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. 16, 2008
Filed:
Feb. 17, 2005
Yoshio Yoshikuwa, Tokyo, JP;
Akihiko Imagi, Tokyo, JP;
Yoshio Yoshikuwa, Tokyo, JP;
Akihiko Imagi, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A torque sensor where a first rotary shaft and a second rotary shaft are disposed on a common axial line, with the first rotary shaft and the second rotary shaft being coupled together by a torsion bar, and which detects torsional torque applied between the first rotary shaft and the second rotary shaft, the torque sensor including: magnetic field generating means that generates a magnetic field in the radial direction around the common axial line; magnetic field varying means that varies, in response to the relative rotation between the first rotary shaft and the second rotary shaft, the direction and size of detected magnetic flux flowing along the common axial line from the magnetic field generating means; and a magnetic sensor that detects the detected magnetic flux, wherein the magnetic sensor generates an output signal whose polarity changes in response to the direction of the detected magnetic flux and whose size changes in response to the size of the detected magnetic flux.