ALEXANDRIA, Va., June 16 -- United States Patent no. 12,655,378, issued on June 16, was assigned to RIKEN (Saitama, Japan).

"Cell culture container, fixing tool, observation device, microscope and observation method" was invented by Masaya Hagiwara (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a cell culture vessel which allows resolution to be high in a Z-axis direction. A cell culture vessel (1) for accommodating a cell or cell tissue therein includes: a frame part (11) which is provided so as to be located at positions that correspond to respective sides of a polyhedral shape; a window part (12) which is light-transmissive and which is provided so as to be located at positions...