Patents by Inventor Tatsuya Fuchigami

Tatsuya Fuchigami 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).

  • Information management system and method for the same
    Patent number: 11856085
    Abstract: An information using device 300 adds an encryption public key held to a blockchain, an information holding device 200 transmits encrypted information as a result of acquiring the encryption public key from the blockchain 400 and encrypting the target information, the information management device 100 stores the encrypted information received, and transmits a storage destination address, the information holding device 100 adds the storage destination address of the encrypted information received to the blockchain 400, the information using device 300 acquires the storage destination address of the encrypted information, and accesses the storage address, the information management device 100 transmits the encrypted information at the storage destination address, in response to the access from the information using device 300, and the information using device 300 decrypts the encrypted information received, using an encryption secret key held.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: December 26, 2023
    Assignee: NOMURA RESEARCH INSTITUTE, LTD.
    Inventors: Tatsuya Tojima, Takeshi Kondo, Yoshihito Aso, Tatsuya Fuchigami
  • INFORMATION MANAGEMENT SYSTEM AND METHOD FOR THE SAME
    Publication number: 20200304291
    Abstract: An information using device 300 adds an encryption public key held to a blockchain, an information holding device 200 transmits encrypted information as a result of acquiring the encryption public key from the blockchain 400 and encrypting the target information, the information management device 100 stores the encrypted information received, and transmits a storage destination address, the information holding device 100 adds the storage destination address of the encrypted information received to the blockchain 400, the information using device 300 acquires the storage destination address of the encrypted information, and accesses the storage address, the information management device 100 transmits the encrypted information at the storage destination address, in response to the access from the information using device 300, and the information using device 300 decrypts the encrypted information received, using an encryption secret key held.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 24, 2020
    Inventors: Tatsuya Tojima, Takeshi Kondo, Yoshihito Aso, Tatsuya Fuchigami