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. 19, 2011
Filed:
Mar. 27, 2008
Hiroshi Koda, Sanda, JP;
Kiyonori Ono, Sanda, JP;
Hiroshi Koda, Sanda, JP;
Kiyonori Ono, Sanda, JP;
FIS Inc., Itami-shi, JP;
Abstract
The hydrogen gas sensor is a catalytic combustion hydrogen gas sensor with a detection element, and is characterized by comprising a measuring circuit configured to selectively provide a normal voltage mode for applying a normal voltage to the detection elementand a high voltage mode for applying a high voltage higher than said normal voltage to said detection element Thereby, upon energization of the hydrogen gas sensor, the detection elementcan be first applied the high voltage to be rapidly heated to raise a temperature of the detection elementimmediately. And then, the detection elementcan be applied the normal voltage to be heated to be kept at a predetermined temperature at which the hydrogen gas is detected.