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:
Mar. 03, 2009
Filed:
Dec. 19, 2006
Applicants:
Katsuyoshi Matsuura, Tokyo, JP;
Katsumi Katakura, Tokyo, JP;
Taiga Matsushita, Tokyo, JP;
Inventors:
Assignee:
Lintec Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
An antenna circuit includes a plurality of antenna circuit units on a circuit substrate. The plurality of antenna circuit units includes: a large antenna circuit unit whose circuit size is large; and a small antenna circuit unit whose circuit size is smaller than the size of the large antenna circuit unit, the small antenna circuit unit provided inside the large antenna circuit unit and provided detachable from the large antenna circuit unit.