GENEVA, Dec. 1 -- 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/JP2024/019125) for "OPTICAL WAVEGUIDE CIRCUIT" on May 23, 2024. With publication no. WO/2025/243488, the details related to the patent application was published on Nov 27, 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): MORIMOTO Yoshie (c/o NTT Intellectual Property Center, 9-11, Midori-cho...