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:
Jul. 21, 2026
Filed:
Nov. 25, 2022
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Koyo Kaiwa, Nagaokakyo, JP;
Tatsuya Hosotani, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Abstract
A device includes a power receiving resonant circuit, a rectifier circuit, a voltage conversion circuit, and a charge control circuit that charges an electric storage device. The charge control circuit starts charging the electric storage device when a received voltage is greater than or equal to a first received voltage value, decreases a set value of a charging current for the electric storage device when a charging voltage is less than a predetermined charging voltage value, increases the set value of the charging current for the electric storage device when the received voltage is greater than or equal to a second received voltage value higher than a predetermined charging voltage value, and maintains the set value of the charging current when the charging voltage is greater than or equal to the predetermined charging voltage value and the received voltage is less than the second received voltage value.