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:
Jul. 14, 2009
Filed:
Sep. 29, 2006
Shinji Hatanaka, Okazaki, JP;
Kenji Takeda, Okazaki, JP;
Tsutomu Nakamura, Kariya, JP;
Osamu Shimomura, Okazaki, JP;
Takashi Kawashima, Nagoya, JP;
Koichiro Matsumoto, Kariya, JP;
Shinji Hatanaka, Okazaki, JP;
Kenji Takeda, Okazaki, JP;
Tsutomu Nakamura, Kariya, JP;
Osamu Shimomura, Okazaki, JP;
Takashi Kawashima, Nagoya, JP;
Koichiro Matsumoto, Kariya, JP;
Denso Corporation, Kariya, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
A rotation angle detecting device that detects a rotation angle of a rotating object includes a permanent magnet that generates magnetic fields in response to rotation of the rotating object, a magnetic sensor, a first yoke and a second yoke. The magnetic sensor includes a pair of close integrated magnetic sensing elements, such as hall elements, disposed at a position around the permanent magnet so that one of the sensing elements senses magnetic field at a phase different from the other. The first yoke and the second yoke forms two magnetic paths crossing each other at the magnetic sensor.