ALEXANDRIA, Va., June 17 -- United States Patent no. 12,317,479, issued on May 27, was assigned to UNISANTIS ELECTRONICS SINGAPORE PTE. LTD. (Singapore).

"Memory apparatus using semiconductor devices" was invented by Koji Sakui (Tokyo) and Nozomu Harada (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A memory apparatus includes a page including a plurality of memory cells arranged in a column on a substrate. Each of voltages applied to first and second gate conductor layers and first and second impurity layers in each memory cell included in the page is controlled to perform a page write operation of retaining holes, which have been formed through an impact ionization phenomenon or using a gate induced...