Patents by Inventor Hirokazu Kidou

Hirokazu Kidou 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: 5702496
    Abstract: A shaped glass sheet having a sharp bend is provided, wherein a radius of curvature of an outer circumference of the bend transverse to the bend is at most 4 times a thickness of the glass sheet and the straight sections of the shaped glass sheet are substantially flat. A process for the preparation of the shaped glass sheet comprises applying an electrically conductive material on a surface of a glass sheet to form a bend line, generating a graded temperature profile transverse the bend line, and then applying an electrical potential to the bend line. In another process, a width or thickness of a bend line is not uniform or a bend line is discontinuous in the longitudinal direction of the bend line, no particular temperature profile is required and, upon applying an electrical potential, arc discharge occurs along the bend line to melt the glass rapidly.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: December 30, 1997
    Assignee: Suntec Corporation
    Inventors: Shotaro Tomozane, Hirokazu Kidou, Yukikazu Nakabayashi
  • Patent number: 5589248
    Abstract: A shaped glass sheet having a sharp bend is provided, wherein a radius of curvature of an outer circumference of the bend transverse to the bend is at most 4 times a thickness of the glass sheet and the straight sections of the shaped glass sheet are substantially flat. A process for the preparation of the shaped glass sheet comprises applying an electrically conductive material on a surface of a glass sheet to form a bend line, generating a graded temperature profile transverse the bend line, and then applying an electrical potential to the bend line. In another process, a width or thickness of a bend line is not uniform or a bend line is discontinuous in the longitudinal direction of the bend line, no particular temperature profile is required and, upon applying an electrical potential, arc discharge occurs along the bend line to melt the glass rapidly.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: December 31, 1996
    Assignee: Suntec Corporation
    Inventors: Shotaro Tomozane, Hirokazu Kidou, Yukikazu Nakabayashi
  • Patent number: 4793695
    Abstract: An electrochromic display device which comprises a display electrode comprising a transparent substrate, a transparent electrode formed on an inner surface of the transparent substrate and an electrochromic material layer for display made of tungstgen oxide and formed on the transparent electrode; a counter electrode comprising a substrate, a conductive layer formed on an inner surface of the substrate and an activated carbon fiber cloth bonded to the conductive layer with a conductive adhesive; and a spacer provided beween the display electrode and the counter electrode with their inner surfaces facing to each other to define, between them, an electrolyte chamber, which is filled with an electrolyte comprising LiClO.sub.4 dissolved in propylene carbonate containing water and an acid, which device has an increased original injected charge and good maintenance of the injected charge after prolonged storage.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: December 27, 1988
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Shuichi Wada, Tsunemi Ohiwa, Hirokazu Kidou, Akira Kawakami, Toshikatsu Manabe