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:
Apr. 08, 2014
Filed:
Feb. 27, 2008
Munekatsu Shimada, Hachioji, JP;
Hiroshi Sakurai, Chigasaki, JP;
Yoshio Kawashita, Kamakura, JP;
Kiyohiro Uramoto, Yokohama, JP;
Toshimitsu Matsuoka, Yokosuka, JP;
Masao Aihara, Yokosuka, JP;
Mitsuaki Fujita, Yokosuka, JP;
Masaharu Ooshima, Yokosuka, JP;
Munekatsu Shimada, Hachioji, JP;
Hiroshi Sakurai, Chigasaki, JP;
Yoshio Kawashita, Kamakura, JP;
Kiyohiro Uramoto, Yokohama, JP;
Toshimitsu Matsuoka, Yokosuka, JP;
Masao Aihara, Yokosuka, JP;
Mitsuaki Fujita, Yokosuka, JP;
Masaharu Ooshima, Yokosuka, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A magnetostrictive stress sensor () includes: a magnetic member {, ()} having a magnetostriction; a permanent magnet () adjacent to the magnetic member; a magnetic sensor (A,B) for detecting a leak magnetic flux on a side opposite to the permanent magnet with respect to the magnetic member, wherein the leak magnetic flux changes according to a stress acting on the magnetic member and the magnetic sensor detects the change of the leak magnetic flux, to thereby detect the stress acting on the magnetic member, and a direction (A,A) of the stress acting on the magnetic member is substantially orthogonal to a magnetizing direction (A) of the permanent magnet.