Displacement detection sensor and operation input device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 16, 2018
Grant Date -
Sep 3, 2015
app pub date -
May 8, 2015
filing date -
Jan 18, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A displacement detection sensor has a plate member and piezoelectric sensors with a piezoelectric film of PLLA. The piezoelectric sensors are mounted on the face of the plate member on the opposite side of the operation surface thereof. Tensile stresses are generated in the entire face of the plate member at pressing the operation surface. The piezoelectric sensor is mounted so that the direction of macro tensile stress in the plate member in the region in which the piezoelectric sensor is mounted and molecular orientation direction of the piezoelectric film intersect each other at an angle of 45°. The piezoelectric sensor is mounted so that the direction of macro tensile stress in the plate member in the region in which the piezoelectric sensor is mounted and molecular orientation direction of the piezoelectric film intersect each other at an angle of approximately 45°.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
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