Inventor · disambiguated record
Motoharu Takeuchi
Also filed as: TAKEUCHI MOTOHARU
40 granted patents·7 pending applications·758 citations·filing 1996–2014
98Inventor score
Files withMITSUBISHI GAS CHEMICAL CO33OKADA HIROYUKI3HORIKOSHI HIROSHI2TAKEUCHI MOTOHARU2AOKI TAKASHI1
Top patents by PatentIndex Score
47 records- 0197US5807975AAlkyl sulfide type episulfide compoundMITSUBISHI GAS CHEMICAL CO·Filed 1996·Granted Sep 15, 1998·121 cites·15 claims
- 0295US6472495B1Composition for producing resinMITSUBISHI GAS CHEMICAL CO·Filed 2000·Granted Oct 29, 2002·57 cites·12 claims
- 0395US5945504AEpisulfide compoundMITSUBISHI GAS CHEMICAL CO·Filed 1997·Granted Aug 31, 1999·115 cites·17 claims
- 0494US6117923AResin for optical materialMITSUBISHI GAS CHEMICAL CO·Filed 1998·Granted Sep 12, 2000·100 cites·17 claims
- 0588US9150694B2Composition for use in optical material with high refractive index and high strengthAOKI TAKASHI·Filed 2010·Granted Oct 6, 2015·11 cites·9 claims
- 0688US6528005B2Process for producing a lens by polymerizing bis(β-epithiopropyl) etherMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Mar 4, 2003·19 cites·10 claims
- 0785US9376603B2Polymerizable composition, and cured articleMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Jun 28, 2016·3 cites·9 claims
- 0885US7301705B2Alicyclic compound for optical materialMITSUBISHI GAS CHEMICAL CO·Filed 2002·Granted Nov 27, 2007·17 cites·12 claims
- 0985US7183441B2Method for producing vicinal dithiolMITSUBISHI GAS CHEMICAL CO·Filed 2005·Granted Feb 27, 2007·5 cites·7 claims
- 1085US6444146B2Process for production of optical materialMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Sep 3, 2002·30 cites·10 claims
- 1184US7300747B2Photobase generator and curable compositionMITSUBISHI GAS CHEMICAL CO·Filed 2005·Granted Nov 27, 2007·26 cites·19 claims
- 1283US7350917B2Light control plastic lens, coated sheet-like light control element for the lens production, and a production method for light control plastic lensMGC FILSEET CO LTD·Filed 2005·Granted Apr 1, 2008·31 cites·14 claims
- 1381US6531532B1Composition for optical materialsMITSUBISHI GAS CHEMICAL CO·Filed 2000·Granted Mar 11, 2003·24 cites·17 claims
- 1481US6130307AComposition for a resinMITSUBISHI GAS CHEMICAL CO·Filed 1999·Granted Oct 10, 2000·57 cites·19 claims
- 1578US6872333B2Enic compounds, sulfur-containing polyenic compound, sulfur-containing polythiol compound, high refractive index photocurable composition and cured product thereofMITSUBISHI GAS CHEMICAL CO·Filed 2003·Granted Mar 29, 2005·11 cites·8 claims
- 1677US9458293B2Method for producing composition for optical materialMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Oct 4, 2016·2 cites·6 claims
- 1776US7309794B1Method of storing episulfide compoundMITSUBISHI GAS CHEMICAL CO·Filed 2000·Granted Dec 18, 2007·7 cites·15 claims
- 1873US6365223B1Process for tinting a resin for optical materialsMITSUBISHI GAS CHEMICAL CO·Filed 2000·Granted Apr 2, 2002·6 cites·4 claims
- 1971US7009031B2Composition for optical materialMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Mar 7, 2006·13 cites·15 claims
- 2069US7169845B2Polymerization regulators and compositions for resinMITSUBISHI GAS CHEMICAL CO·Filed 2002·Granted Jan 30, 2007·7 cites·19 claims
- 2168US8389671B2Resin composition for optical member and optical member obtained from the sameTAKEUCHI MOTOHARU·Filed 2008·Granted Mar 5, 2013·2 cites·22 claims
- 2268US7026372B2Enic compounds, sulfur-containing polyenic compound, sulfur-containing polythiol compound, high refractive index photocurable composition and cured product thereofMITSUBISHI GAS CHEMICAL CO·Filed 2004·Granted Apr 11, 2006·5 cites·10 claims
- 2367US8394920B2Composition for resin and optical lens obtained therefromTAKEUCHI MOTOHARU·Filed 2009·Granted Mar 12, 2013·1 cites·8 claims
