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:
Jan. 22, 2019
Filed:
Dec. 22, 2017
Yamaha Hatsudoki Kabushiki Kaisha, Iwata-shi, Shizuoka, JP;
Satomi Ishikawa, Iwata, JP;
Hiroshi Matsumoto, Iwata, JP;
YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata-Shi, Shizuoka, JP;
Abstract
A magnetostrictive sensor, including a tubular or columnar substrate extending along an axis, and a magnetostrictive portion disposed on an outer peripheral surface of the substrate and including a plurality of magnetostrictive lines. The plurality of magnetostrictive lines include adjacent first and second magnetostrictive lines that extend along an extension direction, and that are disposed on the outer peripheral surface of the substrate via respectively first and second contact areas. In a cross sectional view of the magnetostrictive portion taken orthogonally to the extension direction, a first length, which is a width of a widest portion of the first magnetostrictive line in a width direction parallel to the outer peripheral surface of the substrate, is larger than a width of the first contact area in the width direction, and than a shortest distance between the first and second contact areas in the width direction.