Patents by Inventor Masaaki NllJIMA

Masaaki NllJIMA 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).

  • MEMORY DEVICE THAT EXECUTES AN ERASE OPERATION FOR A NONVOLATILE MEMORY
    Publication number: 20170278581
    Abstract: According to one embodiment, a memory device includes a controller, and a nonvolatile memory in which an erase operation is controlled by the controller, the nonvolatile memory including blocks, the erase operation executing every block, the nonvolatile memory transferring a first reply showing a completion of the erase operation and a fail bit count showing a number of memory cells in which a data erase is uncompleted after the completion of the erase operation to the controller. The controller selects a target block as a target of the erase operation based on the fail bit count.
    Type: Application
    Filed: September 9, 2016
    Publication date: September 28, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazutaka TAKIZAWA, Chao WANG, Masaaki NllJIMA