Inventor

Motoharu Takeuchi

Inventor

Tokyo, JP

Overview

1998–2018

Patent span

Chemistry

Primary field (CPC C)

Patents· 40 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Gprimary

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds28%

G02BOptical elements, systems or apparatus23%

C08LCompositions of macromolecular compounds11%

C07DHeterocyclic compounds8%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients7%

G02CSpectacles3%

C07CAcyclic or carbocyclic compounds2%

C09DCoating compositions, e.g. paints, varnishes or lacquers2%

D06PDyeing or printing textiles2%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices2%

PatentTitleYear

10,138,123Method for regenerating working solution used for production of hydrogen peroxide and method for producing hydrogen peroxide using regenerated working solution2018 9,529,117'Polymerizable composition for optical material, method for producing same, and method for producing optical material'2016 9,518,153'Polymerizable composition for optical materials'2016 9,458,293'Method for producing composition for optical material'2016 9,376,603'Polymerizable composition, and cured article'2016 9,150,694'Composition for use in optical material with high refractive index and high strength'2015 9,133,151'Method for producing bis(Î²-epdxypropyl)sulfide and bis(Î²-epdxypropyl)polysulfide'2015 8,853,346'Curable resin composition'2014 8,642,718'Curable composition'2014 8,575,293'Resin composition for optical material and optical material using the same'2013 8,512,813'Coating composition, coating film made of same, and optical article'2013 8,394,920'Composition for resin and optical lens obtained therefrom'2013 8,389,671'Resin composition for optical member and optical member obtained from the same'2013 7,691,555'Photocurable composition and coating composition'2010 7,446,163'Polymerization regulator and composition for resin'2008 7,350,917'Light control plastic lens, coated sheet-like light control element for the lens production, and a production method for light control plastic lens'2008 7,309,794'Method of storing episulfide compound'2007 7,301,705'Alicyclic compound for optical material'2007 7,300,747'Photobase generator and curable composition'2007 7,183,441'Method for producing vicinal dithiol'2007 7,169,845'Polymerization regulators and compositions for resin'2007 7,091,307'Composition for optical material'2006 7,026,372'Enic compounds, sulfur-containing polyenic compound, sulfur-containing polythiol compound, high refractive index photocurable composition and cured product thereof'2006 7,009,031'Composition for optical material'2006 6,960,640'Composition for optical material'2005 6,872,333'Enic compounds, sulfur-containing polyenic compound, sulfur-containing polythiol compound, high refractive index photocurable composition and cured product thereof'2005 6,534,589'Process for producing a resin having a large refractive index'2003 6,531,532'Composition for optical materials'2003 6,528,005'Process for producing a lens by polymerizing bis(-epithiopropyl) ether'2003 6,472,495'Composition for producing resin'2002 6,444,146'Process for production of optical material'2002 6,365,223'Process for tinting a resin for optical materials'2002 6,225,439'Compositions for a resin'2001 6,201,061'Process for producing a novel resin for optical materials having excellent color tone and transparency'2001 6,197,226'Process for tinting a resin having a large refractivity index and optical material tinted by the process'2001 6,180,753'Process for treating a compound having epithio structures for disposal'2001 6,130,307'Composition for a resin'2000 6,117,923'Resin for optical material'2000 5,945,504'Episulfide compound'1999 5,807,975'Alkyl sulfide type episulfide compound'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2018Patents assigned to MITSUBISHI GAS CHEMICAL CO (40)· patent assignee history

1998–2014Based in Tokyo, JP· patent location history

2013–2015Patents assigned to TAKEUCHI MOTOHARU (7)· patent assignee history

2013–2015Patents assigned to AOKI TAKASHI (2)· patent assignee history

2013Patents assigned to HORIKOSHI HIROSHI (2)· patent assignee history

2013–2015Patents assigned to ISHIZUKA HIROHITO (2)· patent assignee history

2014–2018Based in Ibaraki, JP· patent location history

2015Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBISHI GAS CHEMICAL CO	40	1998–2018
TAKEUCHI MOTOHARUself	7	2013–2015
AOKI TAKASHI	2	2013–2015
HORIKOSHI HIROSHI	2	2013
ISHIZUKA HIROHITO	2	2013–2015

Locations

Location	Patents	Span
Tokyo, JP	32	1998–2014
Ibaraki, JP	7	2014–2018
Chiba, JP	1	2015