US Patent Issued to SILICON & SYSTEM on Sept. 29 for "Acoustic element and acoustic element integrated circuit" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,574, issued on Sept. 29, was assigned to SILICON & SYSTEM Co. Ltd. (Hong Kong).

"Acoustic element and acoustic element integrated circuit" was invented by Yoshitaka Tadaki (Tokyo), Shin-ichiro Umemura (Sendai, Japan) and Kaoru Ogaya (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "This acoustic element includes: a first electrode base (12); a second electrode base (11) facing the first electrode base; first electrode-side protrusions (12aq-1, 12aq, 12aq+1.. ) provided on the first electrode base and having a first stepped side wall inclined at an angle of 45deg or less with respect to a vibration direction; and second-electrode-side protrusion...