ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,175, issued on Feb. 17.

"Head positioning standardization method" was invented by Han-Joon Kim (Hyogo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of positioning a patient's head includes a profile positioning step and a front positioning step. In the profile positioning step, the vertical position of a first camera is adjusted and the patient is instructed to adjust the forward-backward position of their head so a point of intersection of a first vertical reference line and a first horizontal reference line is in the center of the patient's ear canal In the front positioning step, the vertical position of a second camera is adjust...