ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,535, issued on May 26, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Optical transmission module" was invented by Kazuki Yamaji (Tokyo) and Norio Okada (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "This optical transmission module includes: a plurality of semiconductor lasers provided on a sub-mount fixed to a side surface of a block fixed on a plate-shaped stem made of metal; and a cap with a lens fixed thereto, the cap covering all members placed above the stem. The same number of lead pins as the semiconductor lasers are provided so as to respectively penetrate through a plurality of holes formed in the stem. The lead pins and the se...