US Patent Issued to Sumitomo Osaka Cement on July 1 for "Optical device and optical transmission apparatus using same" (Japanese Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,933, issued on July 1, was assigned to Sumitomo Osaka Cement Co. Ltd. (Tokyo).

"Optical device and optical transmission apparatus using same" was invented by Kei Kato (Tokyo) and Hideki Ichimei (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes a housing that accommodates at least an optical waveguide element, a main body portion 1 of the housing having an opening portion OP on one surface and a lead pin PN1 fixed to a side surface adjacent to the one surface, and including a metal member 2 disposed to surround the opening portion OP and a lid member 11 that closes the opening portion OP and is joined to the metal member...