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:
Aug. 21, 2007
Filed:
Jul. 31, 2006
Toshiaki Ibi, Tokyo, JP;
Shigeru Hashimoto, Tokyo, JP;
Yoshiyasu Sugimura, Tokyo, JP;
Fujitsu Frontech Limited, Tokyo, JP;
Abstract
In order to provide a compact loop antenna, for use in an inductive read/write apparatus, capable of extending a communication range even if the antenna area or power supply thereto is constrained, a compact loop antenna, for use in an inductive read/write apparatus, comprises two layers of loop antennas, each thereof comprising a printed circuit boardfor featuring a loop pattern, a loop patternformed by an etching process on the printed circuit board, and a start terminaland a end terminalfor supplying power for signal transmission and outputting a received signal and each thereof maintaining a predetermined distance from each other.