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:
Apr. 09, 2024
Filed:
Jun. 04, 2020
Nidec Sankyo Corporation, Nagano, JP;
Hirotaka Sakamaki, Nagano, JP;
NIDEC SANKYO CORPORATION, Nagano, JP;
Abstract
In a card reader, an interfering magnetic field generation mechanismincludes a core part, a core part, and a core part, each of which is formed of soft magnetic material in a straight line, a coilthat is wound around the core part, a coilthat is connected to the coilin series and is wound around the core part, a coilthat is wound around the core part, a first drive circuit that supplies alternating current to the coilsand, and a second drive circuit that supplies alternating current to the coil. The core partis disposed between the core partand the core part. The core partis formed independently of the core partsand, and is separated from the core partsand