ALEXANDRIA, Va., June 12 -- United States Patent no. 12,302,600, issued on May 13, was assigned to SEIKO EPSON Corp. (Tokyo).

"Semiconductor device having semiconductor column portions" was invented by Hiroyuki Shimada (Chuo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device includes a plurality of column portions made of a semiconductor. The plurality of column portions each include a source region, a drain region, and a channel formation region including a channel formed between the source region and the drain region. The semiconductor device further includes: a gate electrode provided at a side wall of the channel formation region with an insulating layer being interposed between...