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:
Dec. 10, 2013
Filed:
Mar. 31, 2011
Akihiro Iino, Chiba, JP;
Yukio Akiyama, Chiba, JP;
Satoshi Sakai, Chiba, JP;
Takuo Oosaki, Chiba, JP;
Masakazu Hirabayashi, Chiba, JP;
Masatomo Moriko, Chiba, JP;
Akihiro Iino, Chiba, JP;
Yukio Akiyama, Chiba, JP;
Satoshi Sakai, Chiba, JP;
Takuo Oosaki, Chiba, JP;
Masakazu Hirabayashi, Chiba, JP;
Masatomo Moriko, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
An ultrasonic motor exhibits stable performances by suppressing irregularities of magnitudes of two standing waves excited by a piezoelectric element. A plurality of divided electrodes are mounted on one surface of the piezoelectric element and are equidistantly arranged in the circumferential and radial directions and have equal polarized areas. Alternate ones of the divided electrodes are short-circuited in the radial direction by inner electrodes arranged on the inner peripheral side of the divided electrodes, and the other alternate ones of the divided electrodes are short-circuited in the radial direction by outer electrodes arranged on the outer peripheral side of the divided electrodes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile