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| Number | Title | Issue Date |
| 6559415 | Single sided laser shock peening A method for single sided laser shock peening an article includes laser shock peening a laser shock peening surface on a first side of the article while maintaining an opposite second surface on a back side of the article in acoustic communication with a ... | 05/06/2003 |
| 6559411 | Method and apparatus for laser scribing glass sheet substrate coatings A method and apparatus (42) for laser scribing coatings on glass sheet substrates by conveying the substrate adjacent a laser source (83) that provides a pulsed laser beam (84) with a wavelength at a near-infrared fundamental frequency and having a freque... | 05/06/2003 |
| 6558485 | Laser shock peening with an explosive coating A method of laser shock peening a metallic part by firing a laser on a coated laser shock peening surface of the part which has been covered with an explosive coating containing at least one explosive ingredient. Two or more explosive ingredients having d... | 05/06/2003 |
| 6555783 | Laser processing method and laser processing apparatus A laser processing method, which uses laser beam from a laser oscillator to emit continuously light pulse having large spacial and temporal energy concentration in a pulse emission period of one picosecond or less, and projects a mask pattern with a proje... | 04/29/2003 |
| 6553647 | Method of wiring a head suspension assembly A method of wiring a head suspension assembly includes fixing a tube binding a plurality of wires on a suspension assembly, and fixing the wires extending from the fixed tube on the suspension while leading them to a top side of the suspension. The suspen... | 04/29/2003 |
| 6552302 | Method for correcting surface shape of magnetic head slider and magnetic head slider A method for correcting an outer surface of a magnetic slider mainly made of ceramic to a desired surface shape, wherein a laser beam is applied to an outer face of a work piece (10) to partially melt a ceramic base, the melted part (20) is resolidfied, a... | 04/22/2003 |
| 6548782 | Overlay control for laser peening A method of controlling the application of laser peening overlays on the surface of a workpiece to reduce the variability of shock waves generated therein, comprises applying an energy-absorbing overlay to a portion of the surface of a workpiece, measurin... | 04/15/2003 |
| 6548009 | Method for controlling twist curvature of a disc head slider An apparatus and method for controlling twist curvature of a disc head slider is provided, where the slider has a bearing surface, a back surface, which is opposite to the bearing surface, a longitudinal axis and a transverse axis. The apparatus obtains a... | 04/15/2003 |
| 6541733 | Laser shock peening integrally bladed rotor blade edges A method for laser shock peening rotor blade leading and trailing edges of gas turbine engine integrally bladed rotors and disks that are not blocked by other rows of blades. The method includes continuously firing a stationary laser beam, which repeatabl... | 04/01/2003 |
| 6540952 | Laser ablation of multiple layers A method of providing multiple arcuate ablations on a corner portion of a polymeric laminate. The laminate includes more than one layer, with each layer having a an exposed upper surface. The method comprises selectively ablating a first layer in a first ... | 04/01/2003 |
| 6538233 | Laser release process for micromechanical devices A method for releasing a structure from contact with a substrate in a micromechanical device includes the step of irradiating the structure with energy having parameters selected to produce a thermal gradient normal to the surface of the structure which c... | 03/25/2003 |
| 6537479 | Subsurface engraving of three-dimensional sculpture A matrix is formed into a desired shape by pouring transparent liquid material into a mold. The material progressed from the liquid to the gelatinous state. Laser sculpting steps are performed when the material is still in a gelatinous condition to form s... | 03/25/2003 |
| 6534134 | Apparatus and method for pulsed laser deposition of materials on wires and pipes Methods and apparatuses are disclosed which allow uniform coatings to be applied by pulsed laser deposition (PLD) on inner and outer surfaces of cylindrical objects, such as rods, pipes, tubes, and wires. The use of PLD makes this technique particularly s... | 03/18/2003 |
| 6528763 | Laser search peening for exfoliation corrosion detection An exfoliation corrosion detection method which enables rapid detection and evaluation of hidden exfoliation corrosion on aircraft with related cost savings. Pressure exerted on the surface by the laser created plasma generates a pressure pulse or shock w... | 03/04/2003 |
| 6528006 | Method of machining preformed plastic film by separation and/or ablation The invention relates to a method of producing plastic film having a predefinable outline and/or even or uneven thickness, by machining preformed plastic film for separation and/or ablation. The method is used especially for producing flexible flaps for a... | 03/04/2003 |
| 6526648 | Positioning of an optical device using a non-force-applying external agent An optical device is positioned by mounting the optical device in a support formed at least in part of a support material which is capable of controllable and permanent mechanical deformation by a non-force-applying agent. Examples of such support materia... | 03/04/2003 |
| 6521864 | Method and apparatus for the laser cutting of mild steel or structural steel with a multifocus optical component Method and apparatus for cutting a workpiece made of structural steel or mild steel, i.e. alloy or non-alloy steels, by the use of a transparent or reflecting optical unit for focusing a laser beam, and of an assist gas for the laser beam. The optical uni... | 02/18/2003 |
| 6521860 | Beam path clearing for laser peening An apparatus and method for providing a substantially debris-free laser beam path for use during laser shock processing. The method and apparatus include a system for removing debris from the laser beam path and a system for preventing debris from enterin... | 02/18/2003 |
| 6518544 | Method for material machining by way of laser A laser beam is led in tracks over a section of a surface to be machined, whereupon the surface is moved in order to bring a neighboring section into the machining field of the laser over which the laser beam is then again led in tracks. At the borders of... | 02/11/2003 |
