TREA

Katsuji Watabe

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  • Fujimi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Image forming apparatus
    • Patent number 5,640,645
    • Issue date Jun 17, 1997
    • Ricoh Company, Ltd.
    • Shinichi Namekata
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing device for image forming equipment
    • Patent number 5,384,628
    • Issue date Jan 24, 1995
    • Ricoh Company, Ltd.
    • Nobuo Takami
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Ozone removing device for image forming equipment
    • Patent number 5,128,110
    • Issue date Jul 7, 1992
    • Ricoh Company, Ltd.
    • Setsuo Soga
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY