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:
Jul. 31, 1990
Filed:
Jul. 20, 1988
Applicant:
Inventor:
Keisuke Honda, Aichi, JP;
Assignee:
Honda Electric Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310323 ; 310366 ; 310333 ;
Abstract
In the present invention, a stator consists of a piezoelectric vibrator having divided electrodes on at least one end, alternating current voltage is applied to each of the divided electrodes of one end and one electrode or each of the divided electrodes of the other end of the stator, and a member to be driven is placed on the end or side portion of the stator. The member is reversibly driven by a reversible circumferential progressive wave produced on the end and side portions.