ALEXANDRIA, Va., June 16 -- United States Patent no. 12,310,167, issued on May 20, was assigned to Sharp K.K. (Sakai, Japan).
"Light-emitting element" was invented by Kenji Kimoto (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting element includes: a first electrode which is an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a second electrode which is a cathode in this order; and an oxide layer which is a first oxide layer and an oxide layer which is a second oxide layer disposed in this order from the first electrode side between the hole transport layer and the light-emitting layer or between the light-emitting layer and the electron trans...