Patents by Inventor Kouichi Yaginuma

Kouichi Yaginuma 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).

  • Fiber laser beam processing apparatus
    Patent number: 7436863
    Abstract: A fiber laser beam processing apparatus is configured by a fiber laser oscillator, a laser power source unit, a laser beam injecting unit, a fiber transmission system, a laser beam irradiating unit, a processing table, etc. A portion of a fiber laser beam oscillated and outputted by the fiber laser oscillator is received by a photo diode for monitoring the power through a beam splitter. An output signal of the photo diode is sent to a laser power source unit. The power source unit receives the output signal of the photo diode as a feedback signal and controls a driving current or an excitation current to be supplied to a laser diode of a pumping unit such that the laser output of the fiber laser beam equals a set value.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: October 14, 2008
    Assignee: Miyachi Technos Corporation
    Inventors: Yasushi Matsuda, Hidenori Shimada, Kouichi Yaginuma, Shingo Tanaka
  • Fiber laser beam processing apparatus
    Publication number: 20070164004
    Abstract: A fiber laser beam processing apparatus is configured by a fiber laser oscillator, a laser power source unit, a laser beam injecting unit, a fiber transmission system, a laser beam irradiating unit, a processing table, etc. A portion of a fiber laser beam oscillated and outputted by the fiber laser oscillator is received by a photo diode for monitoring the power through a beam splitter. An output signal of the photo diode is sent to a laser power source unit. The power source unit receives the output signal of the photo diode as a feedback signal and controls a driving current or an excitation current to be supplied to a laser diode of a pumping unit such that the laser output of the fiber laser beam equals a set value.
    Type: Application
    Filed: January 17, 2007
    Publication date: July 19, 2007
    Inventors: Yasushi Matsuda, Hidenori Shimada, Kouichi Yaginuma, Shingo Tanaka