ALEXANDRIA, Va., June 19 -- United States Patent no. 12,336,291, issued on June 17, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Semiconductor device" was invented by Takahiko Ishizu (Kanagawa, Japan) and Seiichi Yoneda (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device capable of stable operation with low power consumption is provided. A logic circuit having a circuit configuration using a transistor including an oxide semiconductor in a channel formation region is included. The logic circuit is a two-input/two-output two-wire logic circuit. Transistors included in the logic circuit each include a gate and a back gate. An input terminal is el...