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:
Sep. 28, 1993
Filed:
Mar. 06, 1991
Applicant:
Inventor:
Masaaki Kamitani, Machida, JP;
Assignee:
Ebara-Udylite Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
205245 ; 106-129 ;
Abstract
An electroplating bath solution for zinc-cobalt-iron alloy and electroplated product electroplating by the bath solution are described. The electroplating bath solution containing 5-30 g/l Zn, 0.01-0.3 g/l Co and 0.02-0.5 g/l Fe, and electroplating layer of the product contains 0.1-0.6 wt % Co, 0.2-0.7 wt % Fe and Zn. The electroplated product gives a high quality black chromate film at cheaper cost than before.