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Ken Umehara
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Higashihiroshima, JP
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last 30 patents
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Patent Grant
Method of and system for purifying exhaust gas for engines
Patent number
5,950,419
Issue date
Sep 14, 1999
Mazda Motor Corporation
Hirofumi Nishimura
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Warming-up system for warming up an engine for an automotive vehicle
Patent number
5,293,741
Issue date
Mar 15, 1994
Mazda Motor Corporation
Kenji Kashiyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Exhaust control system for internal combustion engine
Patent number
5,233,831
Issue date
Aug 10, 1993
Mazda Motor Corporation
Mitsuto Hitomi
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS