TREA

Susumu Akimaru

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electronic blackboard
    • Patent number 5,181,129
    • Issue date Jan 19, 1993
    • Hitachi, Ltd.
    • Kunio Sato
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Method for forming multi-color toner image
    • Patent number 4,822,702
    • Issue date Apr 18, 1989
    • Hitachi, Ltd.
    • Nobuyoshi Hoshi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 4,545,325
    • Issue date Oct 8, 1985
    • Hitachi, Ltd.
    • Isamu Komatsu
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY