Oxidizing gas sensor and production method thereof
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United States of America Patent
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Aug 19, 2008
Grant Date -
Sep 7, 2006
app pub date -
Feb 23, 2006
filing date -
Feb 24, 2005
priority date (Note) -
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Abstract
There is provided an oxidizing gas sensor that includes an insulating substrate, a gas sensing layer laminated on the insulating substrate and substantially made of tin oxide so as to make resistance changes in response to concentration variations in oxidizing gas and a plurality of catalyst grains applied to a surface of the gas sensing layer and substantially made of gold, wherein 20% or more of the catalyst grains have an aspect ratio of 2.0 or greater when viewed at from the surface of the gas sensing layer.
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