Patents by Inventor Yudai Hata

Yudai Hata 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 beam spot shape detection method
    Patent number: 9789567
    Abstract: Disclosed herein is a laser beam spot shape detection method for detecting a spot shape of a laser beam oscillated by laser beam oscillator and collected by a condenser in a laser machining apparatus, the laser beam spot shape detection method including: a concave mirror holding step of holding a concave mirror having a spherical face forming a reflecting face with a chuck table; a focal point positioning step of positioning the focal point of the condenser in a proximity including the center of the spherical face forming the reflecting face of the concave mirror held by the chuck table; a laser beam irradiation step of irradiating a laser beam onto the held concave mirror, and an imaging step of capturing images of reflected light with a camera.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: October 17, 2017
    Assignee: Disco Corporation
    Inventors: Kenji Asano, Keiji Nomaru, Joel Koerwer, Naotoshi Kirihara, Yudai Hata, Yusaku Ito
  • LASER BEAM SPOT SHAPE DETECTION METHOD
    Publication number: 20160045980
    Abstract: Disclosed herein is a laser beam spot shape detection method for detecting a spot shape of a laser beam oscillated by laser beam oscillator and collected by a condenser in a laser machining apparatus, the laser beam spot shape detection method including: a concave mirror holding step of holding a concave mirror having a spherical face forming a reflecting face with a chuck table; a focal point positioning step of positioning the focal point of the condenser in a proximity including the center of the spherical face forming the reflecting face of the concave mirror held by the chuck table; a laser beam irradiation step of irradiating a laser beam onto the held concave mirror, and an imaging step of capturing images of reflected light with a camera.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 18, 2016
    Inventors: Kenji Asano, Keiji Nomaru, Joel Koerwer, Naotoshi Kirihara, Yudai Hata, Yusaku Ito