ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,341, issued on July 15, was assigned to RICOH COMPANY LTD. (Tokyo).
"Imaging lens, camera, and portable information terminal apparatus" was invented by Kazuyasu Ohashi (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An imaging lens includes sequentially a first lens group, a second lens group having a positive refractive power, an aperture stop, a third lens group having a positive refractive power, and a fourth lens group. The first lens group includes, sequentially from the object side to the image side, a positive lens having a convex surface facing the object side, and a negative lens having a concave surface facing the image side. ...