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Kazutoyo Watanabe
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Fukuoka-ken, JP
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Patents Grants
last 30 patents
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Patent Grant
Ceramic honeycomb filter and its production method
Patent number
7,578,864
Issue date
Aug 25, 2009
Hitachi Metals, Ltd.
Kazutoyo Watanabe
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Patents Applications
last 30 patents
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Patent Application
Ceramic Honeycomb Filter, Exhaust Gas-Cleaning Apparatus, and Exhau...
Publication number
20070277511
Publication date
Dec 6, 2007
Hirohisa Suwabe
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL