Patents by Inventor Takeshi Sugii

Takeshi Sugii 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).

  • Keyboard circuit apparatus
    Patent number: 5514842
    Abstract: A keyboard circuit apparatus is constituted such that resistive elements are provided both in a first sheet and a second sheet, an insulating spacer being laid on the first sheet, and the second sheet being laid on the insulating spacer. When a key switch is closed, one of the resistive elements provided on the first sheet and one of the resistive elements provided on the second sheet are electrically connected in series so that a desired value of resistance can be obtained.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: May 7, 1996
    Assignee: Fujitsu Limited
    Inventors: Takeshi Sugii, Yoshiaki Ohashi
  • Thermal recording head and process for manufacturing wiring substrate therefor
    Patent number: 4689638
    Abstract: A thermal recording head comprising an insulating substrate which has thereon a heat generating resistor pattern made of a thin-film resistor, an electrode pattern having a common power supply electrode pattern portion and a common grounded electrode pattern portion, for supplying the power to the resistor pattern, and a controlling electrode pattern portion, and switching elements for controlling the supply of the power to the resistor pattern. The electrode pattern is made of a thick-film copper paste by a printing process. The operation of the switching elements is controlled by the controlling electrode pattern portion.Also disclosed is a process for manufacturing a wiring substrate for a thermal recording head.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: August 25, 1987
    Assignee: Fujitsu Limited
    Inventors: Toshio Matsuzaki, Haruo Sorimachi, Kiyoshi Satoh, Takumi Suzuki, Takeshi Sugii