ALEXANDRIA, Va., April 15 -- United States Patent no. 12,602,480, issued on April 14, was assigned to TOYOTA JIDOSHA K.K. (Aichi-ken, Japan) and SCALAR INC. (Tokyo).
"Data management apparatus and data management method" was invented by Kazuya Kumazawa (Nagoya, Japan), Naoki Yamamuro (Nagoya, Japan), Yohei Nakanishi (Nagoya, Japan), Shigeki Matsumoto (Nagoya, Japan), Takaya Uchino (Nisshin, Japan) and Wataru Fukatsu (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A client server includes: a storage that stores a distributed ledger; and a processor that performs a plurality of verification processes for one or more files and one or more confirmation times. In the distributed ledger, one or more file has...