Patents by Inventor Norishige Iwamoto

Norishige Iwamoto 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).

  • Control method in which frequency of data erasures is limited
    Patent number: 5819307
    Abstract: A memory control method includes a first step of managing control information in each of memory blocks constituting the memory, the control information joining the memory blocks in a chain according to the frequency of data erasures occurring in each of the memory blocks; and a second step of determining, on the basis of the control information, a memory block that should be a transfer destination of write data.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: October 6, 1998
    Assignee: Fujitsu Limited
    Inventors: Norishige Iwamoto, Hideomi Watanabe, Ken Ryu, Yasumori Hibi