| 6509547 | Method for laser stripping of optical fiber and flat cable This invention results from the realization that a laser can remove the protective layer(s) from the glass or fused silica optical fiber core and cladding more effectively and more reliably than chemical or mechanical means. This invention teaches methods... | 01/21/2003 |
| 6501048 | Slider having thermally applied tensile stress for curvature control and method of applying tensile stress A method of controlling curvature of a disc head slider having a slider body with a bearing surface, a back surface, which is opposite to the bearing surface, a first axis and a second axis, which is perpendicular to the first axis, is provided. The metho... | 12/31/2002 |
| 6495237 | Denim design from laser scribing A number of new laser patterns are defined by laser scribing the material. This produces new laser patterns which have not previously been known.... | 12/17/2002 |
| 6495468 | Laser ablative removal of photoresist In one aspect, the invention provides a method of exposing a material from which photoresist cannot be substantially selectively removed utilizing photoresist. In still another aspect of the invention, laser ablation of photoresist is utilized. In one imp... | 12/17/2002 |
| 6495797 | Beam delivery system A photon energy beam delivery system has a gas delivery tube extending generally the length of the beam path, having a plurality of openings oriented generally toward the beam path. Gas is discharged through the openings, flowing proximal to the beam path... | 12/17/2002 |
| 6489590 | Laser removal of foreign materials from surfaces A method of fast and complete laser removal of inorganic and organic foreign material, including particles down to submicron-sizes and atomic contaminants, such as heavy metals and alkaline elements, from a substrate without any damage to the substrate, c... | 12/03/2002 |
| 6488861 | Coupling system to a microsphere cavity A system of coupling optical energy in a waveguide mode, into a resonator that operates in a whispering gallery mode. A first part of the operation uses a fiber in its waveguide mode to couple information into a resonator e.g. a microsphere. The fiber is ... | 12/03/2002 |
| 6486433 | Transparent pressure bladder An inflatable bladder system for applying generally uniform pressure to parts being welded to insure proper contact at the welding interface includes a first sheet that is generally transparent to electromagnetic radiation to allow such radiation to pass ... | 11/26/2002 |
| 6486432 | Method and laser cladding of plasticating barrels A system and process is provided for cladding the interior of plasticating barrels or any other interior surface. The cladding operation uses a laser head that carries out a spiral welding operation to create a smoother lining than is capable with convent... | 11/26/2002 |
| 6483076 | Method of positioning a workpiece for optimal processing A method of producing a workpiece involves positioning the workpiece at a current processing position indicated by a hard-coded part program and then collecting position data which defines the positional arrangement of a current target area of the workpie... | 11/19/2002 |
| 6479790 | Dual laser shock peening A method and system for dual laser shock peening an article are provided. The method allows for defining a spot pattern comprising a plurality of spots on a first surface of the article to be peened. The method further allows for defining a spot pattern c... | 11/12/2002 |
| 6479168 | Alloy based laser welding A method is disclosed for laser lap welding a pair of metal members together. At least one of the pair of metals having a protective metal layer. Each of the metal members having a melt temperature greater than the melt temperature of the protective metal... | 11/12/2002 |
| 6469275 | Oblique angle laser shock processing A method and apparatus for improving properties of a solid material by providing shockwaves therethrough. The method includes controlling the incident angle .THETA. of the laser beam applied to the workpiece so that the required residual stresses are crea... | 10/22/2002 |
| 6465756 | Method and apparatus for engraving A laser beam 7 from an engravement portion softening mechanism 6 of an apparatus is condensed onto an engravement portion on an engravement surface of a workpiece 1 for softening the engravement portion. When the hardness of the engravement portion is low... | 10/15/2002 |
| 6462308 | Utilizing altered vibration responses of workpieces, such as gas turbine engine blades An apparatus and method of utilizing natural frequency shifts of a laser shock processed workpiece to determine if sufficient laser shock processing has been accomplished.... | 10/08/2002 |
| 6461929 | Method for the fine tuning of a passive electronic component A method for the fine tuning of a passive electronic component having at least a carrier substrate and at least one electrically conducting layer containing a material having a conducting nitride, a conducting oxynitride, a semiconductor, or chromium, by ... | 10/08/2002 |
| 6454877 | Laser phase transformation and ion implantation in metals A method and apparatus are provided for treating the surface of a metal body through phase transformation, ion implantation, and/or diffusion and to form new phases of metallic materials. The method and apparatus have been shown to be particularly useful ... | 09/24/2002 |
| 6441337 | Laser machining method, laser machining device and control method of laser machining This is to present a laser machining method and a laser machining apparatus for drilling holes, capable of achieving conduction securely between adjacent conductive layers, by detecting the machining state of a workpiece adequately, and controlling the ma... | 08/27/2002 |
| 6437287 | Laser processing device There is described a laser processing device (1) whereby, by means of laser light (6), a workpiece (4) can be processed and wherein, at the same time, an image of the workpiece (4) to be processed is obtained, wherein the focusing of the imaging optics is... | 08/20/2002 |
| 6437285 | Method and apparatus for treating interior cylindrical surfaces and ablating surface material thereon A method and system for treating internal surface material overlying the interior of a tubular a substrate, and more particularly, to a system for ablating contaminates and other unwanted material from an internal surface 52 using a pulsed laser beam (38)... | 08/20/2002 |
| 6423935 | Identification marking by means of laser peening The invention is a method and apparatus for marking components by inducing a shock wave on the surface that results in an indented (strained) layer and a residual compressive stress in the surface layer. One embodiment of the laser peenmarking system rapi... | 07/23/2002 |
