Gas sensor element

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United States of America Patent

PATENT NO 10837939
APP PUB NO 20190242848A1
SERIAL NO

16256680

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Abstract

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The present disclosure provides a gas sensor element comprising a porous protective layer with improved water repellency upon continuously water pouring, which is a gas sensor element comprising:

    a detection portion; anda porous protective layer formed around the detection portion, whereinthe porous protective layer is formed from an aggregate containing alumina and a coating material containing silica, andin the porous protective layer, the weight concentration x % by weight of the coating material with respect to the total weight of the aggregate and the coating material, and the porosity y %, satisfy the following formula (1):y≤0.0058x2−1.2666x+68  (1), andin the porous protective layer, the pore volume of pores having a pore diameter of 100 nm or less is 0.02 mL/g or less.

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Patent Owner(s)

Patent OwnerAddress
TOYOTA JIDOSHA KABUSHIKI KAISHA1 TOYOTA-CHO TOYOTA-SHI AICHI-KEN 471-8571
DENSO CORPORATION1-1 SHOWA-CHO KARIYA-SHI AICHI 4488661 ?4488661

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirata, Yasushi Toyota, JP 35 312
Kondo, Haruki Okazaki, JP 4 11
Miyake, Yoshiharu Miyoshi, JP 18 96
Nishijima, Hiroki Nisshin, JP 28 153
Sugiura, Kei Kariya, JP 16 27
Suzuki, Hirofumi Kariya, JP 77 907
Takeuchi, Toru Kariya, JP 52 508

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