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. 31, 2002
Filed:
Oct. 12, 2000
Forskarpatent I Uppsala AB, Uppsala, SE;
Abstract
The present invention discloses a color-modifying method, which comprises the provision of a metal oxide thin film ( ) based on Ni and/or Cr. The method is characterized in that, when coloring the metal oxide film ( ), exposing the metal oxide thin film to ozone, and when bleaching the metal oxide film, exposing the metal oxide film to UV radiation ( ). A lamination process or a deposition of another thin film may follow the exposure. Preferably, exposing the metal oxide thin film ( ) to ultraviolet radiation ( ) in an oxygen-containing atmosphere ( ) provides the ozone exposure and exposing the metal oxide thin film to ultraviolet radiation ( ) in an oxygen-free atmosphere ( ) provides the ultraviolet exposure.