ALEXANDRIA, Va., April 21 -- United States Patent no. 12,608,149, issued on April 21, was assigned to Kioxia Corp. (Tokyo).

"Memory system" was invented by Tomoyuki Kantani (Yokohama Kanagawa, Japan), Kousuke Fujita (Yokohama Kanagawa, Japan) and Iku Endo (Odawara Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A memory system includes a non-volatile memory and a memory controller. The memory controller is configured to perform a write operation on the non-volatile memory in response to a write command from a host by writing system data in a first mode to a first block of the non-volatile memory, the first mode being a write mode for writing data with a first number of bits per memory cell, wr...