Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nobukazu Ikoma0
Takeya Miyashita0
Akihiro Muroguchi0
Date of Patent
June 24, 2008
0Patent Application Number
108079850
Date Filed
March 24, 2004
0Patent Primary Examiner
Patent abstract
A protective cover of a gas sensor includes an inner protective cover which covers at least an end portion of a sensor element, an outer protective cover which covers the inner protective cover, and an intermediate protective cover which is installed between the inner protective cover and the outer protective cover. A1/A2≧1 provided that A1 represents a total opening area of the inner gas inlet holes provided for the inner protective cover, and A2 represents a total opening area of the outer gas inlet holes provided for the outer protective cover.
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