1
Fred Thomas Fred Thomas
Fred C Thomas, Don W Wallentine, James Bero, Scott Wilson: Steering laser beam while etching optical servo tracks for magnetic disks. Iomega Corporation, Woodcock Washburn Kurtz Mackiewicz & Norris, February 1, 1994: US05283773 (26 worldwide citation)

A beam of light used to etch servo tracks on a magnetic disk is steered with an acousto-optical device to maintain the beam in concentrical patterns while mechanically moving the optics which generate the beam of light continuously radially of the disk.


2

3
Fred Thomas Fred Thomas
Thomas Fred Charles, Wallentine Don W, Bero James, Wilson Scott: Steering laser beam while etching optical servo tracks for magnetic disks. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/026007

A beam of light used to etch servo tracks on a magnetic disk is steered with an acousto-optical device to maintain the beam in concentrical patterns while mechanically moving the optics which generate the beam of light continuously radially of the disk.



Click the thumbnails below to visualize the patent trend.