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Air flow meter
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Patent number 5,325,712
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Issue date Jul 5, 1994
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Hitachi, Ltd.
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Mitsukuni Tsutsui
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G01 - MEASURING TESTING
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Hot wire air flow meter
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Patent number RE34104
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Issue date Oct 20, 1992
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Hitachi, Ltd.
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Minoru Takahashi
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073 - Measuring and testing
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Electronic noise attenuation system
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Patent number 5,018,202
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Issue date May 21, 1991
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Hitachi Plant Engineering & Construction Co., Ltd.
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Minoru Takahashi
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Hot wire air flow meter
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Patent number 4,790,182
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Issue date Dec 13, 1988
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Hitachi, Ltd.
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Minoru Takahashi
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G01 - MEASURING TESTING
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Electronic noise attenuation system
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Patent number 4,783,817
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Issue date Nov 8, 1988
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Hitachi Plant Engineering and Construction Co., Ltd.
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Hareo Hamada
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Pressure transducer
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Patent number 4,325,260
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Issue date Apr 20, 1982
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Hitachi, Ltd.
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Minoru Takahashi
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G01 - MEASURING TESTING
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