Patents by Inventor Hiroki Korenaga

Hiroki Korenaga 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).

  • Semiconductor integrated circuit device having an improved arrangement of power source lines
    Patent number: 5008728
    Abstract: A semiconductor integrated circuit device includes a plurality of functional blocks each executing respective logic operations and arranged in an internal area on a semiconductor chip, and a first power source line arranged so as to surround the internal area. The first power source line is a closed-loop line. Second power source lines are provided for the respective functional blocks so as to surround the respective functional blocks on the chip. Each of the second power source lines is a closed-loop line. Third power source lines mutually connect the second power source lines for the functional blocks and connect the second power source lines and the first power source line.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: April 16, 1991
    Assignee: Fujitsu Limited
    Inventors: Takeshi Yamamura, Seiji Endo, Kazuyuki Kawauchi, Hiroki Korenaga