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.:
Date of Patent:
Aug. 25, 2009
Filed:
Oct. 19, 2005
Noriya Izu, Aichi, JP;
Norimitsu Murayama, Aichi, JP;
Woosuck Shin, Aichi, JP;
Ichiro Matsubara, Aichi, JP;
Noriya Izu, Aichi, JP;
Norimitsu Murayama, Aichi, JP;
Woosuck Shin, Aichi, JP;
Ichiro Matsubara, Aichi, JP;
Abstract
A resistance-type oxygen sensor which is provided to be used mainly for measuring the oxygen gas partial pressure of automobile exhaust gas, and which has a short output response time in response to changes in oxygen partial pressure, low resistivity of the oxide semiconductor, and low temperature dependence of the resistivity. In a resistance-type oxygen sensor, in which the oxygen gas detection part comprises an oxide semiconductor, the oxide semiconductor is an oxide comprising cerium ions and hafnium ions, the amount of substance of cerium ions as a percentage of the amount of substance of positive ions is 60 mol % or more, the amount of substance of hafnium ions as a percentage of the amount of substance of positive ions is 3 to 30 mol %, and the hafnium ions are an oxide in solid solution in the parent phase.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile