Inventor · disambiguated record
Masami Watanabe
Also filed as: WATANABE MASAMI
61 granted patents·16 pending applications·1,572 citations·filing 1983–2022
99Inventor score
Top patents by PatentIndex Score
77 records- 0199US4814540AProcess for producing propylene oligomersIDEMITSU KOSAN CO·Filed 1987·Granted Mar 21, 1989·120 cites·16 claims
- 0298US5678402AAir-fuel ratio control system for internal combustion engines and exhaust system temperature-estimating device applicable theretoHONDA MOTOR CO LTD·Filed 1995·Granted Oct 21, 1997·182 cites·27 claims
- 0395US5369196AProduction process of olefin based polymersIDEMITSU KOSAN CO·Filed 1991·Granted Nov 29, 1994·123 cites·3 claims
- 0494US12306052B2Pressure sensitive sensorFUJIKURA LTD·Filed 2021·Granted May 20, 2025·2 cites·10 claims
- 0594US5629398AProcess for producing cyclic olefin based polymers, cyclic olefin copolymers, compositions and molded articles comprising the copolymersIDEMITSU KOSAN CO·Filed 1991·Granted May 13, 1997·86 cites·19 claims
- 0693US7759489B2Transition metal complex compound and organic electroluminescence device using the compoundIDEMITSU KOSAN CO·Filed 2006·Granted Jul 20, 2010·114 cites·15 claims
- 0792US10071126B2Conditionally replicating adenovirus to express REIC geneNAT UNIV CORPORATION OKAYAMA UNIV·Filed 2015·Granted Sep 11, 2018·9 cites·6 claims
- 0892US6555633B1Catalysts for α-olefin production and processes for producing α-olefinIDEMITSU PETROCHEMICAL CO·Filed 2000·Granted Apr 29, 2003·44 cites·15 claims
- 0991US6841693B1Transition metal compound, olefin polymerization catalyst, and method of polymerizing olefinIDEMITSU PETROCHEMICAL CO·Filed 2000·Granted Jan 11, 2005·31 cites·14 claims
- 1091US5955557ABranched ethylenic macromonomer and its polymerIDEMITSU KOSAN CO·Filed 1994·Granted Sep 21, 1999·58 cites·4 claims
- 1191US5171919AProcess for producing propylene based oligomersIDEMITSU KOSAN CO·Filed 1991·Granted Dec 15, 1992·42 cites·4 claims
- 1290US5726705ASurface defect inspection apparatusNISSAN MOTOR·Filed 1996·Granted Mar 10, 1998·145 cites·34 claims
- 1387US5693728AProcess for producing cyclic olefin based polymersIDEMITSU KOSAN CO·Filed 1996·Granted Dec 2, 1997·47 cites·11 claims
- 1485US5854165ATransition metal compound, catalyst for olefin polymerization, process for preparing olefin polymer by use of catalystIDEMITSU KOSAN CO·Filed 1994·Granted Dec 29, 1998·54 cites·44 claims
- 1584US7176266B2Catalyst for vinyl compound polymerization and process for producing vinyl polymerIDEMITSU KOSAN CO·Filed 2004·Granted Feb 13, 2007·11 cites·21 claims
- 1684US5461127APolymerization catalysts and process for producing polymersIDEMITSU KOSAN CO·Filed 1993·Granted Oct 24, 1995·43 cites·14 claims
- 1783US5648443ACyclic olefin copolymers, compositions and molded articles comprising the copolymersIDEMITSU KOSAN CO·Filed 1996·Granted Jul 15, 1997·35 cites·16 claims
- 1881US9644013B2Partial region polypeptide of REIC/Dkk-3 proteinNAT UNIV CORP OKAYAMA UNIV·Filed 2016·Granted May 9, 2017·3 cites·6 claims
- 1980US6787499B2Catalyst for the production of α-olefin and α-olefin production methodIDEMITSU PETROCHEMICAL CO·Filed 2003·Granted Sep 7, 2004·16 cites·12 claims
- 2078US6339135B1Transition metal compound, catalyst for olefin polymerization, process for preparing olefin polymerIDEMITSU KOSAN CO·Filed 1996·Granted Jan 15, 2002·37 cites·15 claims
- 2178US5586544AFuel injection amount control system for internal combustion engines and intake passage wall temperature-estimating device used thereinHONDA MOTOR CO LTD·Filed 1994·Granted Dec 24, 1996·30 cites·32 claims
- 2278US5403908AAryl styrene-based copolymerIDEMITSU KOSAN CO·Filed 1993·Granted Apr 4, 1995·30 cites·6 claims
- 2377US5391661AProcess for producing a styrenic polymer and a catalyst for use thereinIDEMITSU KOSAN CO·Filed 1992·Granted Feb 21, 1995·31 cites·9 claims
- 2476US9493776B2System for increasing gene expression and vector comprising the systemKUMON HIROMI·Filed 2010·Granted Nov 15, 2016·2 cites·16 claims
- 2576US8658612B2Therapeutic agent for malignant mesothelioma and immunostimulantKUMON HIROMI·Filed 2009·Granted Feb 25, 2014·3 cites·3 claims
- 2674US9222107B2REIC-expressing adenovirus vectorKUMON HIROMI·Filed 2012·Granted Dec 29, 2015·4 cites·8 claims
- 2774US8614093B2Pharmaceutical composition for treating or preventing cancer by inducing dendritic cell-like differentiation from monocytes to improve anticancer immune activityKUMON HIROMI·Filed 2009·Granted Dec 24, 2013·2 cites·4 claims
- 2874US4529498AMethod for producing mesophase pitchKASHIMA OIL·Filed 1983·Granted Jul 16, 1985·15 cites·4 claims
- 2973US8946173B2Cancer cell death inducing agent having effects of potentiating anticancer drug against anticancer-drug-resistant cancerKUMON HIROMI·Filed 2008·Granted Feb 3, 2015·3 cites·3 claims
- 3073US6171994B1Multiple crosslinking type transition metal compound used for olefin polymerization processIDEMITSU KOSAN CO·Filed 1998·Granted Jan 9, 2001·12 cites·12 claims
- 3173US4913889AHigh strength high modulus carbon fibersKASHIMA OIL·Filed 1987·Granted Apr 3, 1990·18 cites·7 claims
- 3271US4814121AMethod for spinning a petroleum-origin mesophaseKASHIMA OIL·Filed 1983·Granted Mar 21, 1989·13 cites·5 claims
- 3370US6169154B1Branched ethylenic macromonomer and its polymerIDEMITSU KOSAN CO·Filed 1999·Granted Jan 2, 2001·20 cites·9 claims
- 3470US5050411AShift lever locking device for automatic transmission of column typeTOKAI RIKA CO LTD·Filed 1990·Granted Sep 24, 1991·30 cites·12 claims
- 3566US7446197B2Metal-complex compound and organic electroluminescence device using the compoundIDEMITSU KOSAN CO·Filed 2006·Granted Nov 4, 2008·2 cites·8 claims
- 3666US4512874AMethod for producing mesophase continuouslyKASHIMA OIL·Filed 1983·Granted Apr 23, 1985·13 cites·1 claims
- 3763US5600005AProcess for producing tetrakisflorophenylborateIDEMITSU KOSAN CO·Filed 1995·Granted Feb 4, 1997·10 cites·8 claims
- 3863US4529499AMethod for producing mesophase pitchKASHIMA OIL·Filed 1983·Granted Jul 16, 1985·11 cites·2 claims
- 3961US7462719B2Metal-complex compound and organic electroluminescence device using the compoundIDEMITSU KOSAN CO·Filed 2006·Granted Dec 9, 2008·0 cites·5 claims
- 4058US10272208B2Apparatus and system for controlling permeation and diffusion of solute and/or solvent locallyACEMEDIC INC·Filed 2015·Granted Apr 30, 2019·1 cites·14 claims
- 4158US9425402B2Polymerizable monomer, and material for organic device, hole injection/transport material, material for organic electroluminescence element and organic electroluminescent element each comprising polymer (polymeric compound) of the polymerizable monomerIDEMITSU KOSAN CO·Filed 2014·Granted Aug 23, 2016·0 cites·26 claims
- 4258US2025102377A1Pressure sensitive sensor unitFUJIKURA LTD·Filed 2022·Application pending·0 cites
- 4357US11111564B2Cemented carbide, cutting tool including same, and method of producing cemented carbideSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2019·Granted Sep 7, 2021·0 cites·8 claims
- 4457US5159561AZero-phase sequence current detectorMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Oct 27, 1992·23 cites·2 claims
- 4556US2009102367A1Organic electroluminescence device using a metal-complex compoundIDEMITSU KOSAN CO·Filed 2008·Application pending·0 cites
- 4655US12249446B2Variable resistorFUJIKURA LTD·Filed 2021·Granted Mar 11, 2025·0 cites·10 claims
- 4755US5294685AProcess for producing a styrenic polymer having a high degree of syndiotacticityIDEMITSU KOSAN CO·Filed 1993·Granted Mar 15, 1994·17 cites·5 claims
- 4853US11441209B2Cemented carbide and cutting tool including sameSUMITOMO ELECTRIC HARDMETAL CORP·Filed 2021·Granted Sep 13, 2022·0 cites·8 claims
- 4952US4606872AMethod for spinning carbon fibersKASHIMA OIL·Filed 1984·Granted Aug 19, 1986·14 cites·2 claims
- 5052US4487685AMethod for producing mesophase-containing pitch by using carrier gasKASHIMA OIL·Filed 1983·Granted Dec 11, 1984·6 cites·4 claims
Showing the top 50 of 77 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →