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:
Feb. 05, 2008
Filed:
Jun. 17, 2003
Applicants:
Hiroto Watanabe, Ibaraki, JP;
Kazuhiko Daido, Ibaraki, JP;
Inventors:
Hiroto Watanabe, Ibaraki, JP;
Kazuhiko Daido, Ibaraki, JP;
Assignee:
Hitachi Maxell, Ltd., Ibaraki-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A contactless communication system information carrier which is high in handleability and yield but low in cost is provided. It includes a core piecein which an IC chipwith an antenna coilintegrally formed on one surface is fitted inside a recessof a core piece body, a non-metal spacerin which the core pieceis fitted to a fitting partlocated in a center of the spacerto retain the core pieceand a metal weightplaced and coupled so as to surround an outer periphery of the spacer. The antenna coiland the metal weightare separated from each other via the spacer