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:
Dec. 26, 2006
Filed:
Jan. 28, 2005
Tsutomu Kamizono, Nagoya, JP;
Koji Wato, Obu, JP;
Masahiro Taguchi, Hazu-gun, JP;
Shinji Ando, Nakata-gun, JP;
Shigetoshi Fukaya, Toyota, JP;
Kenji Takeda, Okazaki, JP;
Tsutomu Kamizono, Nagoya, JP;
Koji Wato, Obu, JP;
Masahiro Taguchi, Hazu-gun, JP;
Shinji Ando, Nakata-gun, JP;
Shigetoshi Fukaya, Toyota, JP;
Kenji Takeda, Okazaki, JP;
Denso Corporation, Kariya, JP;
Abstract
A rotation angle detecting device includes a columnar permanent magnet that has a generally ring-shaped cross-section and a pair of magnetic poles, a pair of semi-cylindrical yokes disposed in a circumferential direction opposite the permanent magnet, a rotary shaft fixed to the permanent magnet at a shifted rotation axis and a magnetic sensor disposed in one of circumferential gaps between the yokes. The rotation axis and the magnetic poles are arranged so that the magnetic flux density becomes maximum at portions of the yoke less than 90 degrees angled from the circumferential gap in which the magnetic sensor is disposed.