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Title:
WIRELESS POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/168307
Kind Code:
A1
Abstract:
Power transmission efficiency of at least a prescribed level can be realised in a stable fashion even in the event of change in the relative positional relationship of a power delivery device and a power-receiving device in the plane perpendicular to the direction of overlap (juxtaposition) of the power delivery device and the power-receiving device. A power delivery-side active electrode (12) and a power delivery-side passive electrode (13) are formed on a power delivery device (10). A power-receiving-side active electrode (22) and a power-receiving-side passive electrode (23) are formed on the power-receiving device (20). The power delivery-side active electrode (12) is of a rectangular shape that is short in a first direction and long in a second direction. The power-receiving-side active electrode (22) is of a rectangular shape that is long in the first direction and short in the second direction. The power delivery-side active electrode (12) and the power-receiving-side active electrode (22) are formed in such a way that, in an allowable range (100) in which the power-receiving device (20) can be placed on the power-delivery device (10), the length of the region where these face each other in the first direction and the length thereof in the second direction do not change.

Inventors:
SUESADA, Tsuyoshi (Ltd. 10-1 Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
KATO, Kazuya (Ltd. 10-1 Higashikotari 1-chome, Nagaokakyo-sh, Osaka 55, 〒6178555, JP)
TAKAHASHI, Hironobu (Ltd. 10-1 Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2012/078113
Publication Date:
November 14, 2013
Filing Date:
October 31, 2012
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H01P5/02; G06F1/16; G06F1/26; H02J7/00
Foreign References:
JP2012050314A2012-03-08
JP2012070574A2012-04-05
JP2012095505A2012-05-17
JPH1032424A1998-02-03
Other References:
See also references of EP 2712054A4
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (1-4-34, Noninbashi Chuo-ku, Osaka-sh, Osaka 11, 〒5400011, JP)
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