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:
Jan. 18, 1994
Filed:
Jun. 10, 1992
Applicant:
Inventors:
Fred C Thomas, Kaysville, UT (US);
Don W Wallentine, Layton, UT (US);
James Bero, Ogden, UT (US);
Scott Wilson, Westminster, CO (US);
Assignee:
Iomega Corporation, Roy, UT (US);
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; G11B / ; B29D / ;
U.S. Cl.
CPC ...
264-13 ; 21912161 ; 21912169 ; 264-14 ; 264 25 ; 264 401 ;
Abstract
The intensity of a beam of light used to etch concentric servo tracks on a magnetic medium is adjusted with an acousto-optical device to maintain a substantially constant energy density delivered by the beam while the optics which generate the beam move radially of the disk.