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. 02, 2005
Filed:
Feb. 06, 2002
Masashi Ando, Nishikasugai-gun, JP;
Noboru Ishida, Kagamigahara, JP;
Satoshi Sugaya, Inuyama, JP;
Takafumi Oshima, Nagoya, JP;
Norihiko Nadanami, Kasugai, JP;
Takaki Otsuka, Komaki, JP;
Yoshikuni Sato, Nagoya, JP;
Tatsuo Okumura, Hashima-gun, JP;
Yasuhisa Kuzuya, Ichinomiya, JP;
Masashi Ando, Nishikasugai-gun, JP;
Noboru Ishida, Kagamigahara, JP;
Satoshi Sugaya, Inuyama, JP;
Takafumi Oshima, Nagoya, JP;
Norihiko Nadanami, Kasugai, JP;
Takaki Otsuka, Komaki, JP;
Yoshikuni Sato, Nagoya, JP;
Tatsuo Okumura, Hashima-gun, JP;
Yasuhisa Kuzuya, Ichinomiya, JP;
NGK Spark Plug Co, Ltd., Aichi, JP;
Abstract
A method for detecting the concentration of a specific component in gas discharged from an internal combustion engine, which includes detecting the concentration of the specific component under certain driving conditions to determine a zero point, which indicates a zero concentration of the specific component, of the detection output; calibrating the detection output of the gas sensor based on the determined zero point; and detecting the concentration of the specific component in exhaust gas based on the calibrated detection output.