Title:
ガスセンサ素子
Document Type and Number:
Japanese Patent JP4855756
Kind Code:
B2
Abstract:
A gas sensor element is designed to determine the concentration of a selected component contained in gas and includes a sensor cell. The sensor cell is equipped with two electrodes one of which is exposed to a gas chamber into which the gas flows from outside the gas sensor element. The electrodes connect with leads extending to external terminals exposed to the atmospheric air. One of the leads connecting with one of the electrodes exposed to the gas chamber is made of material which includes a mixture of a metallic composition and a ceramic composition and contains 7% or less by weight of the ceramic composition based on a total weight of the mixture. This results in a decrease in porosity of the lead, which reduces the intrusion of oxygen gas into the gas chamber, thereby enhancing the accuracy in determining the concentration of the selected component of the gas.
Inventors:
Keigo Mizutani
Makino Taisuke
Kazunori Suzuki
Makino Taisuke
Kazunori Suzuki
Application Number:
JP2005298757A
Publication Date:
January 18, 2012
Filing Date:
October 13, 2005
Export Citation:
Assignee:
株式会社デンソー
株式会社日本自動車部品総合研究所
株式会社日本自動車部品総合研究所
International Classes:
G01N27/419
Domestic Patent References:
| JP2004037417A | ||||
| JP2003014690A | ||||
| JP2002005883A | ||||
| JP2002131278A | ||||
| JP10160704A | ||||
| JP10318979A | ||||
| JP2004093199A | ||||
| JP2004294455A | ||||
| JP2004245680A |
Attorney, Agent or Firm:
Patent Business Corporation Aichi International Patent Office
Yoshiyasu Takahashi
Tamiwa Iwakura
Takahashi Shoki
Yoshiyasu Takahashi
Tamiwa Iwakura
Takahashi Shoki