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Toshizumi Hirota
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Osaka, JP
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last 30 patents
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Patent Grant
Light control plastic lens, coated sheet-like light control element...
Patent number
7,350,917
Issue date
Apr 1, 2008
Ryozo Kawai
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for recovering fresh water and apparatus for concentratin...
Patent number
5,468,351
Issue date
Nov 21, 1995
Mitsubishi Corporation
Toshizumi Hirota
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Melt-processable copolyester
Patent number
5,045,627
Issue date
Sep 3, 1991
Mitsubishi Gas Chemical Company, Inc.
Hiroka Tanisake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Copolyester from 1,6-bis(phenoxy)hexane-4,4'-dicarboxylate
Patent number
4,983,707
Issue date
Jan 8, 1991
Mitsubishi Gas Chemical Company, Inc.
Hiroka Tanisake
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
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Patent Application
Light control plastic lens, coated sheet-like light control element...
Publication number
20050168690
Publication date
Aug 4, 2005
FUJI KASEI CO., LTD.
Ryozo Kawai
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL