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| Number | Title | Issue Date |
| 6248973 | Laser marking method for semiconductor wafer In a laser marking method for making a dot mark on a semiconductor wafer by using laser beam, molten splashes which arise at the laser marking are prevented from adhering to a surface of the wafer and a shape of the dot mark is kept in a stable posture wi... | 06/19/2001 |
| 6246026 | Process for cutting an optical fiber A process for cutting or splitting at least one optical fiber at a predetermined angle, wherein the fiber is introduced into a holding and positioning device and is cut by a pulsed laser beam.... | 06/12/2001 |
| 6236016 | Oblique angle laser shock processing The invention relates to 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 r... | 05/22/2001 |
| 6215097 | On the fly laser shock peening An on the fly method of laser shock peening a gas turbine engine part by continuously moving a metallic gas turbine engine part while continuously firing a stationary laser beam, which repeatably pulses between relatively constant periods, on a portion of... | 04/10/2001 |
| 6215093 | Selective laser sintering at melting temperature A method is disclosed for manufacturing a molded body, in accordance with three-dimensional CAD data of a model of a molded body, by depositing layers of a metallic material in powder form. Several layers of powder are successively deposited one on top of... | 04/10/2001 |
| 6211093 | 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... | 04/03/2001 |
| 6211487 | Printed circuit board and method of manufacturing the same A printed circuit board includes an uncured substrate material with closed voids which are disposed with a through-hole. When the through-hole is formed, voids which exist in the substrate material open from inner wall of the through-hole to form a hollow... | 04/03/2001 |
| 6203633 | Laser peening at elevated temperatures A method of altering the properties of a solid material by varying the temperature of the solid material either before or after or both before and after laser shock processing the solid material. In addition, the method may be repeated for successive lase... | 03/20/2001 |
| 6201215 | Method of making a thick film low value high frequency inductor A thick film low value high frequency inductor made by the process of subjecting a conductor layer to a plurality of linear cuts by a pulsing laser cutter imposed simultaneously on the entire length of the linear cut being made to create a cross sectional... | 03/13/2001 |
| 6188041 | Method and apparatus for real-time weld process monitoring in a pulsed laser welding A method and apparatus for real-time weld process monitoring are provided for a pulsed laser welding. The thermal radiation from a weld pool is measured at several spectral bands through an aperture with single-element detectors after splitting the spectr... | 02/13/2001 |
| 6178852 | Rotary die laser machining and hardening apparatus and method A pair of rotary die cylinders having co-acting cutting blades formed by integral lands projecting generally radially outwardly from the main body of each cylinder and a method of making them by rough machining a tool steel workpiece with conventional cut... | 01/30/2001 |
| 6177151 | Matrix assisted pulsed laser evaporation direct write An device for depositing a transfer material onto a receiving substrate includes a source of pulsed laser energy, a receiving substrate, and a target substrate. The target substrate comprises a laser transparent support having a back surface and a front s... | 01/23/2001 |
| 6173886 | Method for joining dissimilar metals or alloys The present invention relates to an improved method for joining metals or alloys together. Specifically, the present invention relates to a method comprising the laser alloying of a first metal/alloy piece so that it can be joined with a second metal/allo... | 01/16/2001 |
| 6172327 | Method for laser twist welding of compressor blisk airfoils A method for repair welding a titanium compressor blisk using laser twist welding. A blisk assembly has damaged portions removed. The surface to be repaired is provided with a predetermined geometry. The portions to be repaired are surrounded by a fixture... | 01/09/2001 |
| 6160240 | Method of producing microstructural medical implants In a method of producing microstructural medical implants by laser material processing, it is provided to make use of a tunable laser beam of a pulse length in the order of magnitude of femtoseconds, and of a laser irradin that is variable in its frequ... | 12/12/2000 |
| 6149988 | Method and system of laser processing A method for treating an object with a laser including emitting a laser beam from a laser; expanding the laser beam in a first direction; removing a portion of the laser beam though a mask, the portion including at least edges of the expanded laser beam e... | 11/21/2000 |
| 6146813 | Method and shunting and deshunting an electrical component and a shuntable/shunted electrical component The present invention provides a method for the creation and removal of shunts for the prevention of ESD/EOS damage to electrical components. In one embodiment of the present invention, the conductive pathway is provided and removed by exposing the interc... | 11/14/2000 |
| 6144012 | Efficient laser peening A method of laser shock peening a workpiece including the steps of laser shock peening at least one surface of the workpiece so that it extends over an area of the workpiece and forms a region having compressive residual stresses imparted by the laser sho... | 11/07/2000 |
| 6144009 | Combination punch press and laser machine A combination punch press and laser machine has its punch press system and worktable mounted to one frame while its laser system mounted to another frame. The two frames are not in contact with each other, but are positioned such that a cantilever member ... | 11/07/2000 |
| 6140606 | Laser cutting system A laser cutting system has a specially designed frame that allows the laser cutting head to be mounted to the underside of a cross beam for a more efficient movement. The frame is further designed so as to allow the accessing of the work area of the laser... | 10/31/2000 |
| 6139049 | Air bag tear seam and method of manufacture A method for manufacture an air bag cover includes providing a cover skin made of a polymeric material and weakening a seam region in the skin by selective exposure to ultraviolet light.... | 10/31/2000 |
| 6130401 | Device and method for machining transparent medium by laser Transparent media having high hardness and poor light absorption is cut or scribed with characters or figures by a laser beam. The method includes forming a support of a medium which is a good absorber of a laser beam, and placing the transparent medium o... | 10/10/2000 |
| 6130400 | Ballistic momentum apparatus and method for monitoring and controlling laser shock peening A method for quality assurance of a laser process and, more particularly, a laser shock peening process that uses a ballistic momentum apparatus for maintaining quality control of a laser shock peening process that uses a laser includes a movable target m... | 10/10/2000 |
| 6113707 | Method and apparatus for cleaning vulcanization molds for elastomer material articles In a vulcanization mold (2) for vehicle tires the rubber blend deposits are cleaned off by the action of one or more laser beams (9) supplied in the form of short-duration and high-energy pulses, which beams cause separation of the rubber blend by effect ... | 09/05/2000 |
| 6114652 | Method of forming acoustic attenuation chambers using laser processing of multi-layered polymer films A method of forming an acoustic attenuation chambers within a honeycomb core. The honeycomb core have a plurality of honeycomb cells having interconnected side walls. A plurality of septum layers are spaced from one another within the honeycomb cells to d... | 09/05/2000 |
| 6111213 | Welding fittings on a hydraulic cylinder A fitting is mounted on a hydraulic cylinder tube having a cylindrical outer surface by first positioning the fitting against the surface of the tube with the fitting engaging the surface along an arcuate contact line and then directing a laser beam at th... | 08/29/2000 |
| 6103993 | Hollow rotor blade of columnar structure having a single crystal column in which a series of holes are laser drilled A hollow structural part having an internal hollow space, preferably a blade for a turbodrive, is made of a metal alloy with a columnar structure solidified in an oriented manner with longitudinally extending grain boundaries. A series of holes are laser ... | 08/15/2000 |
| 6087621 | Method for laser hammering a multi-channel optoelectronic device module A method for correcting or hammering a deformation which occurs in the multi-channel optoelectronic module and is caused by a post welding shift. The multi-channel optoelectronic module has an optical fiber support member for supporting an optical fiber a... | 07/11/2000 |
| 6087622 | Low cost assembly of wireless load beam suspensions Assembly of wireless conductors onto load beams by putting up the wireless conductors in a pattern that is a multiple of the number of load beams on a fret, and indexing the pattern of wireless conductors corresponding multiple times for a succession of l... | 07/11/2000 |
| 6078022 | Laser peening hollow core gas turbine engine blades A hollow workpiece includes an outside surface through which a port opens to the hollow interior, and a laser peened area on the surface of the workpiece. The laser peened area is created on the surface while the hollow interior is at least partially fill... | 06/20/2000 |
| 6075223 | High contrast surface marking A method of laser marking metals, plastics, ceramic materials, glazes, glass ceramics, and glasses of any desired form, which comprises applying to the material to be marked a variable thickness layer of marking material containing energy absorbing enhanc... | 06/13/2000 |
| 6075221 | Mechanism and method of making anti-slip handles The method and mechanism of making an anti-slip handle having a gripping portion in which a plurality of grooves are formed in the gripping portion of the handle with the first set of grooves formed in one direction and the second set of grooves formed in... | 06/13/2000 |
| 6073464 | Laser surface treatment device and method A laser surface method involves applying a laser beam treatment in one or several steps to a series of generally similar surfaces of given depth. Properties of the laser treatment are selected so as to change the physical state of each surface. Ellipsomet... | 06/13/2000 |
| 6072150 | Apparatus and method for in-line soldering An apparatus and method for thermal processing of a workpiece in an assembly line. The workpiece is carried by a conveyor into a target zone, where one or more optical systems aim multiple radiation beams of a first wavelength at selected locations on the... | 06/06/2000 |
| 6072151 | Method for adjusting head suspension load A method for adjusting the load of a head suspension for supporting a read/write head over a disk in a magnetic disk drive. The suspension includes a load beam having a rigid region and proximal and distal ends, with a base on the proximal end and a flexu... | 06/06/2000 |
| 6068966 | Method for printing bar-codes The bar-code printing method of the present invention comprises a step of irradiating the circumferential surface of a metal tube with laser beams so as to make at least one group of thin elementary lines arranged in parallel with each other at intervals.... | 05/30/2000 |
| 6062590 | Air bag tear seam and method of manufacture An air bag cover (14) for use in a supplement inflatable restraint system includes an air bag cover skin made of a polymeric material. The cover skin includes a weakened tear seam region (16) for guiding the tearing of the air bag cover skin in response t... | 05/16/2000 |
| 6064034 | Laser marking process for vitrification of bricks and other vitrescent objects A laser marking system for vitrification of a brick, tile, paver, or pot. A laser such as a continuous wave Nd:Yag or carbon dioxide unit is configured for optimized vitrescence of an object placed in the path of the beam. The beam is steered via computer... | 05/16/2000 |
| 6049058 | Laser peening process and apparatus with uniform pressure pulse confinement A method and apparatus for improving properties of a solid material by providing shock waves therethrough. Laser shock processing is used to provide the shock waves. The method includes applying a transparent overlay to the solid material to be worked. Th... | 04/11/2000 |
| 6049056 | Method of laser cutting a metal line on an MR head with a laser A thin film conductive line is formed between MR pads on an MR head for protecting an MR sensor from electrostatic discharge (ESD) during assembly steps between row level fabrication of the head and prior to merge of a head stack assembly with a disk stac... | 04/11/2000 |
