ALEXANDRIA, Va., June 5 -- United States Patent no. 12,279,412, issued on April 15, was assigned to UNISANTIS ELECTRONICS SINGAPORE PTE. LTD. (Singapore).

"Semiconductor element memory device" was invented by Koji Sakui (Tokyo) and Nozomu Harada (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "On a substrate Sub, a semiconductor base material (Si pillar) that stands on the substrate in a vertical direction or that extends along the substrate in a horizontal direction a first impurity layer and a second impurity layer that are disposed on respective ends of the semiconductor base material, a first gate conductor layer, and a second gate conductor layer that surround the semiconductor base material betwee...