ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,947, issued on April 22, was assigned to Rohm Co. Ltd. (Kyoto, Japan).

"Switching device, electronic appliance, and vehicle" was invented by Katsuaki Yamada (Kyoto, Japan), Shuntaro Takahashi (Kyoto, Japan) and Muga Imamura (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A switching device includes: an N-type semiconductor substrate; a power MISFET having the N-type semiconductor substrate as its drain; an input electrode receiving an input signal; a control circuit generating a gate control signal for the power MISFET according to the input signal; and a negative current prevention circuit provided between the input electrode and the co...