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:
Mar. 19, 2024
Filed:
Jul. 23, 2019
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Satoru Fujii, Osaka, JP;
Zhiqiang Wei, Osaka, JP;
Kazunari Homma, Kyoto, JP;
Shinichi Yoneda, Kyoto, JP;
Yasuhisa Naito, Ibaraki, JP;
Hisashi Shima, Ibaraki, JP;
Hiroyuki Akinaga, Ibaraki, JP;
NUVOTON TECHNOLOGY CORPORATION JAPAN, Kyoto, JP;
Abstract
A gas sensor includes: a gas-sensitive body layer disposed above a substrate and including a metal oxide layer; a first electrode on the gas-sensitive body layer; and a second electrode on the gas-sensitive body layer, being apart from the first electrode by a gap. The gas-sensitive body layer has a resistance change characteristic that reversibly transitions to a high-resistance state and a low-resistance state on basis of a voltage applied across the first electrode and the second electrode. At least a part of the gas-sensitive body layer is exposed to the gap. The gas-sensitive body layer has a resistance that decreases when gas containing a hydrogen atom is in contact with the second electrode.