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Engine exhaust gas recirculation system
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Patent number 11,499,509
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Issue date Nov 15, 2022
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Mazda Motor Corporation
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Tomonori Nishida
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Catalyst for cleaning exhaust gas
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Patent number 6,090,744
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Issue date Jul 18, 2000
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Mazda Motor Corporation
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Yuki Koda
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Catalyst for purifying exhaust gas
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Patent number 5,958,828
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Issue date Sep 28, 1999
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Mazda Motor Corporation
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Hiroshi Murakami
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Catalyst for purifying exhaust gas
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Patent number 5,849,660
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Issue date Dec 15, 1998
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Mazda Motor Corporation
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Takashi Takemoto
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL