ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,610, issued on Nov. 18, was assigned to MURATA MANUFACTURING Co. LTD. (Nagaokakyo, Japan).
"Piezoelectric vibrator and manufacturing method therefor" was invented by Shigeo Ojima (Nagaokakyo, Japan), Masaki Ushiro (Nagaokakayo, Japan) and Hiroyuki Yamamoto (Nagaokakayo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A crystal vibrator that includes a crystal vibration element having a crystal piece and a pair of electrodes that face each other with the crystal piece interposed therebetween; and a holder that accommodates the crystal vibration element. At least one electrode of the pair of electrodes includes an upper layer containing gold and ...