Patents by Inventor Yasuaki Ikitsu

Yasuaki Ikitsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for joining new electrode to consumed electrode of electric furnace
    Patent number: 5757841
    Abstract: A new electrode is joined to a consumed electrode of the electric furnace according to a method comprising the steps of lifting and transporting the new electrode suspended from a joining apparatus by a crane, aligning both electrodes by throwing a laser beam from a projector disposed to the crane on a positioning marker disposed on a deck plate provided in the vicinity of the electric furnace, screwing a screw thread of the new electrode into a threaded hole of the consumed electrode by actuating an electric motor disposed in the joining apparatus, and tightening both electrodes at desired tightening torque by operating the motor in a stalled state with a small electric current of low frequency.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: May 26, 1998
    Assignee: Daido Tokushuko Kabushiki Kaisha
    Inventors: Yasuaki Ikitsu, Hajime Amano, Nobuyuki Kamei, Tetsuo Okamoto
  • Method and apparatus for joining new electrode to consumed electrode of electric furnace
    Patent number: 5638398
    Abstract: A new electrode is joined to a consumed electrode of the electric furnace according to a method comprising the steps of lifting and transporting the new electrode suspended from a joining apparatus by a crane, aligning both electrodes by throwing a laser beam from a projector disposed to the crane on a positioning marker disposed on a deck plate provided in the vicinity of the electric furnace, screwing a screw thread of the new electrode into a threaded hole of the consumed electrode by actuating an electric motor disposed in the joining apparatus, and tightening both electrodes at desired tightening torque by operating the motor in a stalled state with a small electric current of low frequency.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: June 10, 1997
    Assignee: Daido Tokushuko Kabushiki Kaisha
    Inventors: Yasuaki Ikitsu, Hajime Amano, Nobuyuki Kamei, Tetsuo Okamoto