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. 08, 2009
Filed:
Dec. 17, 2004
Wataru Hattori, Tokyo, JP;
Hiroo Hongo, Tokyo, JP;
Fumiyuki Nihei, Tokyo, JP;
Hiroshi Sunamura, Tokyo, JP;
Wataru Hattori, Tokyo, JP;
Hiroo Hongo, Tokyo, JP;
Fumiyuki Nihei, Tokyo, JP;
Hiroshi Sunamura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
When a predetermined voltage is applied between electrodes (), metal ions deposit in a solid electrolyte (), and thereby a conduction channel () is formed therein. The solid electrolyte switch () is thus turned on. Because this deposition mechanism is reversible, application of reverse voltage between the electrodes of the solid electrolyte switch () already turned on makes the deposited metal atoms to migrate in the solid electrolyte to thereby thin the conduction channel, thereby the channel finally disappears, and the solid electrolyte switch () is turned into a non-conductive state. Use of this switch successfully realizes an IC tag which can automatically be nullified without artificial nullification.