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Chiaki Izumikawa
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for decomposing nitrogen fluoride or sulfur fluoride and dec...
Patent number
6,416,726
Issue date
Jul 9, 2002
Showa Denko K.K.
Chiaki Izumikawa
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for decomposing fluorocarbons reagent and apparatus used th...
Patent number
6,294,709
Issue date
Sep 25, 2001
Dowa Mining Co., Ltd.
Chiaki Izumikawa
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Reagent for decomposing fluorocarbons
Patent number
6,022,489
Issue date
Feb 8, 2000
Dowa Mining Co., Ltd.
Chiaki Izumikawa
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method of separating and recovering valuable metals and non-metals...
Patent number
5,630,554
Issue date
May 20, 1997
Dowa Mining Co., Ltd.
Chiaki Izumikawa
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Patents Applications
last 30 patents
Information
Patent Application
Method for decomposing nitrogen fluoride or sulfur fluoride and dec...
Publication number
20010013590
Publication date
Aug 16, 2001
Chiaki Izumikawa
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL