1
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 ...


2
Fred Thomas Fred Thomas
Thomas Fred Charles, Wallentine Don W, Bero James, Wilson Scott: Acousto-optical intensity control of laser beam. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/025341

The intensity of a beam of light used to etch concentric servo tracks (12) on a magnetic medium is adjusted with an acousto-optical device to maintain the energy density delivered by the beam substantially constant while the optics (71) which generate the beam move radially of the disk (61).


3
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 ...


4
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 ...


5
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.


6
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 And Manufacturing Company, KURTZ Richard E, January 6, 1994: WO/1994/000274

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 ...


7
Thomas H Barrows, Harold E Froehlich: Surgical staple. Minnesota Mining and Manufacturing Company, Donald M Sell, James M Smith, Lorraine R Sherman, January 19, 1988: US04719917 (652 worldwide citation)

A surgical staple and method for its use in closing an opening in mammalian tissue are disclosed. The staple comprises a central portion of strong, ductile, non-absorbable material and lower leg portions of absorbable material positioned at opposite ends of the central portion. The staple when close ...


8
Alan K Plyley, Claude A Vidal, Russell J Redmond, John L Minck Jr, Alan J Solyntjes: Surgical stapler with mechanisms for reducing the firing force. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Jeffrey J Hohenshell, February 6, 1996: US05489058 (634 worldwide citation)

Surgical staplers for use during open and/or laparoscopic surgical procedures are disclosed. Novel firing device trapping assemblies, pushers, staple lines and firing handles are described. Many of the novel devices reduce the overall firing force experienced by the surgeon.


9
Louis A Errede, James D Stoesz, George D Winter deceased: Composite wound dressing. Minnesota Mining and Manufacturing Company, Cruzan Alexander, Donald M Sell, Lorraine R Sherman, February 15, 1983: US04373519 (613 worldwide citation)

A composite wound dressing, optionally having controlled permeability, is highly absorbent toward blood and exudate and comprises a polytetrafluoroethylene fibril matrix, hydrophilic absorptive particles enmeshed in the matrix, and, optionally, a partially occlusive film coated on one surface of the ...


10
James M Jonza, Michael F Weber, Andrew J Ouderkirk, Carl A Stover: Optical film. Minnesota Mining and Manufacturing Company, John A Fortkort, March 16, 1999: US05882774 (533 worldwide citation)

Birefringent multilayer optical films in which the refractive indices in the thickness direction of two adjacent layers are substantially matched have a Brewster angle (the angle at which reflectance of p-polarized light goes to zero) which is very large or is nonexistant. This allows for the constr ...



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