Patents by Inventor Mika FUJISHIRO

Mika FUJISHIRO 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).

  • System, server device, and storage device
    Patent number: 11856112
    Abstract: According to one embodiment, a server device includes a memory and a processor. The memory stores verification information. The processor accepts a request to transmit a certificate number, generates information in which identification information of one of storage devices from which data is to be erased, a public key, a secret key, and the certificate number are associated with one another, transmits the certificate number, performs verification using an authenticator transmitted by the one storage device and verification information, generates, based on a result of the verification, an erasure certificate that includes the identification information and the certificate number and is signed using the secret key, and transmits the erasure certificate.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: December 26, 2023
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Mika Fujishiro, Yasuto Aramaki, Tatsuaki Iwata, Hiromi Sakata, Taichiro Yamanaka, Daisuke Mito
  • SYSTEM, SERVER DEVICE, AND STORAGE DEVICE
    Publication number: 20220094557
    Abstract: According to one embodiment, a server device includes a memory and a processor. The memory stores verification information. The processor accepts a request to transmit a certificate number, generates information in which identification information of one of storage devices from which data is to be erased, a public key, a secret key, and the certificate number are associated with one another, transmits the certificate number, performs verification using an authenticator transmitted by the one storage device and verification information, generates, based on a result of the verification, an erasure certificate that includes the identification information and the certificate number and is signed using the secret key, and transmits the erasure certificate.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 24, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Mika FUJISHIRO, Yasuto ARAMAKI, Tatsuaki IWATA, Hiromi SAKATA, Taichiro YAMANAKA, Daisuke MITO