GENEVA, Dec. 29 -- NTT, INC. (5-1, Otemachi 1-chome, Chiyoda-ku, Tokyo1008116), NTT株式会社 (東京都千代田区大手町一丁目5番1号) filed a patent application (PCT/JP2024/022116) for "ELECTRONIC SIGNATURE SYSTEM AND ELECTRONIC SIGNATURE METHOD" on Jun 18, 2024. With publication no. WO/2025/262821, the details related to the patent application was published on Dec 26, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).

Inventor(s): YAMAMURA, Kazuki (c/o NTT Intellectu...