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:
Feb. 13, 2024
Filed:
Jul. 28, 2022
Tdk Corporation, Tokyo, JP;
Takahiro Moriya, Tokyo, JP;
Toshihiko Oyama, Tokyo, JP;
Keiji Suzuki, Tokyo, JP;
Toshio Ishikawara, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A stroke sensor that allows adjustment of the magnetic field distribution without changing the positions of the magnets is provided. Stroke sensorhas magnetsA,B, and sensorA that detects a magnetic field that is generated by magnetsA,B. MagnetsA,B are movable relative to sensorA in first direction X. MagnetA has surfaceA that faces sensorA in second direction Z, magnetB has surfaceB that faces sensorA in second direction Z, and surfaceA and surfaceB have different polarities. A position in first direction X at which magnetic field intensity in second direction Z is zero is positioned between reference axis RA and magnetB. Reference axis RA is parallel to second direction Z and passes through middle point MP of minimum section S that includes magnetsA,B in first direction X.