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:
Sep. 20, 2011
Filed:
Oct. 29, 2007
Taku Hirasawa, Kyoto, JP;
Jyunpei Matsuzaki, Osaka, JP;
Taku Hirasawa, Kyoto, JP;
Jyunpei Matsuzaki, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Oscillators (and) are attached to a spring material () whose both ends (and) are held, and piezoelectric elements (, and) are attached to the spring material or the oscillators. Assuming that an axis parallel to an axis connecting the both ends of the spring material is a Y-axis, an axis parallel to a plane including the Y-axis and the oscillators and orthogonal to the Y-axis is an X-axis, and an axis orthogonal to the Y-axis and the X-axis is a Z-axis, the oscillators are asymmetric with respect to a plane including the Y-axis and the Z-axis. Consequently, when acceleration is applied, torsional vibrations act on the spring material. When the torsional rigidity of the spring material is set to be low, the resonant frequency of the torsional vibrations can be reduced. Since the both ends of the spring material are held, the spring material is bent in a small amount. Therefore, it is possible to realize a downsized piezoelectric power generating mechanism with a low resonant frequency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile