ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,775, issued on Dec. 30, was assigned to LumentumRadiant GmbH (Baar, Switzerland).
"Semiconductor optical device" was invented by Ryu Washino (Yokohama, Japan), Yoshihiro Nakai (Yokohama, Japan), Yuma Endo (Sagamihara, Japan) and Saori Hizume (Sagamihara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor optical device includes: a buried layer having a side surface, an upper surface, and an intermediate region; an insulating film on the upper surface of the buried layer; and an electrode including a mesa electrode, a pad electrode, and a lead-out electrode. The upper surface of the buried layer has an outer edge including a first e...