A/F sensor element and method of manufacturing the same

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United States of America Patent

PATENT NO 9804119
SERIAL NO

15418794

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An A/F sensor element includes a substrate made of an insulating ceramic having a bottomed cylindrical shape, an electrolyte part made of a solid electrolyte, and a pair of electrode portions. The electrolyte part is embedded in at least a portion of the side wall of the substrate. The A/F sensor element is used by inserting a rod-like heater in the substrate having the bottomed cylindrical shape. The substrate is formed of the insulating ceramic at a contact position to the heater within the substrate. In a manufacturing of the substrate, a molded body having a space for a forming position of the electrolyte part is formed by using substrate-forming clay, and then the molded body is molded by filling electrolyte-forming clay into the space.

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Patent Owner(s)

  • DENSO CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Namitsugu Yokkaichi, JP 31 188
Kajiyama, Norikazu Chiryu, JP 11 35
Saitou, Masami Nagoya, JP 9 23

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