Tsuyoshi Yamamoto

Person

  • Yokohama, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Preparation process of toner

    • Patent number 5,217,839
    • Issue date Jun 8, 1993
    • Nippon Zeon Co., Ltd.
    • Fumio Yamada
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY