Inventor
TAKEUCHI MOTOHARU
JP40 patents
⚠️ This page may combine multiple inventors who share the name “TAKEUCHI MOTOHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI GAS CHEMICAL CO
32 patentsUS5807975ASep 15, 1998
Alkyl sulfide type episulfide compound
MITSUBISHI GAS CHEMICAL CO121 citations98
US6472495B1Oct 29, 2002
Composition for producing resin
MITSUBISHI GAS CHEMICAL CO57 citations96
US6117923ASep 12, 2000
Resin for optical material
MITSUBISHI GAS CHEMICAL CO100 citations96
US5945504AAug 31, 1999
Episulfide compound
MITSUBISHI GAS CHEMICAL CO115 citations96
US6130307AOct 10, 2000
Composition for a resin
MITSUBISHI GAS CHEMICAL CO57 citations95
US6531532B1Mar 11, 2003
Composition for optical materials
MITSUBISHI GAS CHEMICAL CO24 citations92
US6528005B2Mar 4, 2003
Process for producing a lens by polymerizing bis(β-epithiopropyl) ether
MITSUBISHI GAS CHEMICAL CO19 citations92
US6444146B2Sep 3, 2002
Process for production of optical material
MITSUBISHI GAS CHEMICAL CO30 citations92
US6201061B1Mar 13, 2001
Process for producing a novel resin for optical materials having excellent color tone and transparency
MITSUBISHI GAS CHEMICAL CO24 citations92
US7300747B2Nov 27, 2007
Photobase generator and curable composition
MITSUBISHI GAS CHEMICAL CO26 citations91
US7009031B2Mar 7, 2006
Composition for optical material
MITSUBISHI GAS CHEMICAL CO13 citations84
US7301705B2Nov 27, 2007
Alicyclic compound for optical material
MITSUBISHI GAS CHEMICAL CO17 citations83
US6534589B1Mar 18, 2003
Process for producing a resin having a large refractive index
MITSUBISHI GAS CHEMICAL CO16 citations83
US7169845B2Jan 30, 2007
Polymerization regulators and compositions for resin
MITSUBISHI GAS CHEMICAL CO7 citations74
US6180753B1Jan 30, 2001
Process for treating a compound having epithio structures for disposal
MITSUBISHI GAS CHEMICAL CO9 citations74
US7309794B1Dec 18, 2007
Method of storing episulfide compound
MITSUBISHI GAS CHEMICAL CO7 citations73
US7026372B2Apr 11, 2006
Enic compounds, sulfur-containing polyenic compound, sulfur-containing polythiol compound, high refractive index photocurable composition and cured product thereof
MITSUBISHI GAS CHEMICAL CO5 citations73
US6872333B2Mar 29, 2005
Enic compounds, sulfur-containing polyenic compound, sulfur-containing polythiol compound, high refractive index photocurable composition and cured product thereof
MITSUBISHI GAS CHEMICAL CO11 citations73
US6197226B1Mar 6, 2001
Process for tinting a resin having a large refractivity index and optical material tinted by the process
MITSUBISHI GAS CHEMICAL CO14 citations73
US6225439B1May 1, 2001
Compositions for a resin
MITSUBISHI GAS CHEMICAL CO12 citations72
US9376603B2Jun 28, 2016
Polymerizable composition, and cured article
MITSUBISHI GAS CHEMICAL CO3 citations71
US7183441B2Feb 27, 2007
Method for producing vicinal dithiol
MITSUBISHI GAS CHEMICAL CO5 citations63
US7091307B2Aug 15, 2006
Composition for optical material
MITSUBISHI GAS CHEMICAL CO6 citations63
US6365223B1Apr 2, 2002
Process for tinting a resin for optical materials
MITSUBISHI GAS CHEMICAL CO6 citations62
US9458293B2Oct 4, 2016
Method for producing composition for optical material
MITSUBISHI GAS CHEMICAL CO2 citations61
US6960640B2Nov 1, 2005
Composition for optical material
MITSUBISHI GAS CHEMICAL CO4 citations61
US9133151B2Sep 15, 2015
Method for producing bis(β-epdxypropyl)sulfide and bis(β-epdxypropyl)polysulfide
MITSUBISHI GAS CHEMICAL CO0 citations52
US7446163B2Nov 4, 2008
Polymerization regulator and composition for resin
MITSUBISHI GAS CHEMICAL CO0 citations52
US10138123B2Nov 27, 2018
Method for regenerating working solution used for production of hydrogen peroxide and method for producing hydrogen peroxide using regenerated working solution
MITSUBISHI GAS CHEMICAL CO0 citations46
US9529117B2Dec 27, 2016
Polymerizable composition for optical material, method for producing same, and method for producing optical material
MITSUBISHI GAS CHEMICAL CO1 citations46
US7691555B2Apr 6, 2010
Photocurable composition and coating composition
MITSUBISHI GAS CHEMICAL CO0 citations41
US9518153B2Dec 13, 2016
Polymerizable composition for optical materials
MITSUBISHI GAS CHEMICAL CO0 citations40