Inventor · disambiguated record
Hidefumi Harada
Also filed as: HARADA HIDEFUMI · NAKATA KOUJI
49 granted patents·9 pending applications·371 citations·filing 1979–2024
98Inventor score
Files withMITSUBISHI GAS CHEMICAL CO35TITAN KOGYO KK11TITAN KOGYO K K4ISAHAYA YOSHINORI2NIPPON STEEL CORP2
Top patents by PatentIndex Score
58 records- 0193US11161816B2Method for producing aromatic nitrile compound and method for producing carbonic acid esterMITSUBISHI GAS CHEMICAL CO·Filed 2020·Granted Nov 2, 2021·2 cites·3 claims
- 0292US12202786B2Method for producing aromatic nitrile compound and method for producing carbonate esterMITSUBISHI GAS CHEMICAL CO·Filed 2023·Granted Jan 21, 2025·2 cites·5 claims
- 0390US10793524B2Method for producing aromatic nitrile compound and method for producing carbonic acid esterMITSUBISHI GAS CHEMICAL CO·Filed 2017·Granted Oct 6, 2020·4 cites·22 claims
- 0489US8969505B2Process for manufacturing branched aromatic polycarbonate resin with desired degree of branchingISAHAYA YOSHINORI·Filed 2012·Granted Mar 3, 2015·6 cites·15 claims
- 0587US11970442B2Method for producing carbonic esterMITSUBISHI GAS CHEMICAL CO·Filed 2019·Granted Apr 30, 2024·2 cites·13 claims
- 0685US11596936B2Method for regenerating catalyst and method for producing carbonate esterMITSUBISHI GAS CHEMICAL CO·Filed 2018·Granted Mar 7, 2023·2 cites·14 claims
- 0785US9353216B2High-fluidity polycarbonate copolymer, process for production highly polymerized aromatic polycarbonate resin and aromatic polycarbonate compoundISAHAYA YOSHINORI·Filed 2012·Granted May 31, 2016·3 cites·16 claims
- 0884US12129230B2Dialkyl carbonate production methodMITSUBISHI GAS CHEMICAL CO·Filed 2019·Granted Oct 29, 2024·2 cites·10 claims
- 0984US11427679B2Polycarbonate resin compositionMITSUBISHI ENG PLASTICS CORP·Filed 2019·Granted Aug 30, 2022·1 cites·7 claims
- 1084US9499661B2Process for producing highly polymerized aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Nov 22, 2016·3 cites·11 claims
- 1183US4373963ALustrous pigment and process for producing sameTITAN KOGYO K K·Filed 1981·Granted Feb 15, 1983·33 cites·12 claims
- 1281US6031122AProcess for producing dialkyl carbonateMITSUBISHI GAS CHEMICAL CO·Filed 1998·Granted Feb 29, 2000·24 cites·17 claims
- 1380US6359163B2Process for producing dialkyl carbonateMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Mar 19, 2002·10 cites·11 claims
- 1480US5563199APotassium hexatitinate whiskers having a tunnel structureTITAN KOGYO KK·Filed 1995·Granted Oct 8, 1996·37 cites·9 claims
- 1579US10584092B2Method for producing aromatic nitrile compound and method for producing carbonate esterMITSUBISHI GAS CHEMICAL CO·Filed 2017·Granted Mar 10, 2020·2 cites·15 claims
- 1678US10053537B2High-fluidity polycarbonate copolymer, process for production highly polymerized aromatic polycarbonate resin and aromatic polycarbonate compoundMITSUBISHI GAS CHEMICAL CO·Filed 2016·Granted Aug 21, 2018·1 cites·2 claims
- 1778US9428608B2Aromatic polycarbonate resin compositionMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Aug 30, 2016·2 cites·11 claims
- 1878US2022177646A1Aromatic polycarbonate resin composition and aromatic polycarbonate resin manufacturing methodMITSUBISHI GAS CHEMICAL CO·Filed 2022·Application pending·0 cites
- 1977US4291010AHeat stable yellow iron oxidesTITAN KOGYO K K·Filed 1979·Granted Sep 22, 1981·19 cites·7 claims
- 2076US2024400495A1Method for producing carbonate esters, and catalytic structure for producing carbonate estersNIPPON STEEL CORP·Filed 2024·Application pending·0 cites
- 2175US9546249B2Process for preparing highly polymerized aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Jan 17, 2017·2 cites·15 claims
- 2274US5980445AProcess for producing diaryl carbonateMITSUBISHI GAS CHEMICAL CO·Filed 1997·Granted Nov 9, 1999·17 cites·4 claims
- 2372US9822218B2Process for producing a high molecular-weight aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2014·Granted Nov 21, 2017·1 cites·15 claims
- 2472US2023348279A1Method for producing carbonyl halideUNIV KOBE NAT UNIV CORP·Filed 2023·Application pending·0 cites
