ALEXANDRIA, Va., July 23 -- United States Patent no. 12,369,324, issued on July 22, was assigned to SAMSUNG ELECTRONICS Co. Ltd. (South Korea).

"Three-dimensional semiconductor memory device and electronic system including the same" was invented by Seung Yoon Kim (Seoul, South Korea), Kanamori Kohji (Seongnam-si, South Korea) and Jeehoon Han (Hwaseong-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A three-dimensional semiconductor memory device includes a substrate, and a stack structure on the substrate. The stack structure includes first blocks that extend in a first direction and are arranged in a second direction intersecting the first direction, and a second block that is between the fir...