Patents by Inventor Koji Seita

Koji Seita 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).

  • Lubricant for wire feeding and wire drawing and a welding wire manufactured by using the same
    Patent number: 5554308
    Abstract: A lubricant for wire feeding and wire drawing which comprises polytetrafluoroethylene powder, 0.5-40 .mu.m (or 0.5-20 .mu.m) in particle diameter, dispersed in water or an aqueous dispersion containing polytetrafluoroethylene powder, 0.1-0.4 .mu.m in particle diameter.A welding wire whose surface is coated with a lubricant mentioned above and a welding wire which has been drawn by the aid of a lubricant mentioned above.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 10, 1996
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Norio Masaie, Tomoyuki Tachibana, Koji Seita, Yasuo Araike