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.:
Date of Patent:
Oct. 08, 1991
Filed:
Dec. 21, 1990
Applicant:
Inventor:
Chiaki Umemura, Toyohashi, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310323 ;
Abstract
An ultrasonic motor comprises an elastic member inserted between a piezoelectric vibrator and a rotor. The elastic member comprises a base portion and plurality of projecting portions. Each of the projecting portions tapers toward its free end and is preferably of trapezoidal shape. The ratio of height to maximum width for each projecting portion is at least 1.0. The elastic member has a natural frequency substantially corresponding to a drive frequency of the vibrator.
Umemura, Chiaki. (1991). Ultrasonic motor (U.S. Patent No. 5055732). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5055732
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile