ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,903, issued on Nov. 11, was assigned to Sharp Display Technology Corp. (Kameyama, Japan).

"Detector device" was invented by Kei Ikuta (Kameyama, Japan), Takeshi Hara (Kameyama, Japan), Tomoko Teranishi (Kameyama, Japan) and Tomohiro Kosaka (Kameyama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A detector device includes a pair of filter electrodes, a collector electrode collecting charged particles that pass through a space between the pair of filter electrodes, and a detection circuit connected to the collector electrode and detecting an amount of the charged particles that are collected. The collector electrode includes an upper electrode...