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:
Feb. 02, 2010

Filed:

Dec. 21, 2004
Applicants:

Shoichi Sakai, Gunma, JP;

Futoshi Ichiyanagi, Gunma, JP;

Junji Onozuka, Gunma, JP;

Goji Matsumoto, Gunma, JP;

Inventors:

Shoichi Sakai, Gunma, JP;

Futoshi Ichiyanagi, Gunma, JP;

Junji Onozuka, Gunma, JP;

Goji Matsumoto, Gunma, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

An oxygen concentration detecting element including a base member made of an electrically insulating material, a heater disposed on an outer surface of the base member, the heater being adapted to generate heat upon being energized, and an oxygen detecting unit disposed in an offset position on the outer surface of the base member in which the oxygen detecting unit is prevented from overlapping with the heater, the oxygen detecting unit including a solid electrolyte layer and a pair of electrodes between which the solid electrolyte layer is disposed.


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