TREA

Masao Isoda

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Semiconductive roller
    • Patent number 6,179,761
    • Issue date Jan 30, 2001
    • Oki Data Corporation
    • Masao Isoda
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Cleaning roller
    • Patent number 6,118,970
    • Issue date Sep 12, 2000
    • Oki Data Corporation
    • Masayuki Suzuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Method of cleaning residual toner from drum and rollers of image fo...
    • Patent number 6,081,679
    • Issue date Jun 27, 2000
    • Oki Data Corporation
    • Tsutomu Yamane
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Method of manufacturing developing roller
    • Patent number 5,975,993
    • Issue date Nov 2, 1999
    • Oki Data Corporation
    • Masao Isoda
    • B24 - GRINDING POLISHING