US Patent Issued to TOYOTA JIDOSHA, SCALAR on March 18 for "Data management apparatus and data management method" (Japanese Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,031, issued on March 18, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan) and SCALAR INC. (Tokyo).

"Data management apparatus and data management method" was invented by Naoki Yamamuro (Nagoya, Japan) and Wataru Fukatsu (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "When a controller of a client server updates component data D12 to component data D13, the controller creates in a distributed ledger which is a first proof chain, a record (Age [3]) including a hash value of the component data D13. Then, the controller generates a terminal hash value which is a hash value of a terminal record (Age [3]) in the first proof chain. The controller...