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:
Apr. 10, 2007
Filed:
Mar. 09, 2006
Mitsuo Usami, Tachikawa, JP;
Akira Sato, Fuchu, JP;
Mitsuo Usami, Tachikawa, JP;
Akira Sato, Fuchu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A wireless IC tag is provided which includes a plate-shaped first conductor, a plate-shaped second conductor, and an IC chip which is sandwiched between the first conductor and the second conductor via a front surface and a rear surface of the IC chip. The IC chip includes a double voltage rectifier circuit to rectify an alternating voltage induced between the front surface and the rear surface of the IC chip. The second conductor functions as an antenna and also includes a slit extending from a center portion thereof in a longitudinal direction. The first conductor electrically connects both sides of the slit via the front surface and the rear surface of the IC chip.