ALEXANDRIA, Va., March 5 -- United States Patent no. RE50,330, issued on March 4, was assigned to Kioxia Corp. (Tokyo).

"Nonvolatile semiconductor memory device and method for driving same" was invented by Ryota Katsumata (Mie, Japan), Hideaki Aochi (Kanagawa, Japan), Hiroyasu Tanaka (Mie, Japan), Masaru Kito (Kanagawa, Japan), Yoshiaki Fukuzumi (Kanagawa, Japan), Masaru Kidoh (Mie, Japan), Yosuke Komori (Mie, Japan), Megumi Ishiduki (Mie, Japan), Junya Matsunami (Kanagawa, Japan), Tomoko Fujiwara (Kanagawa, Japan), Ryouhei Kirisawa (Kanagawa, Japan), Yoshimasa Mikajiri (Mie, Japan) and Shigeto Oota (Mie, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to one embodiment, a nonvolatile semicond...