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:
Jan. 27, 2009
Filed:
Mar. 08, 2005
Shinichi Kuroda, Tokyo, JP;
Tomoya Yamaura, Tokyo, JP;
Akira Iga, Kanagawa, JP;
Katsumi Okayama, Kanagawa, JP;
Shinichi Kuroda, Tokyo, JP;
Tomoya Yamaura, Tokyo, JP;
Akira Iga, Kanagawa, JP;
Katsumi Okayama, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Disclosed is a flat-type antenna apparatus which has a radiating conductor and a reference conductor disposed opposite to each other and performs feeding between the radiating conductor and the reference conductor at a position offset from the center of the radiating conductor center. The antenna includes: an insulative material layer which has relative magnetic permeability greater than 1 and is placed in a gap between the radiating conductor and the reference conductor; and a short-circuiting conductor which is disposed at a position to suppress unintended excitation and enables electric conduction between the radiating conductor and the reference conductor.