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Semiconductor laser device
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Patent number 4,432,091
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Issue date Feb 14, 1984
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Hitachi, Ltd.
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Takao Kuroda
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H01 - BASIC ELECTRIC ELEMENTS
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Semiconductor laser device
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Patent number 4,426,703
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Issue date Jan 17, 1984
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Hitachi, Ltd.
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Takao Kuroda
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H01 - BASIC ELECTRIC ELEMENTS
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Semiconductor laser device
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Patent number 4,369,513
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Issue date Jan 18, 1983
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Hitachi, Ltd.
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Jun-ichi Umeda
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H01 - BASIC ELECTRIC ELEMENTS
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Semiconductor laser device
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Patent number 4,288,757
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Issue date Sep 8, 1981
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Hitachi, Ltd.
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Takashi Kajimura
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H01 - BASIC ELECTRIC ELEMENTS
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Semiconductor laser device
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Patent number 4,257,011
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Issue date Mar 17, 1981
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Hitachi, Ltd.
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Michiharu Nakamura
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H01 - BASIC ELECTRIC ELEMENTS
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Semiconductor laser device
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Patent number 4,176,325
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Issue date Nov 27, 1979
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Hitachi, Ltd.
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Takashi Kajimura
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H01 - BASIC ELECTRIC ELEMENTS