ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,538,059, issued on Jan. 27, was assigned to Pioneer Corp. (Kanagawa, Japan) and Tohoku Pioneer Corp. (Yamagata, Japan).
"Speaker device" was invented by Kazuaki Watanabe (Yamagata, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A speaker includes: a vibrating body including a diaphragm and an edge; a coil directly or indirectly attached to the diaphragm; a pair of lead wires electrically connected to the coil; a yoke; a frame which supports the diaphragm via the edge and in which a magnetic circuit is housed; and an inner terminal to which the lead wire is connected. A passage through which the lead wire passes is disposed between the coil and the...