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:
Oct. 07, 2014
Filed:
Sep. 02, 2009
Haruhiro Tsuneta, Nagano, JP;
Keiji Osada, Nagano, JP;
Syungo Yasaki, Nagano, JP;
Tomomi Akahane, Nagano, JP;
Takehiko Akahane, Nagano, JP;
Haruhiro Tsuneta, Nagano, JP;
Keiji Osada, Nagano, JP;
Syungo Yasaki, Nagano, JP;
Nidec Sankyo Corporation, , JP;
Abstract
A magnetic type rotation detection device may include a magnet body formed with a magnetic pole pair comprised of an 'S'-pole and an 'N'-pole and provided on a rotation body, a magnetic sensing element facing the magnet body in a rotation center axial line direction of the rotation body, a partition member disposed between the magnet body and the magnetic sensing element, and a ring fixed to a face of the partition member on a side where the magnet body is located. A center of the magnetic sensing element may be located on a center axial line of the ring. The magnet body may be disposed on an inner side of the ring in a non-contact state with the ring. A center of the magnet body may be located on the center axial line of the ring.