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Portable electronic computer
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Patent number 6,760,074
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Issue date Jul 6, 2004
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Hitachi, Ltd.
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Yukinobu Maruyama
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G06 - COMPUTING CALCULATING COUNTING
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Information terminal unit
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Patent number 6,466,202
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Issue date Oct 15, 2002
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Hitachi, Ltd.
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Koji Suso
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G06 - COMPUTING CALCULATING COUNTING
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IC card reader and writer
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Patent number D437851
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Issue date Feb 20, 2001
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Hitachi, Ltd.
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Satoko Kojima
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D14 - Recording, communication, or information retrieval equipment
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IC card reader and writer
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Patent number D423471
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Issue date Apr 25, 2000
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Hitachi, Ltd.
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Takeshi Minemoto
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D14 - Recording, communication, or information retrieval equipment
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Computer
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Patent number D406824
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Issue date Mar 16, 1999
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Hitachi, Ltd.
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Takeshi Minemoto
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D14 - Recording, communication, or information retrieval equipment
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Computer
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Patent number D397324
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Issue date Aug 25, 1998
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Hitachi, Ltd.
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Takeshi Minemoto
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D14 - Recording, communication, or information retrieval equipment