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:
Sep. 01, 2026
Filed:
Aug. 25, 2023
Seiko Epson Corporation, Tokyo, JP;
Masaya Ninomiya, Matsumoto, JP;
Katsumi Okina, Fujimi-machi, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A circuit device includes: a current source circuit; a first charging circuit; a second charging circuit; and a control circuit. The control circuit controls, when a current setting value is in a first current range, supply of a first charging current from the first charging circuit to a charging node. The control circuit controls, when the current setting value is in a second current range on a current side higher than the first current range, supply of a second charging current from the second charging circuit to the charging node. The control circuit sets both the first charging current and the second charging current to a non-supply state during a switching period between the first current mode and the second current mode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile