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| Number | Title | Issue Date |
| 6660964 | Optical modification of laser beam cross section in object marking systems Cells of a liquid crystal device are switched between transparent and dark states or, alternatively, reflectors of a microelectromechanical system are switched between tilted states, to form a marking pattern and control the transmission of a laser beam t... | 12/09/2003 |
| 6657157 | Method, system and product for producing a reflective mask mirror and for ablating an object using said reflective mask mirror There is provided a system and method for ablating a surface of a work-piece comprising a radiation source for providing an ablating beam and a plurality of adjustable reflective masks having predetermined mask patterns thereon. The reflective masks are s... | 12/02/2003 |
| 6653592 | Appliance for the surface treatment of coated elements The appliance is used for the surface treatment of coated elements (3; 30; 300), in particular of cables, the coating (31, 310) of which is removed or separated by means of at least two laser diodes (1a, . . . , 1h). The laser diodes 1a, . . . , 1h) are m... | 11/25/2003 |
| 6649863 | Gemstone marking system with a focus sensing unit for sensing relative disposition between a marking surface of the gemstone and a focal plane of a laser beam A gemstone marking system includes a focus sensing unit sensing relative disposition between the marking surface of the gemstone and the focal plane of the laser beam. The focus sensing unit includes a light source emitting a collimated optical beam direc... | 11/18/2003 |
| 6647614 | Method for changing an electrical resistance of a resistor A method for changing an electrical resistance of a resistor. Initially, the resistor is provided, wherein the resistor has a length L and an electrical resistance R1. A portion of the resistor is exposed to a laser radiation, wherein the porti... | 11/18/2003 |
| 6649861 | Method and apparatus for fabrication of miniature structures An apparatus is provided for fabrication of miniature structures which includes a substrate, a controllable energetic beam, a deposition layer supported on a material carrier element and a control unit operating the apparatus in either of "material remova... | 11/18/2003 |
| 6642475 | Etched article and method of etching A substrate is marked by applying a high melting point material over a lower surface of the substrate, and then heating the material layer. Indicia are formed by directing a source of radiant energy through the substrate for impingement on the material la... | 11/04/2003 |
| 6639175 | Marking device A marking device for the creation of an optical mark onto an object has a laser connected to a power supply unit to create a laser beam and a speed acquisition device for determining a positioning speed at which the laser beam follows a repetitive pattern... | 10/28/2003 |
| 6639177 | Method and system for processing one or more microstructures of a multi-material device A method and system for processing at least one microstructure which is part of a multi-material device containing a plurality of microstructures is provided. The at least one microstructure has a designated region for target material removal. The method ... | 10/28/2003 |
| 6639176 | Method and device for producing welded blanks For the manufacture of composite panels (16) it is proposed that they be held essentially upright by means of holding devices (17) and that welding by means of a laser welding plant (11, 13) be performed in this position. This affords a considerable space... | 10/28/2003 |
| 6635845 | Dry surface cleaning apparatus using a laser A dry surface cleaning apparatus removes surface contaminants on a surface of a workpiece. The dry surface cleaning apparatus includes a laser for generating a laser beam, a beam delivery control unit for splitting the laser beam into a first and a second... | 10/21/2003 |
| 6635844 | Apparatus for on-line cleaning a wafer chuck with laser A stepper system, having an apparatus for on-line cleaning a wafer chuck by utilizing laser, has a wafer stage capable of moving horizontally along x-y directions and vertically along z direction, the wafer chuck, having a top surface contaminated by orga... | 10/21/2003 |
| 6624382 | Configured-hole high-speed drilling system for micro-via pattern formation, and resulting structure Economical production of configured, laser-drilled, high-precision, ultra-miniature multiple-via-hole patterns is accomplished by multiplexing the homogenized, shaped, nearly-collimated output of one or more high-power excimer lasers into a set of beamlin... | 09/23/2003 |
| 6625181 | Method and apparatus for multi-beam laser machining An apparatus for laser machining for optically machining a workpiece. The apparatus comprises a plane polarized primary laser beam source adapted to generate a primary plane polarized light beam; a beam splitter, adapted to split the primary light beam in... | 09/23/2003 |
| 6624383 | Using laser etching to improve surface contact resistance of conductive fiber filler polymer composites A method for improving the line or point-to-point surface contact resistance of an electrically conductive fiber filled polymer composite includes the laser evaporating of a thin polymer layer from the surface of the composite and exposing of the electric... | 09/23/2003 |
| 6621041 | Marking method and marking apparatus using multiple photon absorption, marked optical element manufactured by using the marking method and the marking apparatus A marking method is provided which permits an easy detecting of the presence of a mark without using a specific reading apparatus, and is capable of avoiding a damage as well as a strength deterioration of an object material. The marking method comprises:... | 09/16/2003 |
| 6621043 | Laser trim process control A method of calibrating a laser utilized in a laser element cutting system utilizing a mechanical gauge having pairs of metal pads formed in rows and columns on a substrate material. The height of the metal pads varies in each row with each column having ... | 09/16/2003 |
| 6615099 | Method and device for calibrating a workpiece laser-processing machine A method and arrangement for calibrating a laser processing machine for processing workpieces. The present invention ensures a fast and reproducible method and arrangement for calibrating a laser processing machine by measuring a position of a predetermin... | 09/02/2003 |
| 6605244 | Hematite engraving In a process of engraving a bead of hematite (Fe2 O3) in the form of specularite, a crystalline form with bright metallic luster, a pulsed laser beam is focused on the bead. The beam has a width of 0.005 to 0.006 inches, a wavelength... | 08/12/2003 |
| 6603094 | Laser wire stripper apparatus and method therefor An assembly for use in a laser wire stripping apparatus that has a single piece channel assembly which has a pathway for allowing a light source to travel through the channel assembly to a cylindrical cavity in the channel assembly. A collet is provided a... | 08/05/2003 |
| 6599461 | Method for producing nonslip floor coverings The invention relates to a method of manufacturing non-slip floor coverings made of mineral materials, such as, for example, natural stone, fine stoneware, artificial stone or ceramics. This method is carried out in a two-stage process, there being produc... | 07/29/2003 |
| 6596965 | Method and apparatus for marking an identification mark on a wafer A method and an apparatus for marking an identification mark on a wafer. After the wafer is aligned, a laser beam is radiated onto a predetermined portion on the wafer so that the identification mark is engraved on the wafer. While the laser beam is being... | 07/22/2003 |
| 6593543 | Gemstone marking system and method Diamonds are marked by applying apertured stencils bearing identifying indicia to the girdles, applying a fusible coating material over the apertured stencils, and then heating the coating material to fuse the material on the girdles. The stencils can be ... | 07/15/2003 |
| 6593542 | UV laser system and method for single pulse severing of IC fuses A Q-switched, diode-pumped, solid-state (DPSS) laser (54) employs harmonic generation through nonlinear crystals (72) to generate UV light (74) for both link processing and target alignment. The type and geometry of the nonlinear crystals (72) are selecte... | 07/15/2003 |
| 6593541 | Method for machining workpieces and machine tool Laser machining is often carried out using special machines or apparatus, with the workpieces having to be finished afterwards using appropriately equipped cutting machine tools. According to the invention, a laser beam (5) is supplied on the head-stock (... | 07/15/2003 |
| 6590182 | Laser repair apparatus and method A laser repair apparatus comprises a stage for a wafer to be mounted on, a laser beam source for emitting a laser beam, focus adjusting means for adjusting a focus of the laser beam, and focal point measuring means for measuring a focal point of the laser... | 07/08/2003 |
| 6590181 | Laser cutter apparatus using two laser beams of different wavelengths The present invention disclose a laser cutter for cutting an object being cut such as a two glasses-attached panel for LCD using a laser beam. The laser cutter includes a laser unit for irradiating a laser beam with a specific wavelength along a marked cu... | 07/08/2003 |
| 6584982 | Cigarette butt marking for smoking machines An apparatus for marking cigarettes with a mark to terminate operation of a smoking machine includes a jig for holding at least 40 cigarettes and maintaining the cigarettes' position with a seam side of each cigarette facing a given direction. A scannable... | 07/01/2003 |
| 6584899 | Apparatus for form-processing paper in a printing press Method for form-processing paper in a printing press by at least one processing tool and a computer includes converting digital data representing desired processing geometries into signals in the computer, and controlling the at least one processing tool ... | 07/01/2003 |
| 6583380 | Device and method for marking copper-clad laminates A device for marking copper-clad laminates comprises a laser (10), in whose resonator (12) there is an intensity-controlling screen (24), an expanding lens (26) for expanding the laser beam (18) and a focusing lens (30) for focusing the expanded laser bea... | 06/24/2003 |
| 6580054 | Scribing sapphire substrates with a solid state UV laser A process and system scribe sapphire substrates, by performing the steps of mounting a sapphire substrate, carrying an array of integrated device die, on a stage such as a movable X-Y stage including a vacuum chuck; and directing UV pulses of laser energy... | 06/17/2003 |
| 6580053 | Apparatus to control the amount of oxygen incorporated into polycrystalline silicon film during excimer laser processing of silicon films The invention provides an apparatus for reducing, or eliminating, ambient air in connection with an excimer laser annealing process. Nozzles are provided to direct a flow of gas, preferably helium, neon, argon or nitrogen, at a region overlying the target... | 06/17/2003 |
| 6576865 | Laser trimming program generation method An apparatus and method for generating a laser trimming program without causing errors due to development by human hands in a time that does not depend on experiences etc. of a person who generates a program, as well as a recording medium on which a progr... | 06/10/2003 |
| 6576862 | Laser-scribing process for rubber and thermoplastic materials such as a hose A laser apparatus which operates to mark specified information on a rubber or plastic product, such as a hose. The information is marked using a laser whose energy density per unit time is controlled. The information can.be an alphanumeric information, or... | 06/10/2003 |
| 6574250 | Laser system and method for processing a memory link with a burst of laser pulses having ultrashort pulse widths A burst (50) of ultrashort laser pulses (52) is employed to sever a conductive link (22) in a nonthermal manner and offers a wider processing window, eliminates undesirable HAZ effects, and achieves superior severed link quality. The duration of the burst... | 06/03/2003 |
| 6566628 | Method and device for thin-film ablation of a substrate A method and device for thin-film ablation of a substrate of a workpiece, more particularly, for surface layer ablation of a thin-film solar cell. The device comprises a laser resonator for generating a light pulse machining beam having pulse durations sm... | 05/20/2003 |
| 6567193 | Hologram production technique A system for forming holographic pixels on the surface of a workpiece is disclosed. The system comprises a laser generating a laser beam; a beam splitter dividing the laser beam into a first beam and a second beam; a controller providing as output at leas... | 05/20/2003 |
| 6563080 | Laser cutting of stents and other medical devices A desired pattern may be cut into a stent preform by impinging a laser beam onto the stent preform. The laser beam is formed using a laser system comprising a resonator cavity for resonating laser radiation, a gain medium contained in the resonator cavity... | 05/13/2003 |
| 6559410 | Apparatus and method for laser etching wear patterns into denim pants An apparatus and method for forming simulated wear patterns and designs in denim pants using laser rays. The apparatus includes an indexable carousel having a plurality of circumferentially spaced pant-supporting mandrels that are sequentially indexable t... | 05/06/2003 |
| 6559409 | Method for marking integrated circuits with a laser A method for physically marking, on silicon wafers, of integrated circuits deemed to be defective during a testing step, so as to modify the visual appearance of the surface of these circuits, wherein the marking is done by the exposure of the circuits to... | 05/06/2003 |
