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. 20, 1977
Filed:
Sep. 15, 1975
Applicant:
Inventors:
Shin-Ichi Tokumoto, Yokohama, JA;
Eiji Tanaka, Yokohama, JA;
Kenji Ogisu, Yokohama, JA;
Tadao Fujita, Yokohama, JA;
Assignee:
Sony Corporation, Tokyo, JA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
204 39 ; 204273 ; 204D / ;
Abstract
An electrodeposition method of electrodepositing a material with a flat and smooth surface, in which an electrolytic condition such as a speed of movement of a cathode relative to an electrolyte, an electrolytic current density, a duty ratio of an interrupted electrolytic current or an interruption frequency of an electrolytic current is changed periodically from a normal value to another value and back again.