- 2466US6197226B1Process for tinting a resin having a large refractivity index and optical material tinted by the processMITSUBISHI GAS CHEMICAL CO·Filed 1998·Granted Mar 6, 2001·14 cites·20 claims
- 2565US7091307B2Composition for optical materialMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Aug 15, 2006·6 cites·16 claims
- 2661US8512813B2Coating composition, coating film made of same, and optical articleOKADA HIROYUKI·Filed 2012·Granted Aug 20, 2013·0 cites·14 claims
- 2761US6201061B1Process for producing a novel resin for optical materials having excellent color tone and transparencyMITSUBISHI GAS CHEMICAL CO·Filed 1999·Granted Mar 13, 2001·24 cites·18 claims
- 2859US6960640B2Composition for optical materialMITSUBISHI GAS CHEMICAL CO·Filed 2002·Granted Nov 1, 2005·4 cites·16 claims
- 2958US9133151B2Method for producing bis(β-epdxypropyl)sulfide and bis(β-epdxypropyl)polysulfideMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Sep 15, 2015·0 cites·6 claims
- 3058US8575293B2Resin composition for optical material and optical material using the sameHORIKOSHI HIROSHI·Filed 2007·Granted Nov 5, 2013·2 cites·10 claims
- 3157US7446163B2Polymerization regulator and composition for resinMITSUBISHI GAS CHEMICAL CO·Filed 2005·Granted Nov 4, 2008·0 cites·19 claims
- 3256US9529117B2Polymerizable composition for optical material, method for producing same, and method for producing optical materialMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Dec 27, 2016·1 cites·9 claims
- 3355US10138123B2Method for regenerating working solution used for production of hydrogen peroxide and method for producing hydrogen peroxide using regenerated working solutionMITSUBISHI GAS CHEMICAL CO·Filed 2014·Granted Nov 27, 2018·0 cites·10 claims
- 3455US2007149639A1Polymerizable composition, optical material comprising the composition and method for producing the materialHORIKOSHI HIROSHI·Filed 2007·Application pending·0 cites
- 3554US6225439B1Compositions for a resinMITSUBISHI GAS CHEMICAL CO·Filed 1998·Granted May 1, 2001·12 cites·20 claims
- 3651US6534589B1Process for producing a resin having a large refractive indexMITSUBISHI GAS CHEMICAL CO·Filed 1999·Granted Mar 18, 2003·16 cites·18 claims
- 3748US2006167217A1Coating composition, coating film made of same, and optical articleOKADA HIROYUKI·Filed 2004·Application pending·0 cites
- 3846US9518153B2Polymerizable composition for optical materialsMITSUBISHI GAS CHEMICAL CO·Filed 2013·Granted Dec 13, 2016·0 cites·8 claims
- 3946US2004254258A1Polymerizable composition, optical material comprising the composition and method for producing the materialFiled 2003·Application pending·0 cites
- 4044US7691555B2Photocurable composition and coating compositionMITSUBISHI GAS CHEMICAL CO·Filed 2004·Granted Apr 6, 2010·0 cites·15 claims
- 4144US2016003978A1Composition for optical material and optical material obtained therefromMITSUBISHI GAS CHEMICAL CO·Filed 2014·Application pending·0 cites
- 4242US8853346B2Curable resin compositionOKAZAKI HITOSHI·Filed 2011·Granted Oct 7, 2014·0 cites·6 claims
- 4342US8642718B2Curable compositionKAMURA TERUO·Filed 2006·Granted Feb 4, 2014·0 cites·22 claims
- 4442US6180753B1Process for treating a compound having epithio structures for disposalMITSUBISHI GAS CHEMICAL CO·Filed 1999·Granted Jan 30, 2001·9 cites·3 claims
- 4540US2005227085A1Process for producing hard-coated optical materialsOKADA HIROYUKI·Filed 2005·Application pending·0 cites
- 4638US2004026658A1Composition for optical materialFiled 2001·Application pending·0 cites
- 4736US2003149231A1Episulfide compound and process for producing the sameFiled 2001·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Motoharu Takeuchi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →