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:
Oct. 11, 2011
Filed:
Sep. 19, 2008
Noriyuki Oroku, Takasaki, JP;
Naoya Kanda, Fujisawa, JP;
Hidehiko Kando, Matsudo, JP;
Kouichi Uesaka, Yokohama, JP;
Noriyuki Oroku, Takasaki, JP;
Naoya Kanda, Fujisawa, JP;
Hidehiko Kando, Matsudo, JP;
Kouichi Uesaka, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A circuit chip having a loop-shaped antenna coil on a main surface and a tag sheet having an antenna pattern on a main surface are prepared, and the circuit chip is mounted on the main surface of the tag sheet so as not to place over the antenna pattern. The circuit chip is placed closely to the antenna pattern, and at least the half of the main surface is desirably faced against the antenna pattern. Thus, signals and/or power can be securely exchanged between the circuit chip (or antenna coil) and the antenna pattern. Therefore, a high-performance and rigid RFID tag can be obtained by roughly aligning the circuit chip and the tag sheet.