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Semiconductor module
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Patent number 5,705,850
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Issue date Jan 6, 1998
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Hitachi, Ltd.
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Noriyuki Ashiwake
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H01 - BASIC ELECTRIC ELEMENTS
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Electronic apparatus
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Patent number 5,592,363
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Issue date Jan 7, 1997
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Hitachi, Ltd.
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Takayuki Atarashi
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H01 - BASIC ELECTRIC ELEMENTS
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Axial thrust balancing system
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Patent number 4,493,610
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Issue date Jan 15, 1985
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Hitachi, Ltd.
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Toshiki Iino
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES