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Takaaki Hirai
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Diffusion agent composition, method of forming impurity diffusion l...
Patent number
9,870,924
Issue date
Jan 16, 2018
Tokyo Ohka Kogyo Co., Ltd.
Atsushi Murota
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Diffusion agent composition, method of forming impurity diffusion l...
Patent number
9,620,367
Issue date
Apr 11, 2017
Tokyo Ohka Kogyo Co., Ltd.
Takaaki Hirai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Diffusing agent composition, method of forming impurity diffusion l...
Patent number
8,475,690
Issue date
Jul 2, 2013
Tokyo Ohka Kogyo Co., Ltd.
Takashi Kamizono
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Mask material composition, method of forming impurity diffusion lay...
Patent number
8,372,938
Issue date
Feb 12, 2013
Tokyo Ohka Kogyo Co., Ltd.
Motoki Takahashi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Composition for forming adhesive layer and relief printing plate us...
Patent number
8,076,054
Issue date
Dec 13, 2011
Tokyo Ohka Kogyo Co., Ltd.
Yoshiaki Katayose
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
DIFFUSION AGENT COMPOSITION, METHOD OF FORMING IMPURITY DIFFUSION L...
Publication number
20130061922
Publication date
Mar 14, 2013
Tokyo Ohka Kogyo Co., Ltd.
Atsushi Murota
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DIFFUSION AGENT COMPOSITION, METHOD OF FORMING IMPURITY DIFFUSION L...
Publication number
20120160306
Publication date
Jun 28, 2012
Tokyo Ohka Kogyo Co., Ltd.
Takaaki Hirai
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
MASK MATERIAL COMPOSITION, METHOD OF FORMING IMPURITY DIFFUSION LAY...
Publication number
20110108095
Publication date
May 12, 2011
Tokyo Ohka Kogyo Co., Ltd.
Motoki TAKAHASHI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
DIFFUSING AGENT COMPOSITION, METHOD OF FORMING IMPURITY DIFFUSION L...
Publication number
20110079262
Publication date
Apr 7, 2011
Tokyo Ohka Kogyo Co., Ltd.
Takashi KAMIZONO
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
DIFFUSING AGENT COMPOSITION, METHOD OF FORMING IMPURITY DIFFUSION L...
Publication number
20100175744
Publication date
Jul 15, 2010
Tokyo Ohka Kogyo Co., Ltd.
Takaaki Hirai
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
COMPOSITION FOR FORMING ADHESIVE LAYER AND RELIEF PRINTING PLATE US...
Publication number
20070243486
Publication date
Oct 18, 2007
Tokyo Ohka Kogyo Co., Ltd.
Yoshiaki Katayose
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Water-soluble photopolymer composition for flexographic printing an...
Publication number
20070065751
Publication date
Mar 22, 2007
Tokyo Ohka Kogyo Co., Ltd.
Yoshiaki Katayose
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY