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:
Jun. 20, 2023
Filed:
Jul. 20, 2021
Hitachi Metals, Ltd., Tokyo, JP;
Kazuhiko Tomita, Tokyo, JP;
PROTERIAL, LTD., Tokyo, JP;
Abstract
A rotation detection device includes a detected member being mounted to a rotating member and being configured to rotate integrally with the rotating member, and a sensor section being arranged to face the detected member, in which the sensor section includes two magnetic sensors, each of which includes a detection section having a magnetism detection element for detecting a magnetic field from the detected member, the two detection sections of the two magnetic sensors being arranged side-by side along a rotational axis line direction, and a housing portion comprising a resin mold provided to collectively cover the two magnetic sensors and having a facing surface facing the detected member. The two detection sections of the two magnetic sensors are separated each other. A minimum distance between the two detection sections of the two magnetic sensors is 0.05 mm or more and 2.00 mm or less. The resin mold enters into a space between the two detection sections of the two magnetic sensors.