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 7154209 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 26, 2006

Filed:

Dec. 16, 2003
Applicant:

Tadashi Fujinawa, Sakado, JP;

Inventor:

Tadashi Fujinawa, Sakado, JP;

Assignee:

Hephaist Seiko Co. Ltd, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/09 (2006.01);
U.S. Cl.
CPC ...
Abstract

A control apparatus of an ultrasonic motor, comprises a driving wave number determining means for determining a driving wave number based on the targeted displacement of a driven object driven by the ultrasonic motor, a normative driving wave generating means for generating continuously normative driving waves in the number of times determined at the driving wave number determining means, inserted an interval determined based on the targeted velocity of the driven object, every at least one cycle of the normative driving waves, and a driving wave generating means for generating driving waves having the predetermined frequency and the predetermined amplitude based on the normative driving waves generated at the normative driving wave generating means.


Find Patent Forward Citations

Fujinawa, Tadashi. (2006). Control method and apparatus of an ultrasonic motor, and an ultrasonic motor driver and controller (U.S. Patent No. 7154209). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7154209

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

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