ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,221, issued on May 13, was assigned to ThinkCyte K.K. (Tokyo) and The University of Tokyo (Tokyo).
"Observation device" was invented by Toru Imai (Tokyo) and Sadao Ota (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An observation device includes an illumination optical system and an observation optical system. The illumination optical system includes a light source and an aperture member. The observation optical system includes an objective lens, an optical structure, and a detector. The optical structure is disposed at a first position which is the position conjugate with the aperture member. The optical structure includes a blocking portion...