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:
Jan. 20, 1987
Filed:
Feb. 21, 1984
Masayoshi Kaneyasu, Yokohama, JP;
Hideo Arima, Yokohama, JP;
Mitsuko Ito, Yokosuka, JP;
Shoichi Iwanaga, Yokohama, JP;
Nobuo Sato, Yokosuka, JP;
Takanobu Noro, Yokohama, JP;
Akira Ikagami, Yokohama, JP;
Tokio Isogai, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A gas detecting apparatus incorporates a number of gas detecting elements which react with a variety of gases and exhibit gas sensitivities differing from one another in dependence on the gas species. The detection patterns obtained by quantitizing the detection outputs of the gas detecting elements are compared with a plurality of standard patterns prepared previously for assumed combinations of gas species and concentrations thereof. On the basis of the standard pattern which is same or most similar to the detection pattern, the gas species is identified.