ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,847, issued on June 30, was assigned to Tokyo Ohka Kogyo Co. Ltd. (Kawasaki, Japan).

"Cell screening device and cell screening kit" was invented by Takashi Ohsaka (Kawasaki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cell screening device having a bottom plate part; a cell placement membrane provided on the bottom plate part and forming a cell placement surface; a pair of fluid injection parts provided on the bottom plate part and partitioned from the cell placement membrane; and a flow channel provided between the bottom plate part and the cell placement membrane and having flow channel end portions extending to the fluid injection part...