Sigeru Hirayama

Person

  • Tokyo, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Lithographic printing plate

    • Patent number 4,592,977
    • Issue date Jun 3, 1986
    • Toppan Printing Co., Ltd.
    • Tsutomu Naganuma
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY