ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,642, issued on April 14, was assigned to FOSTER ELECTRIC COMPANY Ltd. (Tokyo).
"Headset" was invented by Yo Hibino (Akishima, Japan), Yasuo Kawana (Akishima, Japan) and Hikaru Watanabe (Akishima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A headset includes: a hollow housing to be worn at an ear of a user; a cylindrical ear canal insertion part that is a portion of the housing, and that is provided at a portion of the housing at a side of an ear canal; a thermistor for a headset, provided at the ear canal side inside the housing; a temperature sensor for a headset on a main substrate, provided at an opposite side from the ear canal side i...