Patents by Inventor Katsuhiro Kuriyama

Katsuhiro Kuriyama 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).

  • Patent number: 5670068
    Abstract: A laser processing apparatus includes a laser beam source, a focusing optical system for focusing a laser beam from the source as a processing laser beam to a surface of an article, an illuminating optical system using a laser beam of the same frequency as that of the processing laser beam as an illumination laser beam for illuminating the surface of the article, and a photographing device for detecting the illumination laser beam reflected from the article through the focusing optical system to thereby monitor a position to be processed. Since the laser beam of the illuminating optical system is of the same frequency as that of the processing beam chromatic aberration is prevented. This allows increased monitoring accuracy so that an article such as copper foil can be processed by a laser beam with an accuracy of 10 microns to monitor and correct a processing position.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: September 23, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsuhiro Kuriyama, Toshiharu Okada, Yuji Uesugi, Shoro Mochida, Kazuyoshi Yamaguchi
  • Patent number: 5138131
    Abstract: A laser cutting method for a glass material, includes steps of forming a continuous scribing line at least on one side face of the glass material, and projecting a laser beam onto the scribing line. A laser cutting apparatus for effecting the laser cutting method, includes a laser oscillating source for emitting the laser beam, a light condensing device for condensing the laser beam onto a surface of the glass material, a scribing device for forming the scribing line on the surface of the glass material, and a displacing device for displacing the laser beam on the scribing line following movement of the scribing point.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: August 11, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yukio Nishikawa, Yuji Uesugi, Katsuhiro Kuriyama, Tadao Shioyama
  • Patent number: 5113055
    Abstract: A laser beam optical system has a plurality of beam reflectors having respective reflecting faces and spacedly supported for rotation in one direction about a common axis which is either in alignment with or parallel to the path of travel of a laser beam emitted from a single beam oscillator. Each of the reflectors is also supported on a common drive shaft with the respective reflecting face inclined at a predetermined angle relative to the drive shaft so that the laser beam can impinge thereupon at an angle of incidence of Those reflectors on the common drive shaft are so coordinated with each other that the reflectors can selectively deflect the laser beam, emitted from the single beam oscillator, towards corresponding condenser lenses during the rotation of the reflectors together with the drive shaft.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: May 12, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Katsuhiro Kuriyama
  • Patent number: 4999905
    Abstract: A method of making a magnetic recording and/or reproducing head having a head support and a head core. The head core is inserted in a slit defined in the head support and is retained in position on the head support by means of a fixing jig to hold the head core immovable relative to the head support. Thereafter, a glass frit for temporarily fixing the head core relative to the head support is fused by the application of a laser beam to partially connect the head core and the head support together. After the fixing jig has been removed and a glass frit has been mounted on the head support so as to cover the slit above the head core, the assembly is loaded into a heating furnace to fuse the glass frit thereby to permanently interlock the head core and the head support together.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: March 19, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsuhiro Kuriyama, Koji Funami, Yuji Uesugi, Masashi Makino