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Masatoshi Maeda
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Osaka, JP
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last 30 patents
Information
Patent Grant
Gas separating membrane having a polycarbodiimide resin layer
Patent number
6,051,677
Issue date
Apr 18, 2000
Nitto Denko Corporation
Masatoshi Maeda
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyimide, a method for manufacturing the same, a gas separation me...
Patent number
5,969,087
Issue date
Oct 19, 1999
Nitto Denko Corporation
Masatoshi Maeda
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Highly permeable composite reverse osmosis membrane, method of prod...
Patent number
5,843,351
Issue date
Dec 1, 1998
Nitto Denko Corporation
Masahiko Hirose
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method of producing the aromatic polyimide
Patent number
5,821,320
Issue date
Oct 13, 1998
Petroleum Energy Center
Masatoshi Maeda
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Fluorine-containing polyimide gas separation membrane and method of...
Patent number
5,817,165
Issue date
Oct 6, 1998
Nitto Denko Corporation
Hisao Hachisuka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Composite reverse osmosis membrane
Patent number
5,674,398
Issue date
Oct 7, 1997
Nitto Denko Corporation
Masahiko Hirose
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Highly permeable composite reverse osmosis membrane, method of prod...
Patent number
5,614,099
Issue date
Mar 25, 1997
Nitto Denko Corporation
Masahiko Hirose
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Acid chloride
Patent number
5,510,527
Issue date
Apr 23, 1996
Nitto Denko Corporation
Hisao Hachisuka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Composite reverse osmosis membrane and novel acid chloride
Patent number
5,336,409
Issue date
Aug 9, 1994
Nitto Denko Corporation
Hisao Hachisuka
C07 - ORGANIC CHEMISTRY