US Patent Issued to HITACHI on Feb. 24 for "Data circulation control method, data circulation control system, and approval server" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,563,040, issued on Feb. 24, was assigned to HITACHI LTD. (Tokyo).

"Data circulation control method, data circulation control system, and approval server" was invented by Tadashi Kaji (Tokyo), Hiromitsu Kato (Tokyo), Masayuki Yoshino (Tokyo), Hiroki Uchiyama (Tokyo) and Tomohiro Shigemoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a data circulation control method, an approval server including a processor and a memory controls access to data between a provision party computer providing the data and a use party computer using data. The method includes: a purpose accomplishment status notifying step in which the use party computer notifies th...