ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,610, issued on Aug. 19, was assigned to TOPCON Corp. (Tokyo-to, Japan).
"Reference point indicating apparatus" was invented by Noriyasu Kiryuu (Tokyo-to, Japan), Ryosuke Jinnouchi (Tokyo-to, Japan) and Nobuyuki Nishita (Tokyo-to, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a reference point indicating apparatus comprising at least two link plates, a slide slit formed in each link plate, an indicator configured to be slidable along each slide slit and to be provided at an intersection of a center line of each slide slit, and at least three leg portions configured to be provided on the same circumference centered on the indicator,...