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Aichi, JP
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last 30 patents
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Patent Grant
Poisoning-preventive layer-possessing support, poisoning-resistant...
Patent number
5,814,285
Issue date
Sep 29, 1998
NGK Spark Plug Co., Ltd.
Takao Kojima
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Poisoning resistant catalyst for exhaust gas converters
Patent number
5,811,064
Issue date
Sep 22, 1998
NGK Spark Plug Co., Ltd.
Takao Kojima
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas converter device
Patent number
5,316,738
Issue date
May 31, 1994
NGK Spark Plug Co., Ltd.
Takao Kojima
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL