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.

Date of Patent:
Nov. 26, 2024

Filed:

Jan. 09, 2019
Applicant:

Maxell, Ltd., Kyoto, JP;

Inventors:

Yasuo Yahagi, Tokyo, JP;

Takatoshi Shirosugi, Tokyo, JP;

Hitoshi Akiyama, Kyoto, JP;

Assignee:

MAXELL, LTD., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 50/20 (2016.01); H02J 50/40 (2016.01); H02J 50/80 (2016.01);
U.S. Cl.
CPC ...
H02J 50/80 (2016.02); H02J 7/007182 (2020.01); H02J 50/20 (2016.02); H02J 50/40 (2016.02); H02J 2310/22 (2020.01);
Abstract

A portable device comprising: an inter-device communication transceiver configured to receive, from at least one subordinate portable device that operates in accordance with control performed by the portable device, a power transfer request signal with respect to the subordinate portable device; a power transfer control circuit configured to transfer power to the subordinate portable device; a battery; and a controller configured to control an operation of the inter-device communication transceiver and an operation of the power transfer control circuit. The controller is further configured to: when the inter-device communication transceiver receives the power transfer request signal, detect a battery residual amount; and perform control for causing the power transfer control circuit and the inter-device communication transceiver to output electromagnetic waves for wireless power transfer in accordance with a detection result of the battery residual amount.


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