TREA

Yoshihiro Katayama

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Toner sealing arrangement for a dry developing device of an electro...
    • Patent number 5,073,797
    • Issue date Dec 17, 1991
    • Matsushita Electric Industrial Co., Ltd.
    • Taizo Ono
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing device
    • Patent number 4,947,211
    • Issue date Aug 7, 1990
    • Matsushita Electric Industrial Co., Ltd.
    • Taizo Ono
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing device
    • Patent number 4,903,634
    • Issue date Feb 27, 1990
    • Matsushita Electric Industrial Co., Ltd.
    • Taizo Ono
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY