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:
May. 13, 2025
Filed:
Oct. 16, 2020
Semitec Corporation, Tokyo, JP;
Toshiyuki Nojiri, Tokyo, JP;
Dezhi Cheng, Tokyo, JP;
SEMITEC Corporation, Tokyo, JP;
Abstract
Provided are a gas detection device, a gas detection method, and a device including the gas detection device that are capable of enhancing responsiveness, gas detection sensitivity, and gas detection accuracy. A gas detection device () with a thermal-conductivity-type gas sensor () includes a connection circuit including a thermistor () having at least a pair of electrode parts () and a resistor () connected to the thermistor (); a power supply circuit (Ep) for applying a constant voltage to the connection circuit and putting the thermistor () in a thermal runaway state by supplying excess power to the thermistor (); and a voltage detection unit for detecting a voltage between the electrodes of the thermistor () in the connection circuit.