A method of remedying a coating characterized by irradiating a minute defect in the coating due to the adhesion of a dust particle, oil droplet or the like with a laser beam having a cross section generally in conformity with the defect to sublime the dust particle, oil droplet or the like and the coating...http://www.google.es/patents/US4960611?utm_source=gb-gplus-sharePatente US4960611 - Method of remedying coating