Patents by Inventor Tairou Samejima

Tairou Samejima 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).

  • Laser welding method
    Patent number: 6744007
    Abstract: This invention provides a laser welding method capable of supplying a filler wire to a welding object portion in a stabilized condition so as to stabilize welding quality. More specifically, the filler wire is supplied to the welding object portion while the laser beam is projected to the welding object portion. At this time, the filler wire is supplied obliquely from forward or backward in the welding advance direction such that the angle between the supplying direction and beam axis L of the laser beam is less than 45°.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: June 1, 2004
    Assignee: Komatsu Ltd.
    Inventors: Kazuhiko Ono, Kaoru Adachi, Tairou Samejima, Akitoshi Masamura
  • Laser welding method
    Publication number: 20020096500
    Abstract: This invention provides a laser welding method capable of supplying a filler wire to a welding object portion in a stabilized condition so as to stabilize welding quality. More specifically, the filler wire is supplied to the welding object portion while the laser beam is projected to the welding object portion. At this time, the filler wire is supplied obliquely from forward or backward in the welding advance direction such that the angle between the supplying direction and beam axis L of the laser beam is less than 45°.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 25, 2002
    Inventors: Kazuhiko Ono, Kaoru Adachi, Tairou Samejima, Akitoshi Masamura