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Shigetoshi Kuma
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Fukuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Thiol-containing composition for optical material and polymerizable...
Patent number
11,840,599
Issue date
Dec 12, 2023
Mitsui Chemicals, Inc.
Takeshi Nishimura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Xylylenediisocyanate composition, xylylenediisocyanate-modified com...
Patent number
11,254,783
Issue date
Feb 22, 2022
Mitsui Chemicals, Inc.
Satoshi Yamasaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing (poly)sulfide compound and process for produc...
Patent number
10,844,010
Issue date
Nov 24, 2020
Mitsui Chemicals, Inc.
Koichi Tokunaga
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing cyanonorbornene
Patent number
10,774,038
Issue date
Sep 15, 2020
Mitsui Chemicals, Inc.
Shigetoshi Kuma
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing pentaerythritol mercaptocarboxylic acid ester...
Patent number
10,696,627
Issue date
Jun 30, 2020
Mitsui Chemicals, Inc.
Shigetoshi Kuma
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Xylylenediisocyanate composition, xylylenediisocyanate-modified com...
Patent number
10,640,605
Issue date
May 5, 2020
Mitsui Chemicals, Inc.
Satoshi Yamasaki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Purification method of aldehyde compound
Patent number
10,399,929
Issue date
Sep 3, 2019
Mitsui Chemicals, Inc.
Naoyuki Kakinuma
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Purification method of aldehyde compound
Patent number
10,399,930
Issue date
Sep 3, 2019
Mitsui Chemicals, Inc.
Naoyuki Kakinuma
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymerizable composition for optical material, optical material pr...
Patent number
10,196,501
Issue date
Feb 5, 2019
Mitsui Chemicals, Inc.
Takayuki Hanawa
G02 - OPTICS
Information
Patent Grant
Polymerizable composition for optical material, optical material ob...
Patent number
10,131,767
Issue date
Nov 20, 2018
Mitsui Chemicals, Inc.
Shinsuke Ito
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Purification method of aldehyde compound
Patent number
9,809,533
Issue date
Nov 7, 2017
Mitsui Chemicals, Inc.
Naoyuki Kakinuma
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymerizable composition for optical material
Patent number
9,678,246
Issue date
Jun 13, 2017
Mitsui Chemicals, Inc.
Nobuo Kawato
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Preparation method of aldehyde compound with limited amount of acry...
Patent number
9,487,475
Issue date
Nov 8, 2016
Mitsui Chemicals, Inc.
Koichi Tokunaga
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation method of aldehyde compound using a metal compound and...
Patent number
9,475,760
Issue date
Oct 25, 2016
Mitsui Chemicals, Inc.
Koichi Tokunaga
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing polyurethane resin
Patent number
9,464,154
Issue date
Oct 11, 2016
Mitsui Chemicals, Inc.
Nobuo Kawato
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for producing aldehyde compounds
Patent number
9,227,925
Issue date
Jan 5, 2016
Mitsui Chemicals, Inc.
Shigetoshi Kuma
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polyurethanes polymerizable composition and method for producing op...
Patent number
8,772,441
Issue date
Jul 8, 2014
Mitsui Chemicals, Inc.
Shigetoshi Kuma
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing resin for optical material
Patent number
8,044,165
Issue date
Oct 25, 2011
Mitsui Chemicals, Inc.
Masaru Kawaguchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Thiourethane-based optical material
Patent number
7,396,900
Issue date
Jul 8, 2008
Mitsui Chemicals, Inc.
Mamoru Tanaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Thiourethane-based optical material
Patent number
7,244,808
Issue date
Jul 17, 2007
Mitsui Chemicals, Inc.
Mamoru Tanaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polythiol compound
Patent number
6,770,734
Issue date
Aug 3, 2004
Mitsui Chemicals, Inc.
Mamoru Tanaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing a thiol compound
Patent number
6,770,735
Issue date
Aug 3, 2004
Mitsui Chemicals, Inc.
Mamoru Tanaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polythiol, polymerizable composition, resin and lens, and process f...
Patent number
6,596,841
Issue date
Jul 22, 2003
Mitsui Chemicals, Inc.
Mamoru Tanaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
THIOL-CONTAINING COMPOSITION FOR OPTICAL MATERIAL AND POLYMERIZABLE...
Publication number
20220204679
Publication date
Jun 30, 2022
Mitsui Chemicals, Inc.
Takeshi NISHIMURA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING CYANONORBORNENE
Publication number
20200239408
Publication date
Jul 30, 2020
Mitsui Chemicals, Inc.
Shigetoshi KUMA
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Xylylenediisocyanate composition, xylylenediisocyanate-modified com...
Publication number
20200190249
Publication date
Jun 18, 2020
Mitsui Chemicals, Inc.
Satoshi YAMASAKI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Xylylenediisocyanate composition, xylylenediisocyanate-modified com...
Publication number
20190292304
Publication date
Sep 26, 2019
Mitsui Chemicals, Inc.
Satoshi YAMASAKI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
XYLYLENE DIISOCYANATE COMPOSITION, RESIN, AND POLYMERIZABLE COMPOSI...
