US Patent Issued to JVCKENWOOD on Nov. 3 for "Method of manufacturing speaker diaphragm, speaker diaphragm, and speaker" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,786,649, issued on Nov. 3, was assigned to JVCKENWOOD Corp. (Yokohama, Japan).

"Method of manufacturing speaker diaphragm, speaker diaphragm, and speaker" was invented by Kazuyuki Inagaki (Yokohama, Japan) and Kazushi Kuroyanagi (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing a speaker diaphragm having a conductive layer and resin layers arranged to interpose the conductive layer is provided. The method includes: a first step of providing a through hole for causing a tinsel wire to pass through a conductive layer; and a second step of closing a mold, in which a punch having a diameter smaller than a diameter of t...