ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,401,138, issued on Aug. 26, was assigned to Sumitomo Electric Device Innovations Inc. (Yokohama, Japan).
"Semiconductor device" was invented by Ikuo Nakashima (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device includes a base, a matching circuit including a substrate, a ground layer, and a signal line, wherein a width of the signal line on a first end side of the substrate is smaller than a width of the substrate and larger than that of the signal line on a second end side, and a distance between the ground layer and the signal line on the first end side is larger than a distance therebetween on the second end side, a...