ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,686, issued on Nov. 4, was assigned to Kioxia Corp. (Tokyo).

"Memory system" was invented by Tasuku Kobayashi (Yokohama Kanagawa, Japan), Daisuke Uchida (Fujisawa Kanagawa, Japan) and Michita Fujii (Yokohama Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A memory system includes a nonvolatile memory that stores table data and a memory controller for writing and reading data to and from the nonvolatile memory. The memory controller includes a volatile memory that can be in either a retention state during which power is supplied thereto or a power down state during which the power supplied thereto is cut off, a timer that measures elaps...