US Patent Issued to OMRON on May 26 for "Push button switch" (Japanese Inventors)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,319, issued on May 26, was assigned to OMRON Corp. (Kyoto, Japan).

"Push button switch" was invented by Naoya Kakimoto (Kyoto, Japan), Hajime Kawai (Kyoto, Japan), Shigenobu Kishi (Kyoto, Japan) and Junichi Seto (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A push button switch 1 comprises: a push button 10 that can be pushed in; a movable contact 120 that is linked to the push button 10; and a fixed contact 121 that comes into contact with or separates from the movable contact 120 by operation of the movable contact 120. The push button switch 1 further comprises a light-emitting element 130 for emitting light, and a light-receiving e...