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:
Jun. 26, 2012
Filed:
Dec. 28, 2007
Applicant:
Katsuhiko Fukui, Iwate, JP;
Inventor:
Katsuhiko Fukui, Iwate, JP;
Assignee:
Mikuni Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hydrogen sensor () is provided with a substrate (), a detection film () formed on the substrate (), and a hydrogen permeable protective film () formed on the detection film (). The detection film () is composed of a first ceramic () and rare-earth metal particles () dispersed in the first ceramic (). The protective film () is composed of a second ceramic () and hydrogen permeable metal particles () dispersed in the second ceramic (). Preferably, the thickness of the detection film () is 5 to 1,000 nm, and the thickness of the hydrogen permeable protective film () is 5 to 40 nm.