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.:

US 7891077 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 22, 2011

Filed:

Jul. 24, 2008
Applicants:

Hyung Kun Lee, Daejeon, KR;

Nak Jin Choi, Daejeon, KR;

Kang Ho Park, Daejeon, KR;

Jong Dae Kim, Daejeon, KR;

Inventors:

Hyung Kun Lee, Daejeon, KR;

Nak Jin Choi, Daejeon, KR;

Kang Ho Park, Daejeon, KR;

Jong Dae Kim, Daejeon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of preparing a polymer actuator includes providing an ionic conductive polymer membrane; forming first and second metal electrodes respectively over first and second surfaces of the ionic conductive polymer membrane; substituting water used in the formation of the first and second metal electrodes with an ionic liquid stable to an electrolysis; and coating the first and second surfaces of the metal electrodes with a coating material.


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