Ceramic heater, sensor element, and gas sensor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11768169
SERIAL NO

16686812

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Abstract

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A heater section includes a plate-like ceramic body (a first substrate layer 1, a second substrate layer 2, and a third substrate layer 3) having a longitudinal direction (front-rear direction) and a short-length direction (left-right direction), and a heater 72 disposed within the plate-like ceramic body and including a lead section 79 and a heating section 76 connected to the lead section 79. The heating section 76 includes a straight portion 78 extending along the longitudinal direction, and a lead side curved portion 77b connected to one of the ends of the straight portion 78 closer to the lead section 79. The lead side curved portion 77b has a lower resistance per unit length than the straight portion 78 at one or more temperatures in the range of 700° C. to 900° C.

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Patent Owner(s)

Patent OwnerAddress
NGK INSULATORS LTDJAPAN'S AICHI AICHI

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Murase, Takao Konan, JP 35 411
Watanabe, Yusuke Nagoya, JP 256 983
Yasui, Masashi Nagoya, JP 14 11

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