US Patent Issued to TOYOTA JIDOSHA, SCALAR on Oct. 14 for "Data management device, data management method, and non-transitory storage medium" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,291, issued on Oct. 14, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan) and SCALAR INC. (Shinjuku-ku, Japan).

"Data management device, data management method, and non-transitory storage medium" was invented by Naoki Yamamuro (Nagoya, Japan), Shigeki Matsumoto (Nagoya, Japan), Yohei Nakanishi (Nagoya, Japan), Kazuya Kumazawa (Nagoya, Japan) and Wataru Fukatsu (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device includes: a storage storing a distributed ledger, the distributed ledger including a plurality of evidence chains and a time stamp chain, the plurality of evidence chains storing in chronological order at least one hash value, th...