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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.:

US 9234738 B1

PDFFull Text
Date of Patent:
Jan. 12, 2016

Filed:

Nov. 18, 2010

Rotation-angle detection device

Applicants:

Takumi Asano, Tokyo, JP;

Takeshi Musha, Tokyo, JP;

Hiroshi Nishizawa, Tokyo, JP;

Takashi Okamuro, Tokyo, JP;

Noriyasu Hasegawa, Tokyo, JP;

Inventors:

Takumi Asano, Tokyo, JP;

Takeshi Musha, Tokyo, JP;

Hiroshi Nishizawa, Tokyo, JP;

Takashi Okamuro, Tokyo, JP;

Noriyasu Hasegawa, Tokyo, JP;

Assignee:

Mitsubishi Electric Corporation, Tokyo, JP;

Attorneys:

Sughrue Mion, PLLC

Richard C. Turner

Primary Examiner:

Huy Q Phan

Assistant Examiner:

Adam Clarke

Int. Cl.
CPC ...
G01B 7/30 (2006.01); G01D 5/14 (2006.01); G01D 5/245 (2006.01);
U.S. Cl.
CPC ...
G01B 7/30 (2013.01); G01D 5/145 (2013.01); G01D 5/2451 (2013.01);
Abstract

A detection track includes a first detection element group that includes a plurality of first magnetic resistance elements arranged at a pitch λ/(2n) when an order to cancel target harmonic components among a plurality of harmonic components superimposed on a fundamental component of a detection signal for multi-pole magnetic pattern is assumed as n, and a second detection element group that includes a plurality of second magnetic resistance elements arranged at the pitch λ/(2n), a plurality of first dummy magnetic resistance elements arranged among the first magnetic resistance elements, and a plurality of second dummy magnetic resistance elements arranged among the second magnetic resistance elements. Pitches between adjacent magnetic resistance elements among the first magnetic resistance elements and the first dummy magnetic resistance element are equivalent to one another, and pitches between adjacent magnetic resistance elements among the second magnetic resistance elements and the second dummy magnetic resistance element are equivalent to one another.

Find Patent Forward Citations

Asano, Takumi. (2016). Rotation-angle detection device (U.S. Patent No. 9234738). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9234738

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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