INTERNATIONAL PATENT: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, 日本電信電話株式会社 FILES APPLICATION FOR "WAVELENGTH CROSS-CONNECT DEVICE, ADD-DROP DEVICE, CONTROL DEVICE AND OPTICAL TRANSMISSION METHOD"

GENEVA, June 10 -- NIPPON TELEGRAPH AND TELEPHONE CORPORATION (5-1, Otemachi 1-chome, Chiyoda-ku, Tokyo1008116), 日本電信電話株式会社 (東京都千代田区大手町一丁目５番１号) filed a patent application (PCT/JP2023/042795) for "WAVELENGTH CROSS-CONNECT DEVICE, ADD-DROP DEVICE, CONTROL DEVICE, AND OPTICAL TRANSMISSION METHOD" on Nov 29, 2023. With publication no. WO/2025/115141, the details related to the patent application was published on Jun 05, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the Worl...