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.

Date of Patent:
Apr. 14, 2009

Filed:

Jun. 07, 2005
Applicants:

Taku Hirasawa, Kyoto, JP;

Hironori Kumagai, Osaka, JP;

Inventors:

Taku Hirasawa, Kyoto, JP;

Hironori Kumagai, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

In an actuator, which includes a driverincluding: a substratehaving a predetermined width and a predetermined length when viewed from the direction of thickness of the substrate; a reinforcing memberprovided on one of the thickness-wise faces of the substrate; and displacement means (a piezoelectric element), provided on the other thickness-wise face of the substrate, for displacing, with respect to one of the lengthwise ends of the substrate, the other lengthwise end in the direction of width of the substrate, the reinforcing memberis configured so that the flexural rigidity thereof in the substrate's width direction is lower than that in the substrate's thickness direction.


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