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:
Jul. 13, 2021
Filed:
Jan. 21, 2019
Fuji Electric Co., Ltd., Kanagawa, JP;
Osaka Gas Co., Ltd., Osaka, JP;
Naoyoshi Murata, Hino, JP;
Takuya Suzuki, Tubingen, DE;
Makoto Okamura, Hachioji, JP;
Tsuyoshi Kamioka, Nasushiobara, JP;
Hisao Ohnishi, Osaka, JP;
Atsushi Nonaka, Hyogo, JP;
FUJI ELECTRIC CO., LTD., Kanagawa, JP;
Osaka Gas Co., Ltd., Osaka, JP;
Abstract
A gas alarm device is provided, where a heating control section extends a heating period of time of a heater section if a first determination section determines that electrical characteristics of a sensing section of a gas sensor satisfy a first condition, and continues extension of the heating period of time of the heater section according to a determination result, by a second determination section, of whether or not the electrical characteristics upon lapse of extension of the heating period of time satisfy a second condition, and a gas detection section determines, according to the electrical characteristics upon lapse of extension time, that detection target gas is detected.