ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,930, issued on March 11, was assigned to Sumitomo Riko Co. Ltd. (Aichi, Japan).

"Electrostatic transducer" was invented by Shinya Tahara (Aichi, Japan), Masaki Nasu (Aichi, Japan) and Katsuhiko Nakano (Aichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electrostatic transducer (1) includes: an insulator sheet (11); a first electrode sheet (12); a lead (30); a first bonding part (61), electrically bonding the first electrode sheet (12) with a core wire (30a) of the lead (30) in a first area (Pa) where the first electrode sheet (12) and the core wire (30a) of the lead (30) are disposed overlapping each other; and a second bonding part (62...