ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,487, issued on Sept. 23, 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 including a bottom plate, a cell placement membrane, a pair of fluid injection parts, and a flow channel, the flow channel being formed between the bottom plate and the cell placement membrane and extending in such a manner that the flow channel end parts respectively reach the fluid injection parts. In the cell placement membrane, a plurality of wells, each having a size capable of housing a single c...