Keiji Iwamoto

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Yamaguchi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyimide precursor and polyimide
- Patent number 9,758,623
- Issue date Sep 12, 2017
- UBE Industries, Ltd.
- Ryoichi Takasawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Processes for preparing alkyl 3-(4-tetrahydropyranyl)-3-oxopropanoa...
- Patent number 7,741,497
- Issue date Jun 22, 2010
- Ube Industries, Ltd.
- Shigeyoshi Nishino
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing 4-aminotetrahydropyran compound and an acid s...
- Patent number 7,365,215
- Issue date Apr 29, 2008
- Ube Industries, Ltd.
- Shigeyoshi Nishino
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing nitrile compound, carboxylic acid compound or...
- Patent number 7,300,953
- Issue date Nov 27, 2007
- UBE Industries, Ltd.
- Shigeyoshi Nishino
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
POLYIMIDE PRECURSOR AND POLYIMIDE
- Publication number 20160032056
- Publication date Feb 4, 2016
- Ube Industries, Ltd.
- Ryoichi Takasawa
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
POLYIMIDE PRECURSOR AND POLYIMIDE
- Publication number 20140066571
- Publication date Mar 6, 2014
- Ube Industries, Ltd.
- Ryoichi Takasawa
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
Process for Preparing Tetrahydropyran-4-Carboxylic Acid Compound
- Publication number 20080306287
- Publication date Dec 11, 2008
- Ube Industries, Ltd.
- Shigeyoshi Nishino
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for preparing 4-aminotetrahydropyran compound and an acid s...
- Publication number 20070106083
- Publication date May 10, 2007
- Shigeyoshi Nishino
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Processes for preparing alkyl 3-(4-tetrahydropyranyl)-3-oxopropanoa...
- Publication number 20070043107
- Publication date Feb 22, 2007
- UBE INDUSTRIES, LTD.
- Shigeyoshi Nishino
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for producing nitrile compound, carboxylic acid compound or...
- Publication number 20060287541
- Publication date Dec 21, 2006
- UBE INDUSTRIES, LTD.
- Shigeyoshi Nishino
- C07 - ORGANIC CHEMISTRY