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.
Join the waitlist — get patent alerts
Get an alert when TOSOH CORP files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →