ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,719,237, issued on Aug. 25, was assigned to HAMAMATSU PHOTONICS K.K. (Hamamatsu, Japan).
"Optical semiconductor device, optical unit, and method for manufacturing optical unit" was invented by Akira Higuchi (Hamamatsu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical semiconductor device includes: a semiconductor substrate including a first main surface and a second main surface; a stacked body that is formed on the first main surface and includes an active layer and a contact layer arranged on a side opposite to the semiconductor substrate with respect to the active layer; a first electrode in contact with the contact layer; and a second...