Ultrasonic motor

Details Ultrasonic motor Ultrasonic motor

2005-04-27

2009-10-13

Benson, Walter (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S323120

Reexamination Certificate

active

07602103

ABSTRACT:
The present invention relates to an ultrasonic motor comprising a stator formed by using an acoustic waveguide of helical coil shape or an acoustic waveguide of in-plane spiral coil shape, so that a rotor placed in close proximity to, or in close contact with the coil is rotated, traveled, or performed curved line movement by the propagation of the wave on the stator, thereby eliminating the provision of a preload spring and an absorber, simplifying the structure of the motor, reducing the size of the motor, and enabling to work in a liquid environment without water proofing and rotation of a hollow tube.

REFERENCES:
patent: 4827487 (1989-05-01), Twerdochlib
patent: 6771919 (2004-08-01), Koide
patent: 2001/0043864 (2001-11-01), Maruyama et al.
patent: 2002/0175582 (2002-11-01), Lopatinsky et al.
patent: 2005/0081365 (2005-04-01), Gorohata et al.
patent: 2005/0127782 (2005-06-01), Endo et al.
patent: 63-150062 (1988-06-01), None
patent: 04-111291 (1992-09-01), None
patent: 7-88788 (1995-04-01), None
patent: 10-85221 (1998-04-01), None
patent: 10-296186 (1998-11-01), None
patent: 2000-102271 (2000-04-01), None
patent: 2002-306491 (2002-10-01), None
patent: 2003-510158 (2003-03-01), None
patent: 2003-116869 (2003-04-01), None
patent: 2003-527155 (2003-09-01), None
patent: 2004-336956 (2004-11-01), None
patent: 2005-74361 (2005-03-01), None
J.L. Pons, H. Rodriguez, R. Ceres, and L. Calderón, Novel Modeling Technique for the Stator of Traveling Wave Ultrasonic Motors, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 50, No. 11, Nov. 2003.
R. Carotenuto, A. Iula and G. Caliano, Flexible piezoelectric motor based on an acoustic fiber, Applied Physics Letters, vol. 77, No. 12, Sep. 18, 2000.
B. Chen, B.A. Cheeseman, A. Safari, S.C. Danforth and Tsu-Wei Chou, Theoretical and Numerical Predictions of the Electromechanical Behavior of Spiral-Shaped Lead Zirconate Titanate (PZT) Actuators, IEEE Translations on Ultrasonics, and Frequency Control, vol. 49, No. 3, Mar. 2002.
K. Uchino, Piezoelectric Actuatorsand Ultrasonic Motors, Kluwer Academic, Boston 1977.
T. Moriya, Y. Furukawa, A. Nakajima, and Y. Akano, Development of a Miniature Ultrasonic Motor Using a Helical Coil as a Stator, 2005 IEEE Ultrasonics Symposium.
T. Moriya, Y. Furukawa, Y. Akano and A. Nakajima, Experimental Study on a Miniature Ultrasonic Motor Using a Coiled Stator, IEICE Technical Report US2005-29 (Jul. 2005).
A. Nakajima, Y. Furukawa and T. Moriya, “Propagation of Ultrasonic Wave on a Coiled Waveguide and its Application to a Micro-Motor,” The First International Workshop on Ultrasonic Motors and Actuators, Nov. 14-15, 2005, Yokohama, Japan.
K. Asai and M.K. Kurosawa, Simulation Model pf Surface Acoustic Wave Motor Considering Tangential Rigidity, IEICE translation A vol. J85-A No. 12, pp. 14281439, Dec. 2002.
T. Morita, M.K. Kurosawa and T. Higuchi, A cylindrical shaped micro ultrasonic motor utilizing PZT thin film (1.4 mm in diameter and 5.0 mm long stator transducer), Sensors and Actuators A 83(2000) 225.230.
M. Morita, Miniature piezoelectric motors, Sensors and Actuators A 103(2003) 291-300.
T. Kanda, A. Makino, K. Suzumori, T. Morita and M.K. Kurosawa, A Cylindrical Micro Ultrasonic Motor Using a Micro-machined Bulk Piezoelectric Transdeucer, 2004 IEEE Ultrasonics Symposium.
T. Maeno, T. Tsukimoto and A. Miyake, Finite-Element Analysis of the Rotor/Stator Contact in a Ring-Type Ultrasonic Motor, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 39, No. 6, Nov. 1992.
S. Dong, S.P. Lim, K.H. Lee, J. Zhang, L.C. Lim and K. Uchino, Piezoelectric Ultrasonic Micromotor with 1.5 mm Diameter, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 50, No. 4, Apr. 2003.
T. Morita, M.K. Kurosawa and T. Higuchi, A Cylindrical Micro Ultrasonic Motor Using PZT Thin Film Deposited by Single Process Hydrothermal Method (ø2.4mm, L:10mm Stator Transducer), IEEE Transactions on Utrasonics, Ferroelectrics, and Frequency Control, vol. 45, No. 5, Sep. 1998.
M. Dubois and P. Muralt, PZT Thin Film Actuated Elastic Fin Micromotor, IEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 45, No. 5, Sep. 1998.
J.T. Leinvuo, S.A. Wilson and R.W. Whatmore, Flextensional Ultrasonic Motor Using the Contour Mode of a Square Piezoelectric Plate, IEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 51, No. 8, Aug. 2004.
Y. Ming, R.C. Richardson, M.C. Levesley, P.G. Walker and Kevin Watterson, Performance Improvement of Rectangular-Plate Linear Ultrasonic Motors Using Dual-Frequency Drive, IEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 51, No. 12, Dec. 2004.
M. Aoyagu, S.P. Beeby and N.M. White, A Novel Multi-Degree-of-Freedom Thick-Film Ultrasonic Motor, IEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 49, No. 2, Feb. 2002.
International Search Report dated Aug. 23, 2005.
Sadayuki Ueha et al., “Ultrasonic Motor”, Ceramics 21, No. 1, pp. 12-14, Japan (1986).
Sadayuki Ueha et al., “Ultrasonic Motor”, Ceramics 21, No. 1, pp. 9-14, Japan (1986).
R. Carotenuto et al., “Flexible piezoelectric motor based on an acoustic fiber”, Applied Physics Letters, vol. 77, No. 12, pp. 1905-1907 (Sep. 18, 2000).
S. Iwamatsu et al., “Rotary Ultrasonic Motor using Extensional Vibration of a Ring”, Japanese Journal of Applied Physics, vol. 25, Supplement 25-1, pp. 174-176 (1986).
K. Uchino et al., “Micromechatronics”, Chapter 10, Ultrasonics Motor Applications, pp. 417-430, Marcel Dekker Inc., (2003).
Office Action of Japanese Patent Application No. 2006-513683 mailed Jul. 28, 2009 (Japan).
Office Action of Chinese Patent Application No. 2005800141615 issued on May 8, 2009 (China).

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