Anodizing apparatus and anodizing method

An anodizing apparatus configured to perform an anodization on a metallic material to be processed provided with a projecting portion on a surface thereof, comprising:

• an electrolysis tank configured to store electrolytic solution for anodization;
• a first electrode portion formed of a metal and electrically connected to the material to be processed in an immersed state immersed in the electrolytic solution in the electrolysis tank;
• a second electrode portion formed of a metal and opposing the material to be processed in the immersed state;
• an electrode apparatus configured to apply a predetermined voltage between the first electrode portion and the second electrode portion;
• a retaining device configured to retain and rotate the material to be processed in the immersed state;
• and
• a first injection device configured to inject the electrolytic solution for the anodization toward a predetermined area deviated from the material to be processed in a storage space in the electrolysis tank so that the material to be processed is deviated from a line in the direction of injection.