Patents by Inventor Yoshii Akagawa

Yoshii Akagawa 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).

  • Semiconductor memory device
    Patent number: 9170935
    Abstract: A semiconductor memory device includes a memory unit configured in page units, an error correction code (ECC) module for generating error correcting codes, a page information addition module for generating page information, and a controller for controlling the reading and writing of data to the memory unit. The controller is configured to associate error correction code information and page information with each frame unit of data written to the memory unit and to store the associated information with each frame unit. The controller is configured to output data to an external host in sizes less than one page unit, such as one frame unit.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 27, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomoyuki Kantani, Yoshii Akagawa
  • SEMICONDUCTOR MEMORY DEVICE
    Publication number: 20130290610
    Abstract: A semiconductor memory device includes a memory unit configured in page units, an error correction code (ECC) module for generating error correcting codes, a page information addition module for generating page information, and a controller for controlling the reading and writing of data to the memory unit. The controller is configured to associate error correction code information and page information with each frame unit of data written to the memory unit and to store the associated information with each frame unit. The controller is configured to output data to an external host in sizes less than one page unit, such as one frame unit.
    Type: Application
    Filed: February 27, 2013
    Publication date: October 31, 2013
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tomoyuki KANTANI, Yoshii Akagawa