Patents by Inventor Mitsumasa Kurihara

Mitsumasa Kurihara 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).

  • One-chip microcomputer and method of refreshing its data
    Patent number: 6415352
    Abstract: Reference nonvolatile memory groups in that data are easily erased during reading operation in comparison with a nonvolatile memory in a memory cell array is provided. Under control of a control circuit, data that is stored in the nonvolatile memory (7) is rewritten into the memory in accordance with the result of referring to the reference nonvolatile memory. Thus, the data characteristic of the memory is improved by rewriting data into the nonvolatile memory before a reading failure occurs.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: July 2, 2002
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takashi Asami, Mitsumasa Kurihara, Makoto Motegi, Katsumi Tatekawa