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Hiroshi Yoshioka

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  • Hachioji, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrophotographic photoreceptor
    • Patent number 5,190,839
    • Issue date Mar 2, 1993
    • Konica Corporation
    • Yoshihide Fujimaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electrophotographic photoreceptor having a light-sensitive layer fo...
    • Patent number 5,114,815
    • Issue date May 19, 1992
    • Konica Corporation
    • Yasuhiro Oda
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photoreceptor
    • Patent number 5,013,625
    • Issue date May 7, 1991
    • Konica Corporation
    • Yoshio Takizawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY