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:
Nov. 08, 2011
Filed:
Apr. 04, 2007
Katsuyoshi Takano, Takasaki, JP;
Shunya Yamamoto, Takasaki, JP;
Aichi Inouye, Takasaki, JP;
Masaki Sugimoto, Takasaki, JP;
Masahito Yoshikawa, Takasaki, JP;
Katsuyoshi Takano, Takasaki, JP;
Shunya Yamamoto, Takasaki, JP;
Aichi Inouye, Takasaki, JP;
Masaki Sugimoto, Takasaki, JP;
Masahito Yoshikawa, Takasaki, JP;
Japan Atomic Energy Agency, Ibaraki, JP;
Abstract
A hydrogen gas detecting material, which changes in light absorption characteristics when exposed to an atmosphere containing hydrogen, and the coating method are characterized in that (1) the principal component of the hydrogen gas detecting material is tungsten oxide, (2) palladium is deposited on the surface of the tungsten oxide, (3) the tungsten oxide is coated on a substrate by a sputtering method involving a controlled oxygen pressure, and (4) the temperature of the substrate during coating with the tungsten oxide is room temperature (20° C.).