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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4965482 B1

PDFFull Text
Date of Patent:
Oct. 23, 1990

Filed:

Jun. 14, 1989

Ultrasonic motor and method of adjusting the same

Applicant:
Inventors:

Osamu Ohnishi, Tokyo, JP;

Sadayuki Takahashi, Tokyo, JP;

Osamu Myohga, Tokyo, JP;

Tadao Uchikawa, Tokyo, JP;

Takeshi Inoue, Tokyo, JP;

Isao Kagaya, Tokyo, JP;

Sadayuki Ueha, Tokyo, JP;

Assignee:

NEC Corporation, , JP;

Attorney:

Leydig, Voit & Mayer

Primary Examiner:

Mark O Budd

Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310323 ; 310325 ; 310333 ;
Abstract

An ultrasonic motor has a longitudinal-torsional composite transducer, a stator constituted by an ultrasonic vibrator sandwiching the transducer, and a rotor urged against the stator. The stator excites longitudinal-torsional ultrasonic vibrations to rotate the rotor by a frictional force. The motor includes a vibration adjusting rod for matching resonance frequencies of longitudinal and torsional ultrasonic vibrations of the stator with each other.

Find Patent Forward Citations

Ohnishi, Osamu. (1990). Ultrasonic motor and method of adjusting the same (U.S. Patent No. 4965482). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4965482

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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