US Patent Issued to MURATA MANUFACTURING on March 3 for "Piezoelectric device including piezoelectric body layer with positive and negative polarization charges" (Japanese Inventor)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,568,767, issued on March 3, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).

"Piezoelectric device including piezoelectric body layer with positive and negative polarization charges" was invented by Munehito Chatani (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A layered portion includes, at least above an opening, a first single-crystal piezoelectric body layer, a second single-crystal piezoelectric body layer, an intermediate electrode layer, a lower electrode layer, and an upper electrode layer. The first single-crystal piezoelectric body layer includes a material that produces a difference in etching rate between a p...