Patents by Inventor Masataka Kushigemachi

Masataka Kushigemachi 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).

  • Integrated circuit board with JTAG functions
    Patent number: 7979762
    Abstract: In an integrated circuit board, a plurality of integrated circuits to be checked are connected together in a star shape. Operation clock data for JTAG of each integrated circuit and check data for checking each integrated circuit are stored. When an integrated circuit to be checked is specified, operation clock data for JTAG and check data for the specified integrated circuit are determined. With an operation clock for JTAG according to the determined operation clock data for JTAG, the determined check data is input to the specified integrated circuit. Based on the check data and output data output from the integrated circuit to which this check data is input, the integrated circuit board determines a malfunction in the integrated circuit, and then stores the determination result in a storage device.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: July 12, 2011
    Assignee: Fujitsu Limited
    Inventors: Satoshi Esaka, Masayuki Furuta, Masataka Kushigemachi
  • Integrated circuit board with JTAG functions
    Publication number: 20090307547
    Abstract: In an integrated circuit board, a plurality of integrated circuits to be checked are connected together in a star shape. Operation clock data for JTAG of each integrated circuit and check data for checking each integrated circuit are stored. When an integrated circuit to be checked is specified, operation clock data for JTAG and check data for the specified integrated circuit are determined. With an operation clock for JTAG according to the determined operation clock data for JTAG, the determined check data is input to the specified integrated circuit. Based on the check data and output data output from the integrated circuit to which this check data is input, the integrated circuit board determines a malfunction in the integrated circuit, and then stores the determination result in a storage device.
    Type: Application
    Filed: February 5, 2009
    Publication date: December 10, 2009
    Applicant: Fujitsu Limited
    Inventors: Satoshi Esaka, Masayuki Furuta, Masataka Kushigemachi
  • Storage device
    Publication number: 20050138303
    Abstract: A storage device that is detachably attachable to an information processing apparatus, comprises an IC chip; a first control unit extracting a control command for the IC chip included in a control command for the storage device from the information processing apparatus; and a second control unit performing interface conversion corresponding to the IC chip on the control command for the IC chip extracted by the first control unit and giving the converted control command to the IC chip.
    Type: Application
    Filed: May 19, 2004
    Publication date: June 23, 2005
    Inventors: Hideki Nagino, Tadashige Iwao, Masataka Kushigemachi, Hideo Senkoushi, Kazuaki Sumi, Takayuki Okamasu