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 7405664 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 29, 2008

Filed:

Feb. 09, 2005
Applicants:

Isao Sakama, Hiratsuka, JP;

Minoru Ashizawa, Tokyo, JP;

Inventors:

Isao Sakama, Hiratsuka, JP;

Minoru Ashizawa, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/14 (2006.01); H01Q 1/38 (2006.01); H05K 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A radio frequency IC tag and a manufacturing method for the same includes an IC chip on which information is stored, and an antenna for transmitting the information that is stored on the IC chip. In the antenna, a power-feeding part on which the IC chip is mounted extends along a direction in which an electric current flows. Radiation parts are formed so that the width of the radiation parts becomes wider than that of the power-feeding part with respect to the longitudinal axis of the power-feeding part. The radiation parts extend from the power-feeding part, at both sides thereof, along the direction in which the electric current flows.


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