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:
Mar. 15, 2005
Filed:
Nov. 13, 2002
Akitoshi Mizutani, Okazaki, JP;
Kenji Takeda, Okazaki, JP;
Masao Tokunaga, Gamagori, JP;
Tsutomu Nakamura, Kariya, JP;
Keiichi Yasuda, Ogaki, JP;
Kimio Uchida, Kariya, JP;
Hiroshi Takeyama, Obu, JP;
Tetsuo Hariu, Kariya, JP;
Akitoshi Mizutani, Okazaki, JP;
Kenji Takeda, Okazaki, JP;
Masao Tokunaga, Gamagori, JP;
Tsutomu Nakamura, Kariya, JP;
Keiichi Yasuda, Ogaki, JP;
Kimio Uchida, Kariya, JP;
Hiroshi Takeyama, Obu, JP;
Tetsuo Hariu, Kariya, JP;
Nippon Soken, Inc., , JP;
Denso Corporation, , JP;
Abstract
A displacement sensor precisely detects displacement of a moving body in a rectilinear movement direction even if the moving body rotates. The sensor includes a detector and a magnet. The cross sectional area of the permanent magnet in a plane perpendicular to an axis, which extends in the rectilinear movement direction, varies in the direction of movement. The permanent magnet is magnetized in the rectilinear movement direction. The detector is located so that magnetic flux passes through a detection face of the detector substantially perpendicularly.