US Patent Issued to NTT DOCOMO on Nov. 3 for "Privacy-protected data aggregation device and privacy-protected data aggregation system" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,783,726, issued on Nov. 3, was assigned to NTT DOCOMO Inc. (Tokyo).

"Privacy-protected data aggregation device and privacy-protected data aggregation system" was invented by Kazuma Nozawa (Chiyoda-ku, Japan), Keita Hasegawa (Chiyoda-ku, Japan), Tomohiro Nakagawa (Chiyoda-ku, Japan), Hiroshi Aono (Chiyoda-ku, Japan) and Masayuki Terada (Chiyoda-ku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A privacy-protected data aggregation device (10) includes: an attribute information encryption unit (13) that encrypts attribute information in user data to be aggregated, which includes a plurality of pieces of attribute information, using a homomorphic encr...