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. 24, 2024
Filed:
Jan. 13, 2021
Tdk Corporation, Tokyo, JP;
Yongfu Cai, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A position detection unit includes a magnetic sensor, a first magnetic field generator, and a second magnetic field generator. The first magnetic field generator includes a first magnet and generates a first magnetic field. The first magnet includes a first magnetic material and has a first shape. The second magnetic field generator includes a second magnet, generates a second magnetic field, and is movable along a first direction with respect to the first magnetic field generator and the magnetic sensor. The second magnet includes a second magnetic material and has a second shape. The magnetic sensor generates a detection signal corresponding to the direction of a magnetic field of interest, and detects a positional change of the second magnetic field generator. The magnetic field of interest is a composite of the first magnetic field along a first plane and the second magnetic field along the first plane.