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Masaru Hasegawa
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Shibuya, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Process for production of cross copolymers, cross copolymers obtain...
Patent number
8,722,831
Issue date
May 13, 2014
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Thermoplastic resin composition
Patent number
8,461,264
Issue date
Jun 11, 2013
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Organic photoconductive material and a photosensitive material for...
Patent number
5,569,749
Issue date
Oct 29, 1996
Dainichiseika Color & Chemicals Mfg. Co., Ltd.
Hisao Kouno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Organic photoconductive material and a photosensitive material for...
Patent number
5,506,346
Issue date
Apr 9, 1996
Dainichiseika Color & Chemicals Mfg. Co., Ltd.
Hisao Kouno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Disazo electrophotographic photoreceptor
Patent number
5,344,736
Issue date
Sep 6, 1994
Dainichiseika Color & Chemicals Mfg. Co., Ltd.
Nakaji Komiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor having an azo compound
Patent number
4,931,349
Issue date
Jun 5, 1990
Dainichiseika Color & Chemicals Mfg. Co.
Masaru Hasegawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor comprising azo compound and coupler
Patent number
4,912,001
Issue date
Mar 27, 1990
Dainichi Seika Color & Chemicals Mfg. Co., Ltd.
Hisao Kouno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Prints and production method thereof
Patent number
4,869,532
Issue date
Sep 26, 1989
Dainichiseika Color & Chemicals Mfg. Co., Ltd.
Yoshio Abe
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Patents Applications
last 30 patents
Information
Patent Application
THERMOPLASTIC RESIN COMPOSITION
Publication number
20110040038
Publication date
Feb 17, 2011
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCTION OF CROSS COPOLYMERS, CROSS COPOLYMERS OBTAIN...
Publication number
20090263604
Publication date
Oct 22, 2009
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
TAPE SUBSTRATE AND ADHESIVE TAPE
Publication number
20090202824
Publication date
Aug 13, 2009
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
Mizuki Hasumi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...