Patents by Inventor Isao KONUMA

Isao KONUMA 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).

  • Storage device and memory system
    Patent number: 10331552
    Abstract: According to one embodiment, a storage device includes a storage portion storing a first entry, the first entry includes a first translation table corresponding between a first logical address and a first physical address on a nonvolatile memory, and a first state showing that data at the first physical address is a valid as data at the first logical address, and a controller adding a second entry in the storage portion and changing the first state to a second state when receiving a command from a host, the second entry includes a second translation table corresponding between a second logical address and the first physical address, and a third state showing that the first physical address of the second translation table is referring to the first physical address of the first translation table, the second state showing that the first physical address of the first translation table is shared with the first physical address of the second translation table.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: June 25, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Isao Konuma, Norikazu Yoshida
  • STORAGE DEVICE AND MEMORY SYSTEM
    Publication number: 20160267012
    Abstract: According to one embodiment, a storage device includes a storage portion storing a first entry, the first entry includes a first translation table corresponding between a first logical address and a first physical address on a nonvolatile memory, and a first state showing that data at the first physical address is a valid as data at the first logical address, and a controller adding a second entry in the storage portion and changing the first state to a second state when receiving a command from a host, the second entry includes a second translation table corresponding between a second logical address and the first physical address, and a third state showing that the first physical address of the second translation table is referring to the first physical address of the first translation table, the second state showing that the first physical address of the first translation table is shared with the first physical address of the second translation table.
    Type: Application
    Filed: August 24, 2015
    Publication date: September 15, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Isao KONUMA, Norikazu Yoshida