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:
Dec. 23, 2003
Filed:
Feb. 01, 2002
Applicant:
Inventors:
Assignee:
Sansha Electric Manufacturing Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23H 7/14 ; C25B 1/500 ; C25B 9/00 ; C25B 9/04 ;
U.S. Cl.
CPC ...
B23H 7/14 ; C25B 1/500 ; C25B 9/00 ; C25B 9/04 ;
Abstract
An electroplating current supply system includes a power supply unit for supplying an object to be plated ( ) with an electroplating current whose polarity is inverted at predetermined intervals. The power supply unit includes a first DC power supply ( A) supplying a positive current and a second power supply ( B) supplying a negative current. The system includes further a processing unit ( ) for controlling the ratio in magnitude and duration of the positive current (I ) to the negative current (I ) supplied to the object so as to plate the object with a uniform coating.