Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 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 |
| 6587136 | Method for making marks in a transparent material by using a laser An object to be marked is prepared. A laser beam of a wavelength that is transmitted by the material from which this object to be marked is formed is focused on the inner portion of said object to be marked, using an fθ lens. A mark is formed in the regi... | 07/01/2003 |
| 6586702 | High density pixel array and laser micro-milling method for fabricating array A pixel array device is fabricated by a laser micro-milling method under strict process control conditions. The device has an array of pixels bonded together with an adhesive filling the grooves between adjacent pixels. The array is fabricated by moving a... | 07/01/2003 |
| 6583379 | Process chamber for selective laser fusion The invention relates to a process chamber for the selective laser fusion of material powder for the production of moulded parts. The process chamber consists of a closed chamber (1) having a bottom area, side walls and a cover area (6), a reservoir volum... | 06/24/2003 |
| 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 |
| 6566169 | Method and apparatus for local vectorial particle cleaning Particles are removed from the surface of a substrate. Respective position coordinates of the particles on the surface are determined. A beam of electromagnetic energy is directed at the coordinates of each of the particles in turn, such that absorption o... | 05/20/2003 |
| 6563083 | Laser robot for workpiece machining and method for workpiece machining with a laser robot A laser robot for workpiece machining has a first robot link with a robot hand. A first beam path of a first laser beam is arranged on the longitudinal axis of the first robot link and deflected at an end facing a workpiece into an axis-parallel second be... | 05/13/2003 |
| 6563130 | Distance tracking control system for single pass topographical mapping A distance tracking control system, for use with a working member such as a robotic head, includes a non-contact distance sensor for sensing a distance of the working member from a surface. An actuator is provided for making positional adjustments of the ... | 05/13/2003 |
| 6549602 | Incore piping section maintenance system of reactor An incore piping section maintenance system of a reactor comprises a maintenance system main body which is fixed to a maintenance target portion in a reactor pressure vessel or in the vicinity thereof to which a preventive-maintenance operation is execute... | 04/15/2003 |
| 6548191 | Filler wire for laser-welding aluminum alloy member, method of welding aluminum alloy member by using the filler wire, and welded-aluminum alloy member produced by using the filler wire A filler wire for laser-welding an aluminum alloy is described, which comprises a base material of Aluminum-Silicon based alloy and a flux of Aluminum-Potassium-Fluorine-based composition. The amount of the flux in the base material is greater than 0 (zer... | 04/15/2003 |
| 6543677 | Solder-ball bonding device and method In devices for solder-ball bonding of a bonding pad of a slider of a head gimbal assembly to a lead pad of a lead, although a device that can perform (1) the supply of solder balls, (2) the positioning of a solder ball, (3) the blowing of nitrogen gas N | 04/08/2003 |
| 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 |
| 6534743 | Resistor trimming with small uniform spot from solid-state UV laser A uniform laser spot, such as from an imaged shaped Gaussian output (118) or a clipped Gaussian spot, that is less than 20 μm in diameter can be employed for both thin and thick film resistor trimming to substantially reduce microcracking. These spots ca... | 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 |
| 6528754 | Underwater maintenance repair device and method The present invention provides an underwater maintenance and repair technology of including a laser oscillator for generating a laser beam and a working head movably attached to the vicinity of a working target portion in the underwater and adapted to sca... | 03/04/2003 |
| 6526985 | Apparatus for perforating tubular wrappers of rod-shaped articles Successive cigarettes of a series of cigarettes, such as filter cigarettes, are transported sideways in the axially parallel peripheral flutes of a rotary drum-shaped conveyor to the inlet(s) of a straight or V-shaped rolling channel or of two successive ... | 03/04/2003 |
| 6526327 | One-step rapid manufacturing of metal and composite parts A one-step rapid manufacturing process is used to create three dimensional prototyping parts. Material such as metal, ceramics and the like powder, and wire, and the like, is delivered to a laser beam-material interaction region where it is melted and dep... | 02/25/2003 |
| 6526089 | Laser marker and method of light spot adjustment therefor A laser marker includes a collimator lens converting laser light emitted from a broad area semiconductor laser into substantially parallel beams of light, a cylindrical concave lens permitting to pass therethrough the laser light having passed through the... | 02/25/2003 |
| 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 |
| 6521068 | Method and device for detaching a segment of a material layer For the purpose of producing a method for detaching a segment--disposed on a carrier--from a material layer extending in a layer plane and having a specific layer thickness, by means of a laser pulse passing through the carrier in such a way as to detach ... | 02/18/2003 |
| 6518541 | Duty cycle stabilization in direct metal deposition (DMD) systems The laser duty cycle in a direct metal deposition (DMD™) system is monitored and used to control another device to keep the duty cycle within a desired range. In the preferred embodiment, the duty cycle is used to control powder flowrate to keep the dut... | 02/11/2003 |
| 6518539 | Method for producing damage resistant optics The present invention provides a system that mitigates the growth of surface damage in an optic. Damage to the optic is minimally initiated. In an embodiment of the invention, damage sites in the optic are initiated, located, and then treated to stop the ... | 02/11/2003 |
| 6509546 | Laser excision of laminate chip carriers A method and associated structure for excising laminate chip carriers from a panel that has a thickness less than about 100 mils. A laser beam is focused on a surface of the panel, and the panel is moved relative to the laser beam in a geometric pattern, ... | 01/21/2003 |
| 6505489 | Method and apparatus for ultrasonic peening of axial recesses for the attachment of blades to a rotor The invention relates to an apparatus and to a method for the surface treatment and compressive prestressing by peening of a wall of at least one oblong cavity formed in a part, said cavity opening to the outside via a lateral mouth and having two ends pr... | 01/14/2003 |
| 6495791 | Method and subsystem for generating a trajectory to be followed by a motor-driven stage when processing microstructures at a laser-processing site Method and subsystem are provided for generating a trajectory to be followed by a motor-driven stage when processing microstructures at a laser-processing site utilizing an estimated change in temperature of motors caused when the motors drive the stage a... | 12/17/2002 |
| 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 |
| 6489587 | Fabrication method of erbium-doped silicon nano-size dots An apparatus for fabricating silicon thin films for use in laser ablation includes a silicon substrate rotatably mounted in a process chamber maintaining a ultra high vacuum, pulsed light source means mounted outside the process chamber for emitting a pul... | 12/03/2002 |
| 6489586 | Method and apparatus for verification of assembled printed circuit boards An overlay device and a method for making an overlay device for verifying the correct placement of assembled components on a printed circuit board. The overlay device has laser-cut cutouts to assist users to more precisely verify the correct assembly of c... | 12/03/2002 |
| 6487460 | Laser marker A laser marker scanning laser beams to print a mark on an object includes a laser oscillator producing laser beams, an input device designating a mark to be printed, a galvanometer scanner successively receiving coordinate data corresponding to a predeter... | 11/26/2002 |
| 6483071 | Method and system for precisely positioning a waist of a material-processing laser beam to process microstructures within a laser-processing site A high-speed method and system for precisely positioning a waist of a material-processing laser beam to dynamically compensate for local variations in height of microstructures located on a plurality of objects spaced apart within a laser-processing site ... | 11/19/2002 |
| 6482763 | Suboxide fuel cell catalyst for enhanced reformate tolerance The present invention provides fuel cell electrode catalysts comprising alternating platinum-containing layers and layers containing suboxides of a second metal, where the catalyst demonstrates an early onset of CO oxidation. Preferred second metals are s... | 11/19/2002 |
| 6483075 | Three dimensional linear machining apparatus A first and a second long-length member holding means 13, 39 are provided, and the second long-length member holding means 39 is provided on the side of a machining head portion 32 rather than the first long-length member holding means 13. A through hole ... | 11/19/2002 |
| 6468356 | Method for removing molding residues in the fabrication of plastic packages for semiconductor devices A method for removing residues of molding material from metal parts of plastic packages of semiconductor devices includes applying first and second pulsed laser radiations to at least one surface region of a metal part covered with residues of molding mat... | 10/22/2002 |
| 6465757 | Laser joining method and a device for joining different workpieces made of plastic or joining plastic to other materials A method and a device for laser joining of plastics or for joining plastics to other materials, which are brought into contact with pressure, with the workpiece closest to the laser beam source being largely transparent for the laser beam, and the second ... | 10/15/2002 |
| 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 |
| 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 |
| 6462301 | Heavy-duty plate laser with linear motors for X and Y position control A heavy-duty laser plate cutting machine capable of cutting heavy plate but which can also operate on lighter sheet metal at commercial production rates. The machine includes a laser source having an output power of 3 kilowatts or more. The machine is pre... | 10/08/2002 |
| 6459951 | Direct laser additive fabrication system with image feedback control A closed-loop, feedback-controlled direct laser fabrication system is disclosed. The feedback refers to the actual growth conditions obtained by real-time analysis of thermal radiation images. The resulting system can fabricate components with severalfold... | 10/01/2002 |
