US Patent Issued to Fujitsu on June 17 for "Optical wavelength multiplexing transmission device and optical wavelength multiplexing transmission method" (Japanese Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,979, issued on June 17, was assigned to Fujitsu Ltd. (Kawasaki, Japan).

"Optical wavelength multiplexing transmission device and optical wavelength multiplexing transmission method" was invented by Shigeru Ishii (Ota, Japan), Tatsuya Tsuzuki (Kawasaki, Japan), Takehiro Fujita (Setagaya, Japan) and Tomoaki Takeyama (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical wavelength multiplexing transmission device includes: a demultiplexer configured to demultiplex a wavelength multiplexing signal for each wavelength band from a multiplexed signal that includes wavelength multiplexing signals in a plurality of the wavelength bands; ...