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:
Oct. 03, 1995
Filed:
Sep. 09, 1994
Mitsunori Sano, Tokyo, JP;
Masako Inagawa, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A strain generating element for generating a strain in accordance with an externally provided driver voltage, a diaphragm secured to one end surface of the strain generating element and having a projecting portion, a case for encasing the strain generating element therein, a first coupler attached to the case, and a second coupler attached to the other end. A first coupler of a first piezoelectric actuator is connectable to a second coupler of a second piezoelectric actuator so that an elongation of the first actuator is transferred to the second actuator through a projecting portion of the first actuator to thereby add the elongation of the first actuator to an elongation of the second actuator in a uniform direction of elongation.