Control method for piezoelectric motor and robot
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 5, 2023
Grant Date -
Aug 11, 2022
app pub date -
Feb 7, 2022
filing date -
Feb 9, 2021
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A piezoelectric motor includes a driven member rotating around a rotation axis, and a plurality of piezoelectric vibrators rotating the driven member by transmitting drive forces to the driven member. The plurality of piezoelectric vibrators includes a first piezoelectric vibrator and a second piezoelectric vibrator at a larger distance from the rotation axis than the first piezoelectric vibrator. The control method for the driven member includes, for acceleration of the driven member, rotating the driven member by the drive force of the second piezoelectric vibrator when a rotation velocity of the driven member is lower than a first velocity, and rotating the driven member by the drive force of the first piezoelectric vibrator when the rotation velocity of the driven member is equal to or higher than the first velocity.
First Claim
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International Classification(s)
- 2022 Application Filing Year
- H02N Class
- 269 Applications Filed
- 99 Patents Issued To-Date
- 36.81 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H02N Class
- 0 % this patent is cited more than
- 2 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Mar 5, 2027 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 5, 2031 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 5, 2035 |
