ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,286, issued on Sept. 23, was assigned to KIOXIA Corp. (Tokyo).

"Memory system" was invented by Masanobu Shirakawa (Chigasaki, Japan), Tsukasa Tokutomi (Kamakura, Japan) and Marie Takada (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to one embodiment, a memory system includes a semiconductor memory device and a controller. The device includes a plurality of memory cells capable of storing at least first to third data and a word line coupled to the plurality of memory cells. The first data is determined by a first read operation including a first read level. The second data is determined by a second read operation includin...