Patents by Inventor Junichi Kigoshi

Junichi Kigoshi 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).

  • Interactive floor planner apparatus for circuit blocks
    Patent number: 6789243
    Abstract: The present invention relates to an interactive floor planner apparatus for determining a placement position of functional blocks, in which apparatus functional block information including information on pins and connection information on pin connection between the functional blocks are defined, the apparatus comprising: a functional block shape extracting unit for dividing each of the functional blocks into one or a plurality of divided pieces on the basis of shape of the functional block obtained from the functional block information; an inter-functional block connection calculating unit for calculating a number of connections between pins belonging to divided pieces of two functional blocks connected to each other, between the divided pieces, as a number of connections between the divided pieces on the basis of the connection information; and a ratsnest display unit for displaying the connections between the divided pieces as a combined single line having a line width corresponding to the number of connect
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: September 7, 2004
    Assignee: Fujitsu Limited
    Inventors: Manabu Nakagawa, Junichi Kigoshi, Yukihiko Onishi
  • Interactive floor planner apparatus
    Publication number: 20030226129
    Abstract: The present invention relates to an interactive floor planner apparatus for determining a placement position of functional blocks, in which apparatus functional block information including information on pins and connection information on pin connection between the functional blocks are defined, the apparatus comprising: a functional block shape extracting unit for dividing each of the functional blocks into one or a plurality of divided pieces on the basis of shape of the functional block obtained from the functional block information; an inter-functional block connection calculating unit for calculating a number of connections between pins belonging to divided pieces of two functional blocks connected to each other, between the divided pieces, as a number of connections between the divided pieces on the basis of the connection information; and a ratsnest display unit for displaying the connections between the divided pieces as a combined single line having a line width corresponding to the number of connect
    Type: Application
    Filed: December 2, 2002
    Publication date: December 4, 2003
    Inventors: Manabu Nakagawa, Junichi Kigoshi, Yukihiko Onishi
  • Interactive designing process and system of a printed circuit board pattern
    Patent number: 6584608
    Abstract: A computer-aided designing of a wiring pattern of a printed circuit board includes the steps of acquiring an electrical property of a component pin of a component to be connected to a wiring pattern by referring to a database, and defining a wiring-length limit for the wiring pattern in conformity with the electrical property of the component pin.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: June 24, 2003
    Assignee: Fujitsu Limited
    Inventors: Touru Kumada, Takao Yamaguchi, Junichi Kigoshi, Kazunori Kumagai