Patents by Inventor Tomoaki Kojo

Tomoaki Kojo 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).

  • Method for controlling semiconductor memory device
    Patent number: 7904674
    Abstract: A semiconductor memory device includes a plurality of independently accessible memory cores. Each memory core includes at least one flag cell storing a flag value and a plurality of data cells storing data. An access control circuit included in the semiconductor memory device selects an access-control subject memory core from the memory cores based on the flag value of the at least one flag cell of each memory core.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: March 8, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Tomoaki Kojo, Masahiro Tanaka
  • Method for controlling semiconductor memory device
    Publication number: 20080114949
    Abstract: A semiconductor memory device that reduces circuit size. The semiconductor memory device includes a plurality of independently accessible memory cores. Each memory core includes at least one flag cell storing a flag value and a plurality of data cells storing data. An access control circuit included in the semiconductor memory device selects an access-control subject memory core from the memory cores based on the flag value of the at least one flag cell of each memory core.
    Type: Application
    Filed: November 14, 2007
    Publication date: May 15, 2008
    Inventors: Tomoaki Kojo, Masahiro Tanaka