ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,903, issued on Feb. 3, was assigned to TOYO KOHAN Co. LTD. (Tokyo).
"Pinhole detection device" was invented by Ryou Babasaki (Kudamatsu, Japan), Kaoru Imashige (Kudamatsu, Japan) and Katsunari Miyake (Kudamatsu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The problem solved by the present invention is to provide a pinhole detection device with an improved accuracy of detecting pinholes. The detection unit of the pinhole detection device includes a plurality of optical fibers that transmit light that has passed through the object to be inspected. The plurality of optical fibers are arranged side by side while facing a light source. When a max...