ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,557,337, issued on Feb. 17, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Semiconductor device and display device including the same" was invented by Seiichi Yoneda (Atsugi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A first transistor and a second transistor are stacked. The first transistor and the second transistor have a gate electrode in common. At least one of semiconductor films used in the first transistor and the second transistor is an oxide semiconductor film. With the use of the oxide semiconductor film as the semiconductor film in the transistor, high field-effect mobility and high-speed operation can ...