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. 17, 2012
Filed:
Dec. 13, 2007
Applicant:
Asami Tadokoro, Tokyo, JP;
Inventor:
Asami Tadokoro, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01); H04B 7/00 (2006.01); H04B 1/28 (2006.01); H04B 1/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device is provided, which comprises a first circuit including a variable resistance element, a second circuit electrically connected to the first circuit, and an antenna circuit configured to supply power to the first circuit. A resistance value of the variable resistance element is changed in accordance with the power supplied from the antenna circuit, and the variable resistance element is electrically connected in series between the second circuit and the antenna circuit.