Publication number
20190106529
Publication date
Apr 11, 2019
Shigetoshi KUMA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING (POLY)SULFIDE COMPOUND AND PROCESS FOR PRODUC...
Publication number
20190077751
Publication date
Mar 14, 2019
Mitsui Chemicals, Inc.
Koichi Tokunaga
G02 - OPTICS
Information
Patent Application
PROCESS FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ACID ESTER...
Publication number
20180186733
Publication date
Jul 5, 2018
Mitsui Chemicals, Inc.
Shigetoshi KUMA
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PURIFICATION METHOD OF ALDEHYDE COMPOUND
Publication number
20180093944
Publication date
Apr 5, 2018
Mitsui Chemicals, Inc.
Naoyuki KAKINUMA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
PURIFICATION METHOD OF ALDEHYDE COMPOUND
Publication number
20180093945
Publication date
Apr 5, 2018
Mitsui Chemicals, Inc.
Naoyuki KAKINUMA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, OPTICAL MATERIAL PR...
Publication number
20170051131
Publication date
Feb 23, 2017
Mitsui Chemicals, Inc.
Takayuki HANAWA
G02 - OPTICS
Information
Patent Application
POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, OPTICAL MATERIAL OB...
Publication number
20160272784
Publication date
Sep 22, 2016
Mitsui Chemicals, Inc.
Shinsuke ITO
G02 - OPTICS
Information
Patent Application
FILM COMPRISING COPOLYMER OR COMPOSITION
Publication number
20160046827
Publication date
Feb 18, 2016
Mitsui Chemicals, Inc.
Koju OKAZAKI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
PROCESS FOR PRODUCING POLYURETHANE RESIN
Publication number
20150315327
Publication date
Nov 5, 2015
Mitsui Chemicals, Inc.
Nobuo KAWATO
G02 - OPTICS
Information
Patent Application
PREPARATION METHOD OF ALDEHYDE COMPOUND
Publication number
20150299109
Publication date
Oct 22, 2015
Mitsui Chemicals, Inc.
Koichi Tokunaga
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PREPARATION METHOD OF ALDEHYDE COMPOUND
Publication number
20150299108
Publication date
Oct 22, 2015
Mitsui Chemicals, Inc.
Koichi Tokunaga
C07 - ORGANIC CHEMISTRY
Information
Patent Application
POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL
Publication number
20150293265
Publication date
Oct 15, 2015
Mitsui Chemicals, Inc.
Nobuo Kawato
G02 - OPTICS
Information
Patent Application
PURIFICATION METHOD OF ALDEHYDE COMPOUND
Publication number
20150291513
Publication date
Oct 15, 2015
Mitsui Chemicals, Inc.
Naoyuki Kakinuma
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PROCESS FOR PRODUCING ALDEHYDE COMPOUNDS
Publication number
20140088321
Publication date
Mar 27, 2014
Mitsui Chemicals, Inc.
Shigetoshi Kuma
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PROCESS FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ESTERS AND...
Publication number
20110245530
Publication date
Oct 6, 2011
MITSUI CHEMICALS, INC.
Michiharu Sakata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ACID ESTER...
Publication number
20110245531
Publication date
Oct 6, 2011
MITSUI CHEMICALS, INC.
Shigetoshi KUMA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for Producing Polythiol Compound for Optical Materials, and...
Publication number
20110176220
Publication date
Jul 21, 2011
MITSUI CHEMICALS, INC.
Shigetoshi KUMA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING (POLY)THIOL COMPOUND FOR USE AS OPTICAL MATER...
Publication number
20110178264
Publication date
Jul 21, 2011
MITSUI CHEMICALS, INC.
Shigetoshi Kuma
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ACID ESTER...
Publication number
20110065887
Publication date
Mar 17, 2011
Mitsui Chemicals, Inc.
Shigetoshi KUMA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING (POLY)THIOL COMPOUND FOR USE AS OPTICAL MATER...
Publication number
20100298521
Publication date
Nov 25, 2010
MITSUI CHEMICALS, INC.
Shigetoshi Kuma
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ESTERS AND...
Publication number
20100292431
Publication date
Nov 18, 2010
MITSUI CHEMICALS, INC.
Michiharu Sakata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING POLYTHIOL COMPOUND FOR OPTICAL MATERIALS, AND...
Publication number
20100280213
Publication date
Nov 4, 2010
MITSUI CHEMICALS, INC.
Shigetoshi KUMA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING RESIN FOR OPTICAL MATERIAL
Publication number
20100010192
Publication date
Jan 14, 2010
Mitsui Chemicals, Inc.
Masaru Kawaguchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ESTERS AND...
Publication number
20090281269
Publication date
Nov 12, 2009
MITSUI CHEMICALS, INC.
Michiharu Sakata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for Producing Pentaerythritol Mercaptocarboxylic Acid Ester...
Publication number
20090270583
Publication date
Oct 29, 2009
MITSUI CHEMICALS, INC.
Shigetoshi Kuma
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING (POLY)THIOL COMPOUND FOR USE AS OPTICAL MATER...
Publication number
20090264613
Publication date
Oct 22, 2009
Mitsui Chemicals, Inc.
Shigetoshi Kuma
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...