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:
Apr. 05, 1994
Filed:
Jan. 30, 1992
Ichiro Okumura, Yokohama, JP;
Hitoshi Mukohjima, Yokohama, JP;
Takayuki Tsukimoto, Kawasaki, JP;
Akio Atsuta, Kawasaki, JP;
Koichi Ueda, Yokohama, JP;
Hajime Kanazawa, Tama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A vibration wave device having a resilient member, and electro-mechanical energy conversion means for inducing a travelling vibration wave in the resilient member, the travelling vibration wave being used as a drive source, includes means provided on at least one member of the vibration wave device at a location integer times or approximately integer times 1/2 of the wavelength of a vibration wave which may produce noise and making the dynamic rigidity of the member non-uniform.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile