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:
May. 03, 2022
Filed:
Feb. 04, 2021
Hitachi Metals, Ltd., Tokyo, JP;
Kazuhiko Tomita, Tokyo, JP;
HITACHI METALS, LTD., Tokyo, JP;
Abstract
A rotation detection device includes a sensor unit including plural magnetic sensors and a housing portion covering the magnetic sensors together. The magnetic sensors each include a plate-shaped detection portion including a magnetic detection element to detect a magnetic field from a detection target member and connection terminals extending out of the detection portion. The magnetic sensors are arranged such that the detection portions are aligned in a plate thickness direction thereof. The magnetic detection element is configured to detect a magnetic field in a direction perpendicular to the plate thickness direction. The sensor unit is positioned such that fore-end portions of the detection portions of the magnetic sensors face toward an axial end face of the detection target member, the fore-end portions being end portions located opposite to the side where the connection terminals extend out.