Patent ID: 11913129
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 1:
2. The film formation method for the metallic coating according to claim 1, further comprising:
remeasuring the alternating current impedance after the re-tensioning of the solid electrolyte membrane, and redetermining whether the imaginary component of the remeasured alternating current impedance is equal to or more than the film-formable value or not;
when the imaginary component is equal to or more than the film-formable value in the redetermining, forming the metallic coating in a state where the substrate is pressed by the re-tensioned solid electrolyte membrane; and
when the imaginary component is smaller than the film-formable value in the redetermining, forming the metallic coating in a state where poles of the anode and the substrate that serves as the cathode are inverted in the state where the substrate is pressed by the re-tensioned solid electrolyte membrane, subsequently, the surface of the substrate is etched by applying a voltage between the anode and the substrate until the imaginary component reaches the film-formable value, and the etched substrate is pressed by the re-tensioned solid electrolyte membrane.