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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.:

US 9490064 B1

PDFFull Text
Date of Patent:
Nov. 08, 2016

Filed:

Jul. 27, 2012

Wireless power transmission method

Applicants:

Atsushi Hirosawa, Utsunomiya, JP;

Tomoaki Nakagawa, Sakura, JP;

Inventors:

Atsushi Hirosawa, Utsunomiya, JP;

Tomoaki Nakagawa, Sakura, JP;

Assignee:

HONDA MOTOR CO., LTD., Tokyo, JP;

Attorney:

Squire Patton Boggs (US) LLP

Primary Examiner:

Jared Fureman

Assistant Examiner:

Duc M Pham

Int. Cl.
CPC ...
H01F 27/42 (2006.01); H01F 38/14 (2006.01); B60L 11/18 (2006.01); H02J 5/00 (2016.01); H02J 7/02 (2016.01);
U.S. Cl.
CPC ...
H01F 38/14 (2013.01); B60L 11/182 (2013.01); B60L 11/1833 (2013.01); H02J 5/005 (2013.01); H02J 7/025 (2013.01); B60L 2210/10 (2013.01); B60L 2210/30 (2013.01); B60L 2210/40 (2013.01); B60L 2240/36 (2013.01); B60L 2240/80 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/7241 (2013.01); Y02T 90/12 (2013.01); Y02T 90/121 (2013.01); Y02T 90/122 (2013.01); Y02T 90/125 (2013.01); Y02T 90/127 (2013.01); Y02T 90/14 (2013.01);
Abstract

A wireless power transmission method transmits power from a first resonance antenna to a second resonance antenna in a noncontact manner through resonance of a magnetic field. The first resonance antenna is a resonance antenna of a power transmitting device, the second resonance antenna is a resonance antenna of a power receiving device. The wireless power transmission method includes setting a first transmission efficiency between the first resonance antenna and the second resonance antenna by changing a frequency of supply power of the power transmitting device. Power transmitted from the first resonance antenna to the second resonance antenna is gradually increased. A resonance frequency is changed by changing an induction coefficient or electrostatic capacity of the second resonance antenna to change the transmission efficiency between the first and second resonance antenna to a second transmission efficiency smaller than the first transmission efficiency, thereby matching received power to required power.

Find Patent Forward Citations

Hirosawa, Atsushi. (2016). Wireless power transmission method (U.S. Patent No. 9490064). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9490064

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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