US Patent Issued to HAMAMATSU PHOTONICS on Aug. 25 for "Optical semiconductor element" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,720,920, issued on Aug. 25, was assigned to HAMAMATSU PHOTONICS K.K. (Hamamatsu, Japan).

"Optical semiconductor element" was invented by Takahide Yanai (Hamamatsu, Japan) and Daisuke Iida (Hamamatsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical semiconductor element includes: a substrate; a semiconductor stacked body including an optical layer, a first semiconductor layer, and a second semiconductor layer, the optical layer and the first semiconductor layer forming a mesa portion and the second semiconductor layer including an outer portion; a first electrode formed on the mesa portion and connected to the first semiconductor layer; a...