ALEXANDRIA, Va., June 19 -- United States Patent no. 12,333,166, issued on June 17, was assigned to Kioxia Corp. (Tokyo).

"Memory system that controls timing of refresh operation" was invented by Kenji Takahashi (Kawasaki Kanagawa, Japan), Makoto Kuribara (Meguro Tokyo, Japan), Shin Takasaka (Yokohama Kanagawa, Japan) and Rintaro Arai (Yokohama Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A memory system controls timing of a refresh operation. The memory system includes a non-volatile memory including first and second memory cell units and a controller connectable to a host. The controller stores an execution time of write and erase operations with respect to the first memory cell unit, rec...