The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2011
Filed:
Jan. 16, 2008
Applicants:
Yoshihiro Nakano, Komaki, JP;
Shinichi Nakagawa, Konan-ku, JP;
Yuichi Koyama, Niwa-gun, JP;
Takio Kojima, Ichinomiya, JP;
Inventors:
Yoshihiro Nakano, Komaki, JP;
Shinichi Nakagawa, Konan-ku, JP;
Yuichi Koyama, Niwa-gun, JP;
Takio Kojima, Ichinomiya, JP;
Assignee:
NGK Spark Plug Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/26 (2006.01); G01N 27/417 (2006.01); B05D 5/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a gas sensor, including a gas sensing film formed of an oxide semiconductor material and a gas-permeable protection layer formed of oxide particles and arranged on the gas sensing film. The oxide particles of the protection layer have an average particle size of 500 nm or smaller.