Patents by Inventor Kei Date

Kei Date 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).

  • NON-VOLATILE MEMORY WITH SMART ERASE VERIFY
    Publication number: 20190267106
    Abstract: In order to have different subsets of memory cells of a non-volatile memory system erase at the same speed, it is proposed to perform erasing by separately controlling the speed of erase for the different subsets in response to observing speed information for the subsets during the erasing.
    Type: Application
    Filed: February 28, 2018
    Publication date: August 29, 2019
    Applicant: SANDISK TECHNOLOGIES LLC
    Inventors: Kei Date, Hideto Tomiie
  • Non-volatile memory with smart erase verify
    Patent number: 10381095
    Abstract: In order to have different subsets of memory cells of a non-volatile memory system erase at the same speed, it is proposed to perform erasing by separately controlling the speed of erase for the different subsets in response to observing speed information for the subsets during the erasing.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: August 13, 2019
    Assignee: SanDisk Technologies LLC
    Inventors: Kei Date, Hideto Tomiie