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Honeycomb regenerator
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Patent number 5,992,504
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Issue date Nov 30, 1999
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NGK Insulators, Ltd.
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Kazuhiko Kumazawa
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F28 - HEAT EXCHANGE IN GENERAL
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Curved honeycomb structural bodies
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Patent number 5,456,965
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Issue date Oct 10, 1995
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NGK Insulators, Ltd.
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Minoru Machida
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Honeycomb stuctural bodies
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Patent number 5,455,097
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Issue date Oct 3, 1995
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NGK Insulators, Ltd.
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Minoru Machida
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Curved honeycomb structural bodies
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Patent number 5,393,587
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Issue date Feb 28, 1995
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NGK Insulators, Ltd.
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Minoru Machida
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES