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:
Oct. 22, 2024
Filed:
Oct. 30, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Hiroki Watanabe, Musashino, JP;
Tatsuro Ishida, Musashino, JP;
Shigenori Ohashi, Musashino, JP;
Shigeru Fujimura, Musashino, JP;
Atsushi Nakadaira, Musashino, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A history of data can be easily traced on a blockchain. A blockchain system includes a user terminaland an approval terminal. The user terminalincludes a transaction issuing unitthat issues a transaction for updating a value of a variable of a smart contract. The approval terminalincludes a block generation unitthat generates a block including the transaction and updates the value of the variable, and reflects the block and an update block number of the block in which the value of the variable is updated to a distributed ledgerof a terminal of the blockchain system.