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.

Date of Patent:
Jun. 26, 2012

Filed:

Dec. 06, 2010
Applicants:

Manabu Fujimura, Chiba, JP;

Minoru Ariyama, Chiba, JP;

Daisuke Muraoka, Chiba, JP;

Tomoki Hikichi, Chiba, JP;

Inventors:

Manabu Fujimura, Chiba, JP;

Minoru Ariyama, Chiba, JP;

Daisuke Muraoka, Chiba, JP;

Tomoki Hikichi, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/16 (2006.01); H03K 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a physical quantity sensor capable of improving physical quantity detection precision thereof. The physical quantity sensor includes a bridge resistance type physical quantity detection element for generating a voltage based on a bias current and a physical quantity, a current supply circuit for supplying the bias current to the physical quantity detection element, and a leakage current control circuit for causing leakage currents flowing when switches of the current supply circuit are in an off state to flow into a ground terminal.


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