- Patent Title: Power transmission device for wirelessly transmitting electric power to power reception device, control method for power transmission device, and recording medium
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Application No.: US16014929Application Date: 2018-06-21
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Publication No.: US10541568B2Publication Date: 2020-01-21
- Inventor: Nobuhiko Tanaka
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2017-126237 20170628
- Main IPC: H02J50/80
- IPC: H02J50/80 ; H02J7/02 ; H02J7/00

Abstract:
A power transmission device includes a power transmission unit configured to transmit electric power to a plurality of power reception devices, a communication unit configured to exchange charging information with the plurality of power reception devices, a determination unit configured to determine based on the charging information, for each of the plurality of power reception devices, whether the power reception device is capable of limiting power reception, a detection unit configured to detect based on the charging information, for each of the plurality of power reception devices, completion of charging of the power reception device, and a control unit configured to perform control so that power transmission is stopped in a case where the detection unit detects that at least one power reception device incapable of limiting power reception has completed charging.
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