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:
Sep. 09, 2003
Filed:
Feb. 07, 2001
Applicant:
Inventor:
Donald J. Kerfeld, St. Paul, MN (US);
Assignee:
Imation Corp., oakdale, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 1/100 ; B29D 1/700 ;
U.S. Cl.
CPC ...
B29D 1/100 ; B29D 1/700 ;
Abstract
In exemplary embodiments, the invention provides one or more processes for making stampers for stamping replica data storage disks. For instance, the invention may provide a process for making a family of stampers from one master. Moreover, the invention may provide a way to systematically adjust the depth of the grooves on a stamper in a particular family of stampers while maintaining groove widths that are substantially the same as those of the master.