ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,713, issued on March 11, was assigned to STANLEY ELECTRIC Co. LTD. (Tokyo).
"Lighting tool for vehicle" was invented by Daisuke Nakashima (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-guide-part has width that gradually increases from first-end toward second-end and shape in which both sides of the light-guide-part in widthwise direction having optical axis interposed between are curved toward one-direction. An incidence-part has incidence-surface located in central part of the first-end of the light-guide-part and facing light source. The incidence-surface has shape in which both sides of the incidence-surface in the widthwise dire...