Takeshi Yanagihara

Person

  • Yokohama, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Diazo copying element

    • Patent number 4,416,967
    • Issue date Nov 22, 1983
    • Ricoh Co., Ltd.
    • Tsutomu Matsuda
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY