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. 07, 1993
Filed:
Feb. 26, 1992
Applicant:
Inventors:
Assignees:
Agency of Industrial Science and Technology, Tokyo, US;
Ministry of International Trade and Industry, Tokyo, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G / ;
U.S. Cl.
CPC ...
204282 ; 204252 ; 310800 ; 604 20 ; 604 22 ; 604 95 ; 128772 ;
Abstract
An actuator element comprises an ion exchange membrane and a pair of electrodes attached to opposite surfaces of the ion exchange membrane; the ion exchange membrane in a water-containing state being caused to bend and/or deform by application of an electric potential difference thereacross.