Mutsumi Kato

Person

  • Koga-gun, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Cold deep hole forming device

    • Patent number 6,161,415
    • Issue date Dec 19, 2000
    • Gohsyu Corporation
    • Tadashi Okumura
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...