- 2570US11673856B2Method for producing aromatic nitrile compound and method for producing carbonate esterMITSUBISHI GAS CHEMICAL CO·Filed 2019·Granted Jun 13, 2023·0 cites·11 claims
- 2669US4376656AHeat resistant yellow iron oxide pigmentTITAN KOGYO K K·Filed 1981·Granted Mar 15, 1983·18 cites·9 claims
- 2765US12459884B2Method for producing carbonate esters, and catalytic structure for producing carbonate estersNIPPON STEEL CORP·Filed 2019·Granted Nov 4, 2025·0 cites·10 claims
- 2864US5407754APotassium hexatitanate fibers for use as reinforcementTITAN KOGYO KK·Filed 1992·Granted Apr 18, 1995·18 cites·8 claims
- 2963US2017174833A1High-fluidity polycarbonate copolymer, process for production highly polymerized aromatic polycarbonate resin and aromatic polycarbonate compoundMITSUBISHI GAS CHEMICAL CO·Filed 2017·Application pending·0 cites
- 3062US11142506B2Diaryl carbonate and method for producing the same, and method for producing an aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2020·Granted Oct 12, 2021·0 cites·3 claims
- 3162US9458290B2Process for preparing highly polymerized aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Oct 4, 2016·0 cites·5 claims
- 3262US5108739AWhite colored deodorizer and process for producing the sameTITAN KOGYO KK·Filed 1990·Granted Apr 28, 1992·58 cites·2 claims
- 3362US4374677APreparation of improved heat stable yellow iron oxide pigmentsTITAN KOGYO K K JAPAN·Filed 1981·Granted Feb 22, 1983·14 cites·6 claims
- 3462US2019085123A1Aromatic polycarbonate resin composition and aromatic polycarbonate resin manufacturing methodMITSUBISHI GAS CHEMICAL CO·Filed 2017·Application pending·0 cites
- 3560US12359062B2Polycarbonate resin, method for producing same, polycarbonate resin composition and molded bodyMITSUBISHI GAS CHEMICAL CO·Filed 2020·Granted Jul 15, 2025·0 cites·16 claims
- 3660US5543474AResin compositionMITSUBISHI GAS COMPANY INC·Filed 1994·Granted Aug 6, 1996·18 cites·10 claims
- 3759US12304998B2Polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2020·Granted May 20, 2025·0 cites·9 claims
- 3859US2022389159A1Polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2020·Application pending·0 cites
- 3956US9701788B2Method for producing branched aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Jul 11, 2017·0 cites·14 claims
- 4056US5500043ALustrous pigment and the method of producing the sameTITAN KOGYO KK·Filed 1995·Granted Mar 19, 1996·21 cites·4 claims
- 4152US9243106B2Method for continuous production of high molecular weight polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Jan 26, 2016·0 cites·13 claims
- 4252US2024261730A1Method for producing 2-furonitrile and method for producing carbonic acid esterMITSUBISHI GAS CHEMICAL CO·Filed 2022·Application pending·0 cites
- 4351US11014869B2Method for producing dialkyl carbonateMITSUBISHI GAS CHEMICAL CO·Filed 2018·Granted May 25, 2021·0 cites·9 claims
- 4450US11021571B2Manufacturing method for high molecular weight aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2017·Granted Jun 1, 2021·0 cites·20 claims
- 4548US10927216B2Manufacturing method for high molecular weight aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2017·Granted Feb 23, 2021·0 cites·16 claims
- 4648US10894860B2High molecular weight aromatic polycarbonate resin manufacturing methodMITSUBISHI GAS CHEMICAL CO·Filed 2017·Granted Jan 19, 2021·0 cites·10 claims
- 4748US5084422APotassium hexatitanate fibers having tunnel structure, process for producing the same, and composite material containing said fibersTITAN KOGYO KK·Filed 1988·Granted Jan 28, 1992·5 cites·4 claims
- 4847US2018290989A1Diaryl carbonate and method for producing the same, and method for producing an aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2016·Application pending·0 cites
- 4947US2014371404A1Method for continuous production of high-molecular-weight polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2012·Application pending·0 cites
- 5046US5387652AResin composition of polyamideimide and polyphenylene sulfideMITSUBISHI GAS CHEMICAL CO·Filed 1993·Granted Feb 7, 1995·8 cites·8 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →