Patents by Inventor Koji Muragaki

Koji Muragaki 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).

  • Arc welding cable
    Patent number: 7135655
    Abstract: An arc welding cable that is resistant to bending and twisting and can give a long life is provided. For this purpose, an arc welding cable (65) for supplying a welding current, a welding wire and a sealed gas from a wire feeding device (61) to a welding torch (64), has a passage (4) for the welding wire (2) and sealed gas is located at a center of the arc welding cable and a plurality of conductors (5) are arranged apart from one another on a circumference around the passage (4). The space between the plurality of conductor (5) may be filled with a cushion material such as cotton or elastic synthetic resin.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: November 14, 2006
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Kazuhiro Tomiyasu, Koji Muragaki, Seigo Nishikawa, Kazuhiro Haniya, Atsushi Ichibangase, Shunsuke Maeda, Kazuhiko Nishimura
  • Arc welding cable
    Publication number: 20050150883
    Abstract: An arc welding cable that is resistant to bending and twisting and can give a long life is provided. For this purpose, an arc welding cable (65) for supplying a welding current, a welding wire and a sealed gas from a wire feeding device (61) to a welding torch (64), has a passage (4) for the welding wire (2) and sealed gas is located at a center of the arc welding cable and a plurality of conductors (5) are arranged apart from one another on a circumference around the passage (4). The space between the plurality of conductor (5) may be filled with a cushion material such as cotton or elastic synthetic resin.
    Type: Application
    Filed: February 3, 2003
    Publication date: July 14, 2005
    Inventors: Kazuhiro Tomiyasu, Koji Muragaki, Seigo Nishikawa, Kazuhiro Haniya, Atsushi Ichibangase, Shunsuke Maeda, Kazuhiko Nishimura