Tuning fork type piezoelectric vibration piece and tuning fork type piezoelectric vibrator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 17, 2017
Grant Date -
Jan 7, 2016
app pub date -
May 27, 2014
filing date -
Jun 26, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tuning fork type piezoelectric vibration piece 2 includes a base portion 25 in which a piezoelectric vibration substrate has a connection area with an external element, and a pair of leg portions 21, 22 projecting from a first end face of the base portion. The pair of leg portions has vibrating portions 212, 222 equipped with drive electrodes, wide weight portions 211, 221 formed at tip ends of the vibrating portions, and connecting portions 213, 223 between the vibrating portions and the weight portions. The connecting portions have widening sections whose width increases exponentially from the vibrating portions to the weight portions. The length of the widening sections is greater than their width. The weight portions have constant-width parts whose width is fixed from their connecting positions with the connecting portions. The weight portions are free of drive electrodes.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully