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. 04, 1998
Filed:
Jan. 11, 1996
Applicant:
Inventors:
Isao Iwai, Utsunomiya, JP;
Reiji Mitarai, Hachioji, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02N / ;
U.S. Cl.
CPC ...
318116 ; 310316 ; 310317 ;
Abstract
A vibration type motor apparatus including a control system for applying a cyclic signal to an electro-mechanical energy conversion element to drive a vibration member, and obtaining a driving force therefrom. The system solves the problem of a dead band in the motor apparatus and provides a motor having good response characteristics and good controllability.