ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,976, issued on Feb. 17, was assigned to NICHIA Corp. (Anan, Japan).
"Laser diode element and method for manufacturing same" was invented by Naoki Azuma (Tokushima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a laser diode element includes preparing a stacked body including a nitride semiconductor substrate, a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer. Element regions are defined by planned cleavage lines and planned division lines. The stacked body defines protrusions each including first and second side surfaces, and a ridge. Lower ends of the...