TREA

Yukio Shirai

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  • Kawasaki, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Enlarger-printer
    • Patent number 4,043,661
    • Issue date Aug 23, 1977
    • Ricoh Co., Ltd.
    • Hiroshi Yamada
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Jacket holder
    • Patent number 3,965,556
    • Issue date Jun 29, 1976
    • Ricoh Co., Ltd.
    • Fred M. Sanchez
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Apparatus for preparing electrophotographic microfilm
    • Patent number 3,964,828
    • Issue date Jun 22, 1976
    • Ricoh Co., Ltd.
    • Hiroshi Yamada
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY