US Patent 7258772 Oxygen sensor and method of manufacturing same
Patent 7258772 was granted and assigned to Hitachi (Japanese train) on August, 2007 by the United States Patent and Trademark Office.
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Patent abstract
In an oxygen sensor that measures a limiting current of when a voltage is applied between pumping electrodes, and also performs a rich/lean judgment based on an electromotive force generated between one of the pumping electrodes and a reference electrode, an oxygen supply voltage for supplying oxygen to the reference electrode is applied, and the reference electrode is covered with a dense layer.
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Current Assignee
Patent Jurisdiction
Patent Number
72587720
Date of Patent
August 21, 2007
0Patent Application Number
104315340
Date Filed
May 8, 2003
0Patent Primary Examiner
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Official Website
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US Patent 07258772 Oxygen sensor and method of manufacturing same US Patent 7258772 Oxygen sensor and method of manufacturing same
Infobox
Patent Number
0725877200
Patent Number
725877200
Edits on 27 Apr, 2023
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
072587720
Date of Patent
August 21, 2007
0Patent Application Number
104315340
Date Filed
May 8, 2003
0Official Website
Patent Primary Examiner
Edits on 22 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
072587720
Date of Patent
August 21, 2007
0Patent Application Number
104315340
Date Filed
May 8, 2003
0Official Website
Patent Primary Examiner
Edits on 16 Jun, 2022
Golden AI
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US Patent 07258772 Oxygen sensor and method of manufacturing same
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07258772
Date of patent
August 21, 2007
Patent application number
10431534
Date Filed
May 8, 2003
Patent primary examiner
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