ALEXANDRIA, Va., June 2 -- United States Patent no. 12,646,665, issued on June 2, was assigned to OMRON Corp. (Kyoto, Japan).
"Push button switch" was invented by Naoya Kakimoto (Kyoto, Japan), Shun Kato (Kyoto, Japan), Hajime Kawai (Kyoto, Japan) and Masaki Sugihara (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A push button switch includes a push button, a movable contact that moves together with the push button, and a fixed contact with respect to which the movable contact comes into contact or separates in accordance with the operation of the movable contact. The push button switch includes a light emitting element, and a light receiving element. A light emitting position where light emitt...