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:
May. 05, 2026
Filed:
Jan. 07, 2025
Denso Corporation, Kariya-city, JP;
Hayato Sumiya, Kariya-city, JP;
Eisuke Takahashi, Kariya-city, JP;
Nobuhisa Yamaguchi, Kariya-city, JP;
Kazuyoshi Obayashi, Kariya-city, JP;
Shimpei Takita, Kariya-city, JP;
Koji Mazaki, Kariya-city, JP;
Mitsuru Shibanuma, Kariya-city, JP;
Masaki Kanesaki, Kariya-city, JP;
Takuya Kiguchi, Kariya-city, JP;
Kazuhiro Uda, Kariya-city, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A contactless power feeding apparatus includes a plurality of primary coils mounted on a road and a power feed controller which uses a portion of the primary coils as a power transmitting coil to achieve delivery of electrical power from the power transmitting coil to a secondary coil mounted in a vehicle. The power feed controller uses a selected primary coil that is one of the primary coils other than the power transmitting coil to decrease a leakage of magnetic flux arising from excitation of the power transmitting coil. Instead of the selected primary coil, the secondary coil may be used to reduce the leakage of magnetic flux.