Piezoelectric drive device, piezoelectric motor, robot, electronic component transport apparatus, and printer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 23, 2021
Grant Date -
Oct 4, 2018
app pub date -
Mar 28, 2018
filing date -
Mar 31, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A piezoelectric drive device includes a piezoelectric actuator which includes a vibration portion that vibrates and a protruding portion that protrudes from the vibration portion, a driven member, an optical scale, a sensor which receives transmitted light or reflected light from the optical scale and outputs a signal in accordance with intensity of the received light, in which a facing area of the optical scale and the sensor is disposed to be deviated to one side in a direction in which the optical scale and the sensor are aligned with respect to a contact portion between the protruding portion and the driven member.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2018 Application Filing Year
- H02N Class
- 373 Applications Filed
- 256 Patents Issued To-Date
- 68.64 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H02N Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 23, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 23, 2032 |
