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:
Sep. 23, 2008
Filed:
May. 02, 2007
Masashi Saito, Hitachinaka, JP;
Youichi Nakano, Hitachinaka, JP;
Hayato Sugawara, Hitachinaka, JP;
Hiroaki Saeki, Hitachinaka, JP;
Masashi Saito, Hitachinaka, JP;
Youichi Nakano, Hitachinaka, JP;
Hayato Sugawara, Hitachinaka, JP;
Hiroaki Saeki, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Car Engineering Co., Ltd., Hitachinaka-shi, JP;
Abstract
A sensor and a control circuit are provided externally of a gear cover. A shift controller is operated by an electric actuator and a motor driven control module similar thereto. A rotating position detection sensor is thereby provided for a switching device without combination of a circuit and a sensor by oil or metal powder of a gear mechanism portion. The circuit includes a signal processing circuit that approximates an MR element output signal relative to the rotational angle of a body in which a magnet is mounted with a multi-function expressed as a three-dimensional formula.