Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 23, 2007
Patent Application Number
10473289
Date Filed
March 26, 2002
Patent Primary Examiner
Patent abstract
A phosphate coating apparatus for depositing a phosphate coating on a metal material by electrolyzing the metal material in a predetermined electrolysis solution includes a positive electrode and a negative electrode, of which one electrode being disposed in contact with the metal material and the other electrode being disposed away from the metal material with a predetermined distance, and the other electrode being formed into a tubular shape so as to cover the entire length of the metal material.
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