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:
May. 10, 2011
Filed:
Nov. 26, 2008
Yoshihiro Oniwa, Utsunomiya, JP;
Takashi Miyoshi, Shioya-gun, JP;
Koichi Fujita, Utsunomiya, JP;
Atsuhiko Yoneda, Utsunomiya, JP;
Yasuo Shimizu, Shimotsuke, JP;
Yoshihiro Oniwa, Utsunomiya, JP;
Takashi Miyoshi, Shioya-gun, JP;
Koichi Fujita, Utsunomiya, JP;
Atsuhiko Yoneda, Utsunomiya, JP;
Yasuo Shimizu, Shimotsuke, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A magnetostrictive torque sensor comprising: a magnetostrictive film provided on a ferromagnetic shaft; a bias magnetization device which applies a bias magnetic field to the shaft to magnetize the shaft; and a detection device which detects a change in magnetism of the magnetostrictive film, wherein: a torque acting on the shaft calculated based on the detection results of the detection device; and the bias magnetization device applies a bias magnetic field to the shaft at a predetermined timing.