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:
Aug. 13, 1996
Filed:
Feb. 14, 1995
Hiroyuki Furukoshi, Aichi-ken, JP;
Asmo Co., Ltd., Shizuoka-ken, JP;
Abstract
A drive circuit for an ultrasonic motor and, more particularly, a drive circuit for an ultrasonic motor which supplies the ultrasonic motor with drive signals of a predetermined frequency and controls the frequency of the drive signals to drive the ultrasonic motor is disclosed. The disclosed drive circuit for an ultrasonic motor drives an ultrasonic motor without generating a remarkable audible sound, even when a detection signal exceeds a predetermined level within a very short time due to the generation of an audible sound in the ultrasonic motor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile