ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,590, issued on June 10, was assigned to TSUBAKIMOTO CHAIN Co.

"Low-temperature storage system" was invented by Koichi Ishikawa (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "To provide a low-temperature storage system that can reduce unusable idle spaces to improve space efficiency for storing storage objects and to prevent a drop in cooling efficiency with simple structure. The low-temperature storage system includes a low-temperature storage chamber accommodating a rotary storage shelf, a moving mechanism having a holding part to carry a storage rack thereon for loading and unloading a storage object in the storage rack, and a pickin...