TREA

Tuyoshi Koyama

Follow

Person

  • Ibaraki, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Fixing device and image forming apparatus
    • Patent number 7,142,803
    • Issue date Nov 28, 2006
    • Ricoh Printing Systems, Ltd.
    • Tuyoshi Koyama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

  • Information Patent Application

    Fixing device and image forming apparatus
    • Publication number 20050147436
    • Publication date Jul 7, 2005
    • Ricoh Printing Systems, Ltd.
    • Tuyoshi Koyama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY