The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 2023
Filed:
Mar. 16, 2020
Nomura Research Institute, Ltd., Tokyo, JP;
Tatsuya Tojima, Tokyo, JP;
Takeshi Kondo, Tokyo, JP;
Yoshihito Aso, Tokyo, JP;
Tatsuya Fuchigami, Tokyo, JP;
NOMURA RESEARCH INSTITUTE, LTD., Tokyo, JP;
Abstract
An information using deviceadds an encryption public key held to a blockchain, an information holding devicetransmits encrypted information as a result of acquiring the encryption public key from the blockchainand encrypting the target information, the information management devicestores the encrypted information received, and transmits a storage destination address, the information holding deviceadds the storage destination address of the encrypted information received to the blockchain, the information using deviceacquires the storage destination address of the encrypted information, and accesses the storage address, the information management devicetransmits the encrypted information at the storage destination address, in response to the access from the information using device, and the information using devicedecrypts the encrypted information received, using an encryption secret key held.