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. 08, 2009
Filed:
Sep. 25, 2006
Applicants:
Song Ouyang, Hitachi, JP;
Yukio Ikeda, Hitachi, JP;
Kouichi Sato, Hitachi, JP;
Inventors:
Assignee:
Hitachi Cable, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A magnetostrictive torque sensor having: a rotating shaft to rotate around a center axis, the rotating shaft having magnetostrictive characteristics; and a cylindrical magnetic core disposed at a predetermined distance on an outer periphery of the rotating shaft, the cylindrical magnetic core having a detection coil disposed on an inner periphery thereof to detect a torque applied to the rotating shaft. The detection coil is formed with a coil assembly to form a bridged circuit, and the coil assembly is formed with a flexible substrate coil disposed on a whole inner periphery of the magnetic core.