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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 patents
US5807975ASep 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

TAKEUCHI MOTOHARU

2 patents

MGC FILSEET CO LTD

1 patent

AOKI TAKASHI

1 patent

HORIKOSHI HIROSHI

1 patent

OKAZAKI HITOSHI

1 patent

OKADA HIROYUKI

1 patent

KAMURA TERUO

1 patent