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, 2001
Filed:
Sep. 28, 1999
Applicant:
Inventors:
Masaaki Katoh, Kanagawa, JP;
Miwako Nara, Kanagawa, JP;
Yukiei Matsumoto, Kanagawa, JP;
Setsuro Ogata, Kanagawa, JP;
Assignee:
Permelec Electrode Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
C25D 3/06 ;
U.S. Cl.
CPC ...
C25D 3/06 ;
Abstract
An electrode adapted for chromium plating from trivalent chromium baths which comprises a conductive base, an electrode material layer comprising iridium oxide formed thereon, and a porous layer formed on the surface of the electrode material layer. The porous can comprise an oxide containing at least one element selected from the group consisting of silicon, molybdenum, titanium, tantalum, zirconium, and tungsten. Use of this electrode for chromium plating reduces the oxidation of trivalent chromium into hexavalent chromium.