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:
May. 28, 2002
Filed:
May. 25, 1999
Applicant:
Inventor:
David Vigdor Salamon, San Jose, CA (US);
Assignee:
Komag, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 7/18 ; B05D 5/12 ;
U.S. Cl.
CPC ...
C08J 7/18 ; B05D 5/12 ;
Abstract
A method for marking the defective side of a magnetic disk comprises the step of applying a set of laser pulses to the defective side to form a mark that is visible to the naked eye. Thus, disk drive manufacturers can readily see whether one side of the disk is defective, and if so, which side of the disk is defective. Thus, the disk drive manufacturer can assemble a disk drive so as to use the functional side of the disk. The laser marks are formed on the disk without generating particulate contamination.