact and method for manufacturing sameTOSOH CORP·Filed 2022·Granted Oct 31, 2023·2 cites·13 claims
- 0994US9962247B2Colored translucent zirconia sintered body and powder, and application thereofTOSOH CORP·Filed 2015·Granted May 8, 2018·11 cites·11 claims
- 1094US9428422B2Colored translucent zirconia sintered body and its useTOSOH CORP·Filed 2013·Granted Aug 30, 2016·19 cites·18 claims
- 1194US6461570B2AnalyzerTOSOH CORP·Filed 2000·Granted Oct 8, 2002·131 cites·7 claims
- 1294US5735590ABacklighting device with a transparent sheet having straight ridgesTOSOH CORP·Filed 1995·Granted Apr 7, 1998·182 cites·11 claims
- 1394US5521797ABacklighting deviceTOSOH CORP·Filed 1994·Granted May 28, 1996·170 cites·11 claims
- 1494US5270024AProcess for reducing nitrogen oxides from exhaust gasTOSOH CORP·Filed 1990·Granted Dec 14, 1993·128 cites·13 claims
- 1594US5262928ABack lighting deviceTOSOH CORP·Filed 1992·Granted Nov 16, 1993·146 cites·19 claims
- 1693US6605735B2Ruthenium complex, process for producing the same and process for producing thin filmTOSOH CORP·Filed 2002·Granted Aug 12, 2003·126 cites·26 claims
- 1793US5442523ABacklighting deviceTOSOH CORP·Filed 1992·Granted Aug 15, 1995·113 cites·6 claims
- 1893US5347025ACatalyst for polymerization of vinyl compoundTOSOH CORP·Filed 1993·Granted Sep 13, 1994·54 cites·3 claims
- 1993US5093765ABack lighting device for a panelTOSOH CORP·Filed 1991·Granted Mar 3, 1992·143 cites·13 claims
- 2093US4944922AQuantitative dispenser for a liquidTOSOH CORP·Filed 1989·Granted Jul 31, 1990·99 cites·12 claims
- 2192US9718905B2Polythiophene, water-soluble electrically conductive polymer using it, and method for producing itTOSOH CORP·Filed 2013·Granted Aug 1, 2017·20 cites·10 claims
- 2292US7994316B21,3,5-triazine derivative, production method thereof and organic electroluminescence device comprising this as a composing componentTOSOH CORP·Filed 2006·Granted Aug 9, 2011·16 cites·20 claims
- 2392US7538055B2Transparent zirconia sintered bodyTOSOH CORP·Filed 2007·Granted May 26, 2009·26 cites·15 claims
- 2492US5194333APacking material for reversed phase chromatography and process for its preparationTOSOH CORP·Filed 1990·Granted Mar 16, 1993·106 cites·6 claims
- 2591US11807579B2Zirconia sintered body and manufacturing method of the sameTOSOH CORP·Filed 2020·Granted Nov 7, 2023·2 cites·18 claims
- 2691US9737383B2Translucent zirconia sintered body and zirconia powder, and use thereforTOSOH CORP·Filed 2014·Granted Aug 22, 2017·10 cites·13 claims
- 2791US9252368B2Cyclic azine compound having nitrogen-containing condensed aromatic group, method for producing same, and organic electroluminescent device comprising same as constituent componentTOSOH CORP·Filed 2012·Granted Feb 2, 2016·9 cites·11 claims
- 2891US9172045B24-aminocarbazole compound and use thereofTOSOH CORP·Filed 2012·Granted Oct 27, 2015·10 cites·15 claims
- 2991US5212043APhotoresist composition comprising a non-aromatic resin having no aromatic structures derived from units of an aliphatic cyclic hydrocarbon and units of maleic anhydride and/or maleimide and a photosensitive agentTOSOH CORP·Filed 1989·Granted May 18, 1993·117 cites·19 claims
- 3091US4937709ABack lighting device for a liquid crystal panelTOSOH CORP·Filed 1989·Granted Jun 26, 1990·77 cites·2 claims
- 3190US6814894B2Lithium-manganese complex oxide, production method thereof and use thereofTOSOH CORP·Filed 2002·Granted Nov 9, 2004·32 cites·6 claims
- 3289US7049103B2Method of evaluating drug efficacy and toxicityTOSOH CORP·Filed 2002·Granted May 23, 2006·52 cites·6 claims
- 3388US11548825B2Zirconia layered bodyTOSOH CORP·Filed 2020·Granted Jan 10, 2023·2 cites·18 claims
- 3488US9698352B2Amine compound and use thereofTOSOH CORP·Filed 2013·Granted Jul 4, 2017·5 cites·6 claims
- 3588US7482490B2Amine compound having fluorene group as framework, process for producing the amine compound, and use of the amine compoundTOSOH CORP·Filed 2005·Granted Jan 27, 2009·7 cites·14 claims
- 3688US6506469B2Surface-side reproduction type optical recording mediumTOSOH CORP·Filed 2001·Granted Jan 14, 2003·25 cites·28 claims
- 3788US4981947AAromatic sulfideamide polymer and method for producing the sameTOSOH CORP·Filed 1988·Granted Jan 1, 1991·42 cites·5 claims
- 3887US6902814B2Quartz glass parts, ceramic parts and process of producing thoseTOSOH CORP·Filed 2002·Granted Jun 7, 2005·30 cites·18 claims
- 3987US6328644B1Molded abrasive product and polishing wheel using itTOSOH CORP·Filed 2000·Granted Dec 11, 2001·48 cites·4 claims
- 4087US5843376AReaction apparatus for automatic analysisTOSOH CORP·Filed 1996·Granted Dec 1, 1998·87 cites·26 claims
- 4186US11021401B2Zirconia sintered body and method for manufacturing the sameTOSOH CORP·Filed 2018·Granted Jun 1, 2021·2 cites·3 claims
- 4286US10555795B2Colored translucent zirconia sintered body and powder, and use thereofTOSOH CORP·Filed 2018·Granted Feb 11, 2020·2 cites·3 claims
- 4386US8030022B2Microorganism and method for producing carotenoid using itTOSOH CORP·Filed 2006·Granted Oct 4, 2011·6 cites·5 claims
- 4486US7888279B2High toughness translucent alumina sintered body, method for producing the same, and its usesTOSOH CORP·Filed 2008·Granted Feb 15, 2011·10 cites·6 claims
- 4586US7553434B2Fine channel device, fine particle producing method and solvent extraction methodTOSOH CORP·Filed 2008·Granted Jun 30, 2009·13 cites·8 claims
- 4686US5866689AMonoclonal antibodies to GP130 proteinTOSOH CORP·Filed 1997·Granted Feb 2, 1999·69 cites·17 claims
- 4786US5618095ABacklighting deviceTOSOH CORP·Filed 1995·Granted Apr 8, 1997·74 cites·12 claims
- 4886US5384391APolyarylene sulfide and preparation thereofTOSOH CORP·Filed 1993·Granted Jan 24, 1995·39 cites·14 claims
- 4986US5321160AProcess for producing an ethylenamineTOSOH CORP·Filed 1992·Granted Jun 14, 1994·28 cites·11 claims
- 5086US5178834AAutomatic immunoassay analyzerTOSOH CORP·Filed 1992·Granted Jan 12, 1993·86 cites·27 claims
Showing the top 50 of 958 patent records by PatentIndex Score.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →