Global IP Counselors, LLP
Piezoelectric vibrator, method for adjusting piezoelectric vibrator, piezoelectric actuator, timepiece, and electronic device
Piezoelectric vibrators provided with an electrode that includes a drive electrode and adjustment electrodes formed in advance on part of the electrode; the drive electrode and adjustment electrodes that are initially electrically connected to each other are electrically cutoff and insulated from each other by cutting conductive parts between the drive electrode and adjustment electrodes, or the mutually insulated drive electrode and adjustment electrodes are electrically connected using solder, a wire, or another electrically conductive member, whereby the characteristic frequencies are adjusted.
Seiko Epson Corporation
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G04C H02N H02N H01L H01L G04C H01L
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Shigeaki Akihiro Susumu
Seki Sawada Kayamori