1
Fred Thomas Fred Thomas
Fred C Thomas, Paul R Johnson: Pneumatic hub locking device for etching optical servo tracks on magnetic disks. Iomega Corporation, Woodcock Washburn Kurtz Mackiewicz & Norris, June 21, 1994: US05322987 (21 worldwide citation)

An apparatus for etching optical servo tracks on a magnetic storage disk comprises optics for generating a beam of light for etching the servo tracks and a spindle for rotating the disk in proximity to the optics. The device further comprises a center pin at the center of rotation of the spindle and ...


2
Fred Thomas Fred Thomas
Fred C Thomas, James Bero, Robert Short, Paul R Johnson: Apparatus for and method of verifying etching of optical servo information on magnetic media. Iomega Corporation, Woodcock Washburn Kurtz Mackiewicz & Norris, August 2, 1994: US05334849 (10 worldwide citation)

An apparatus and method for etching a point on the surface of a magnetic medium to reduce the reflectivity of the point and for verifying that proper etching occurred. A light source provides a collimated incident beam of light. The incident beam is focused to a point on the medium and a portion of ...


3
Fred Thomas Fred Thomas
Paul R Johnson, James Bero, Jeff G Carter, Anthony M Candia, George T Kieger, Ronald F Hales, Fred C Thomas III: Method of and apparatus for removing debris from the floptical medium. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Eric D Levinson, May 30, 1995: US05419733 (6 worldwide citation)

The current invention substantially removes particulate waste materials or debris from the floptical medium after laser etching. A low-temperature gas containing ice crystals is applied at a predetermined angle while the floptical medium is being rotated to improve the cleaning effect. The temperatu ...


4
Fred Thomas Fred Thomas
Fred C Thomas III, Todd L Graves, Todd R Shelton, Paul Smith: System and method for cartridge detection and verification using signal comparison. Iomega Corporation, Woodcock Washburn Kurtz Mackiewicz & Norris, October 2, 2001: US06297924 (4 worldwide citation)

A system and method which is used to identify and discriminate the type of data storage cartridge that has been inserted into a disk drive. A system for identifying a type of data storage cartridge having a marker comprises a light source for emitting light to illuminate the marker, a first photodet ...


5
Fred Thomas Fred Thomas
Thomas Fred Charles, Bero James, Short Robert, Johnson Paul R: Apparatus for and method of verifying etching of optical servo information on magnetic media.. Minnesota Mining & Mfg, March 29, 1995: EP0645043-A1 (4 worldwide citation)

An apparatus and method for etching a point on the surface of a magnetic medium to reduce the reflectivity of the point and for verifying that proper etching occured. A light source (40) provides a collimated incident beam of light (42). The incident beam is focused to a point on the medium (57) and ...


6
Fred Thomas Fred Thomas
Robert D Allgood, Paul Smith, Fred C Thomas III: Frequency based cartridge detection system. Iomega Corporation, Woodcock Washburn, July 23, 2002: US06424492 (3 worldwide citation)

A data storage disk having a latent illuminance discrimination marker for determining whether the data storage disk is suitable for use in a disk drive. A light source illuminates the marker and the marker emits illuminance, preferably as phosphorescence. A detector detects the emitted illuminance, ...


7
Fred Thomas Fred Thomas
Fred Charles Thomas, Paul A Boerger, Matthew D Haines: Providing data redundancy using an internal mass storage device and an external mass storage device. Hewlett Packard Development Company, November 5, 2013: US08578091

A computer includes an enclosure, an internal mass storage device within the enclosure, and a redundancy controller within the enclosure. At least one port enables direct connection of the computer to at least one external mass storage device. The redundancy controller is configured to provide data ...


8
Fred Thomas Fred Thomas
Johnson Paul R, Bero James, Carter Jeff G, Candia Anthony M, Kieger George T, Hales Ronald F, Thomas Fred C Iii: A method of and apparatus for removing debris from the floptical medium.. Minnesota Mining & Mfg, April 12, 1995: EP0647170-A1

A method and apparatus for removal of particulate waste materials or debris (10) from the floptical medium (1) after laser etching. A low temperature gas containing ice crystals (4) is applied at a predetermined angle while the floptical medium (1) is being rotated to improve the cleaning effect. Th ...


9
Fred Thomas Fred Thomas
Thomas Fred Charles, Johnson Paul R: Pneumatic hub locking device for etching optical servo tracks on magnetic disks. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/025343

An apparatus for etching optical servo tracks on a magnetic storage disk (11) comprises optics for generating a beam of light for etching the servo tracks and a spindle (15) for rotating the disk (11) in proximity to the optics. The device further comprises a center pin (16) at the center of rotatio ...


10
Fred Thomas Fred Thomas
Thomas Fred Charles, Bero James, Short Robert, Johnson Paul R: Apparatus for and method of verifying etching of optical servo information on magnetic media. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/026004

An apparatus and method for etching a point on the surface of a magnetic medium to reduce the reflectivity of the point and for verifying that proper etching occured. A light source (40) provides a collimated incident beam of light (42). The incident beam is focused to a point on the medium (57) and ...



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