Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
September 6, 2022
Patent Application Number
16254775
Date Filed
January 23, 2019
Patent Citations
Patent Primary Examiner
A power transmission apparatus includes a first power transmission coil having a planar shape, and a second power transmission coil having a planar shape, arranged outside the first power transmission coil. The second power transmission coil has an opening with a diameter greater than that of an opening of the first power transmission coil in a direction of a line of intersection on which a plane including a coil plane of the first power transmission coil and a plane including a coil plane of the second power transmission coil intersect with each other. The power transmission apparatus transmits power to a power reception coil without contact.
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