Inventor · disambiguated record
Takehiko Isobe
Also filed as: ISOBE TAKEHIKO
27 granted patents·5 pending applications·36 citations·filing 2001–2023
93Inventor score
Files withMITSUBISHI GAS CHEMICAL CO28ISAHAYA YOSHINORI2ARAI YOSHIHISA1MITSUBISHI ENG PLASTICS CORP1
Top patents by PatentIndex Score
32 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
- 1178US10053537B2High-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
- 1278US9428608B2Aromatic polycarbonate resin compositionMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Aug 30, 2016·2 cites·11 claims
- 1378US2022177646A1Aromatic polycarbonate resin composition and aromatic polycarbonate resin manufacturing methodMITSUBISHI GAS CHEMICAL CO·Filed 2022·Application pending·0 cites
- 1475US9546249B2Process for preparing highly polymerized aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Jan 17, 2017·2 cites·15 claims
- 1572US9822218B2Process for producing a high molecular-weight aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2014·Granted Nov 21, 2017·1 cites·15 claims
- 1670US11673856B2Method for producing aromatic nitrile compound and method for producing carbonate esterMITSUBISHI GAS CHEMICAL CO·Filed 2019·Granted Jun 13, 2023·0 cites·11 claims
- 1766US8598292B2Adamantane derivative, method for producing same, polymer using same as starting material, and resin compositionARAI YOSHIHISA·Filed 2010·Granted Dec 3, 2013·1 cites·6 claims
- 1863US2017174833A1High-fluidity polycarbonate copolymer, process for production highly polymerized aromatic polycarbonate resin and aromatic polycarbonate compoundMITSUBISHI GAS CHEMICAL CO·Filed 2017·Application pending·0 cites
- 1962US9458290B2Process for preparing highly polymerized aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Oct 4, 2016·0 cites·5 claims
- 2062US2019085123A1Aromatic polycarbonate resin composition and aromatic polycarbonate resin manufacturing methodMITSUBISHI GAS CHEMICAL CO·Filed 2017·Application pending·0 cites
- 2160US12359062B2Polycarbonate resin, method for producing same, polycarbonate resin composition and molded bodyMITSUBISHI GAS CHEMICAL CO·Filed 2020·Granted Jul 15, 2025·0 cites·16 claims
- 2259US12304998B2Polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2020·Granted May 20, 2025·0 cites·9 claims
- 2359US2022389159A1Polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2020·Application pending·0 cites
- 2458US6521781B2Production of 2-hydrocarbyl-2-adamantyl acrylate compoundsMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Feb 18, 2003·2 cites·22 claims
- 2556US9701788B2Method for producing branched aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Jul 11, 2017·0 cites·14 claims
- 2652US9243106B2Method for continuous production of high molecular weight polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Jan 26, 2016·0 cites·13 claims
- 2751US11014869B2Method for producing dialkyl carbonateMITSUBISHI GAS CHEMICAL CO·Filed 2018·Granted May 25, 2021·0 cites·9 claims
- 2850US11021571B2Manufacturing method for high molecular weight aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2017·Granted Jun 1, 2021·0 cites·20 claims
- 2948US10927216B2Manufacturing method for high molecular weight aromatic polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2017·Granted Feb 23, 2021·0 cites·16 claims
- 3048US10894860B2High molecular weight aromatic polycarbonate resin manufacturing methodMITSUBISHI GAS CHEMICAL CO·Filed 2017·Granted Jan 19, 2021·0 cites·10 claims
- 3147US2014371404A1Method for continuous production of high-molecular-weight polycarbonate resinMITSUBISHI GAS CHEMICAL CO·Filed 2012·Application pending·0 cites
- 3241US7067692B2Production method of adamantyl acrylate compoundsMITSUBISHI GAS CHEMICAL CO·Filed 2004·Granted Jun 27, 2006·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →