ALEXANDRIA, Va., March 24 -- United States Patent no. 12,588,328, issued on March 24, was assigned to Ushio Denki K.K. (Tokyo).
"Infrared LED element" was invented by Kazuyuki Iizuka (Tokyo) and Toru Sugiyama (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are an infrared LED element with an emission wavelength of 1000 nm or more, which has improved emission efficiency by enhancing uniformity of light emission in a surface direction.The infrared LED element includes: a support substrate; a reflection layer formed on top of the support substrate; an insulating layer formed on top of the reflection layer; a contact layer formed on top of the insulating layer, the contact layer being made of GaxI...