ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,816, issued on Aug. 11, was assigned to JEOL Ltd. (Tokyo) and RIKEN (Saitama, Japan).

"Physical package for optical lattice clock" was invented by Shigenori Tsuji (Tokyo), Masao Takamoto (Saitama, Japan) and Hidetoshi Katori (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A physical package is provided with: a MOT device; an optical chamber which constitutes an optical lattice formation portion; and a vacuum chamber which surrounds these components and has a substantially cylindrical shape. The MOT device is arranged along the beam axis of an atomic beam and traps an atom cluster. The optical lattice formation portion uses optical lat...