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:
Dec. 16, 2025
Filed:
Feb. 26, 2024
Kyocera Document Solutions Inc., Osaka, JP;
Tuan Manh Hoang, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
A motor drive device includes a substrate, a motor drive portion, a feed pattern, a coil pattern, and a detection circuit. The feed pattern is formed on a first surface of the substrate. The coil pattern is formed on a second surface of the substrate and includes an overlapping portion formed in a region overlapping with the feed pattern and an adjacent portion formed in a region adjacent to the feed pattern. The detection circuit detects a magnitude of an induction current that flows in the coil pattern and outputs a detection signal. The detection circuit includes a current-voltage conversion circuit and an amplifier circuit.