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. 14, 2008
Filed:
Apr. 16, 2007
Shozoh Shiraga, Osaka, JP;
Masahide Onishi, Fukui, JP;
Yasunori Tomino, Osaka, JP;
Tamotsu Ohta, Osaka, JP;
Shozoh Shiraga, Osaka, JP;
Masahide Onishi, Fukui, JP;
Yasunori Tomino, Osaka, JP;
Tamotsu Ohta, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The present invention relates to a rotation angle detector for use mainly in detecting rotation angles of a vehicle's steering shaft, with a simplified and low-cost configuration. For this purpose, a first detection head and a second detection head are disposed perpendicularly to a rotor, and a spur gear formed outside the periphery of the first detection head is allowed to engage with a face gear formed on the bottom face of the periphery of the rotor. This can provide the first detection head with a simplified configuration in which magnetic sensors are provided together with a controller on a single circuit board. The configuration enables the rotation angle detector to perform the detection reliably and cheaply.