ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,547,771, issued on Feb. 10, was assigned to NTT DOCOMO Inc. (Chiyoda-ku, Japan).
"Privacy protection data association system" was invented by Kazuma Nozawa (Chiyoda-ku, Japan), Tomohiro Nakagawa (Chiyoda-ku, Japan), Kazuya Sasaki (Chiyoda-ku, Japan) and Masayuki Terada (Chiyoda-ku, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a privacy protection data association system including devices (10A, 10B) which maintain user data including a user ID and personal information, each device includes: a de-identification processing unit (11) which performs an irreversible conversion process on the user ID and a privacy protection process on the personal ...