Patents by Inventor Tomomi Ohnuma

Tomomi Ohnuma 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).

  • Portable electronic device, smartcard and control method for portable electronic device
    Patent number: 8645624
    Abstract: A smartcard includes a write unit that writes data to be written to a data memory according to a write command supplied from an external device, a determining unit that determines whether important data is contained in the data to be written specified by the write command supplied from the external device, a calculating unit that calculates a head address of the important data in the data memory based on data length from a head of the data to be written to a head of the important data and an address on the data memory at which a process of writing the data to be written is started when the determining unit determines that important data is contained in the data to be written, and a position table that stores information indicating a head address of the important data in correspondence to information indicating the important data.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: February 4, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tomomi Ohnuma
  • PORTABLE ELECTRONIC DEVICE, SMARTCARD AND CONTROL METHOD FOR PORTABLE ELECTRONIC DEVICE
    Publication number: 20110016274
    Abstract: A smartcard includes a write unit that writes data to be written to a data memory according to a write command supplied from an external device, a determining unit that determines whether important data is contained in the data to be written specified by the write command supplied from the external device, a calculating unit that calculates a head address of the important data in the data memory based on data length from a head of the data to be written to a head of the important data and an address on the data memory at which a process of writing the data to be written is started when the determining unit determines that important data is contained in the data to be written, and a position table that stores information indicating a head address of the important data in correspondence to information indicating the important data.
    Type: Application
    Filed: February 25, 2010
    Publication date: January 20, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Tomomi Ohnuma