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:
Feb. 10, 1987
Filed:
Feb. 21, 1986
Applicant:
Inventor:
Akio Kumada, Kokubunji, JP;
Assignee:
Hitachi Maxell, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310323 ; 310328 ; 310333 ;
Abstract
An ultrasonic motor having a cantilever type longitudinal/torsional vibration coupling element with a beam and a rotor rotated by the vibration of the beam. The rotor is provided with contacting surface for only contacting the beam in the outer peripheral portion of the surface of the beam away from the torsional vibration axis of the beam.