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. 30, 2012
Filed:
Nov. 18, 2008
Kiyotaka Fukushima, Kanagawa, JP;
Kenji Yamamotoya, Kanagawa, JP;
Masayuki Miura, Kanagawa, JP;
Kenichiro Tami, Kanagawa, JP;
Kiyotaka Fukushima, Kanagawa, JP;
Kenji Yamamotoya, Kanagawa, JP;
Masayuki Miura, Kanagawa, JP;
Kenichiro Tami, Kanagawa, JP;
NHK Spring Co., Ltd., Yokohama-shi, JP;
Abstract
Without using a component such as a chip coil, a winding pattern is formed with a wire with which a main wiring pattern is formed. This enables to deal with the flexibility by realizing a thin product using a coil antenna. Further, the wiring pattern is designed such that the winding pattern is provided and distributed to the main wiring pattern forming a loop, and is formed with the wire so as to have a wound shape small enough compared with the main wiring pattern. In this way, the ratio of the self-inductance to the mutual inductance is appropriately made further large, so that the mutual inductance is made comparatively small.