ALEXANDRIA, Va., July 9 -- United States Patent no. 12,356,070, issued on July 8, was assigned to Canon K.K. (Tokyo).
"Focus information obtaining apparatus, focus information obtaining method, and computer readable storage medium for obtaining information on a focus state based on an output of a detector" was invented by Taiki Homma (Tochigi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A focus information obtaining apparatus including a detector, a controller, and an obtaining unit. The detector is configured to detect at least a part of a light beam from an object via an optical member. The controller is configured to control driving of the detector. The obtaining unit is configured to obtain info...