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:
Sep. 13, 2016
Filed:
Jun. 21, 2012
Takashi Ito, Kuwana, JP;
Naota Yamamoto, Kuwana, JP;
Tsukasa Yamakawa, Kuwana, JP;
Hirohide Komatsu, Yamato, JP;
Tsutomu Sawa, Yamato, JP;
Takashi Ito, Kuwana, JP;
Naota Yamamoto, Kuwana, JP;
Tsukasa Yamakawa, Kuwana, JP;
Hirohide Komatsu, Yamato, JP;
Tsutomu Sawa, Yamato, JP;
NTN CORPORATION, Osaka, JP;
KRD CORPORATION, Kanagawa, JP;
Abstract
A bearing assembly includes an IC tag with information to be reliably exchanged between the IC tag and an external reader/writer, and a rolling bearing including outer and inner races and rolling elements disposed between the outer and inner races. The IC tag communicates with the external reader/writer device without contacting the reader/writer device, is attached to a metal member of the rolling bearing, includes a tag antenna, and is configured so information can be exchanged between the tag antenna and a reader/writer antenna of the reader/writer device by forming a closed magnetic circuit between the tag antenna and the reader/writer antenna. The IC tag is received in a hole in a metal member surface. The tag antenna includes at least two protrusions facing the opening of the hole and arranged so magnetic fluxes leaving/entering the protrusions pass inside the edge defining the hole opening and extend outside the hole.