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:
Nov. 08, 1994
Filed:
Jun. 04, 1991
Junichi Tada, Kanagawa, JP;
Takamoto Yoshioka, Kanagawa, JP;
Sony Magnescale, Inc., Tokyo, JP;
Abstract
A position detecting apparatus is comprised of a magnetic scale formed by sequentially disposing magnets at a lattice pitch .lambda., and a magnetic sensor disposed in an opposing relation to the magnetic scale so as to become relatively movable to each other, wherein the magnetic sensor includes a plurality of magnetic sensor elements, each having first and second magnetic reluctance elements, the first and second magnetic reluctance elements are spaced apart from each other by 1/6.lambda. in the direction in which the magnets are disposed and connected in series, and the first and second magnetic reluctance elements are disposed so as not to overlap each other as seen from the direction parallel to the direction in which the magnets are disposed.