Etsuroh Nakao

Person

  • Ibaraki, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Filter material

    • Patent number 5,738,788
    • Issue date Apr 14, 1998
    • Japan Vilene Company Ltd.
    • Takashi Tokiwa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL