ALEXANDRIA, Va., July 14 -- United States Patent no. 12,678,055, issued on July 14, was assigned to FOSTER ELECTRIC COMPANY Ltd. (Tokyo).
"Headset" was invented by Yo Hibino (Akishima, Japan) and Yasuo Kawana (Akishima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A headset includes: a hollow housing (10) to be worn at an ear of a user; a cylindrical ear canal insertion part (12) that is a portion of the housing (10), and that is provided at a portion of the housing (10) at a side of an ear canal; a driver (14) for signal output, provided at an interior of the housing (10); a microphone (18) provided so as to collect a signal propagating at a second hollow part (16A), extending from inside an ear can...