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| Number | Title | Issue Date |
| 5298719 | Laser beam heating method and apparatus A method and apparatus for concentrating the heat energy of a laser beam by directing the laser beam to an optical device, such as a planar mirror, located at a first focal point of a reflector having a curved surface approximating that of an ellipsoid. T... | 03/29/1994 |
| 5284477 | Device for correcting the shape of an object by laser treatment The invention concerns a device for correcting the shape of an object by laser treatment. The device comprises means (1) for emitting a laser beam (FL) and means (2) for generating a treatment laser beam (FLT) comprising at least one lobe of elongate cros... | 02/08/1994 |
| 5281294 | Manufacture of visual lenses A consumable laser mask for forming a visual lens, especially a contact lens, in which at least a portion of the light passing through the lens is focussed by diffractive means. The laser mask is shaped to provide the diffractive means in the finished len... | 01/25/1994 |
| 5266769 | Process for independent control of crown and camber for magnetic head slider A method for making a magnetic head slider comprising the steps of lapping the slider to form an air bearing surface, producing a chosen pattern of rails on the air bearing surface, and producing a chosen pattern of stress on the back side of the slider t... | 11/30/1993 |
| 5232674 | Method of improving surface morphology of laser irradiated surface A method of improving surface morphology of a laser irradiated surface includes a first step of irradiating a pulse laser beam one or a plurality of times on a region of a conductor layer which is formed on an under layer so as to melt the entire conducto... | 08/03/1993 |
| 5231263 | Liquid crystal mask type laser marking system Disclosed is a liquid crystal mask type laser marking system for transferring a pattern information onto an object to be worked. A laser beam emitted from a laser oscillator is applied to a liquid crystal mask having a pattern mask. The laser beam outgoin... | 07/27/1993 |
| 5227607 | Yag laser working machine for precision working of thin-film This invention relates to a YAG laser working machine, and an object thereof is to enable highly precise processing such as one required for processing of a photomask which is used at, for example, a step of manufacturing semiconductors. The YAG laser wor... | 07/13/1993 |
| 5223693 | Optical machining apparatus An optical machining apparatus for irradiating light from a light source onto a source to be machined to form a grooves in the surface. The apparatus uses a mask disposed in the path of light from the light source. The mask includes reflective parts for r... | 06/29/1993 |
| 5208434 | Method and apparatus for laser heat treatment for metal wire A laser beam heat treatment for a metal wire has improved incidence and processing conditions so as to achieve efficient surface heat treatment with a circumferentially averaged laser beam flux and with remarkably enhanced fatigue strength in a high speed... | 05/04/1993 |
| 5192559 | Apparatus for building three-dimensional objects with sheets Systems for and methods of generating three-dimensional objects from a medium capable of selective physical transformation upon exposure to synergistic stimulation, whereby sheets of medium corresponding to cross-sectional layers of the three-dimensional ... | 03/09/1993 |
| 5183598 | Process of and apparatus for making three-dimensional objects Process for obtaining three-dimensional objects, according to which process a sheet (2A, 2B, 2C) is prepared, which sheet is composed of a material, the solubility of which varies when it is subjected to a specific radiation, and of fibers or of a screen ... | 02/02/1993 |
| 5181948 | Method and apparatus for forming micropipette of controlled configuration A micropipette puller of the type having a laser for heating a length of capillary to be pulled is shown. Before intercepting the capillary, the laser beam is first passed through an aperture to reduce the beam width to a desired size. In one embodiment t... | 01/26/1993 |
| 5173441 | Laser ablation deposition process for semiconductor manufacture A semiconductor manufacturing process for laser ablation deposition (LAD) in which metal features are written from a source substrate onto a target substrate. The source substrate and target substrate are mounted in close proximity to one another within a... | 12/22/1992 |
| 5149938 | Methods for producing indicia on diamonds A method of producing a marking on a diamond. For producing the marking, the region on the surface of the diamond which is to be marked is irradiated with an argon fluorine excimer laser whose output beam is passed through a mask which defines the marking... | 09/22/1992 |
| 5135695 | Positioning, focusing and monitoring of gas phase selective beam deposition A method and apparatus for selectively depositing a layer of material from a gas phase to produce a part comprising a plurality of deposited layers. The apparatus includes a computer controlling a directed energy beam, such as a laser, to direct the laser... | 08/04/1992 |
| 5136136 | Laser processing apparatus A laser processing apparatus including a laser oscillator, a beam expander, and a light converging system. An output-end-side optical component formed by the beam expander and the light converging system includes one light converging system having composi... | 08/04/1992 |
| 5109149 | Laser, direct-write integrated circuit production system A laser, direct-write system for making personalized custom or semi-custom integrated circuits with a very fast turnaround time. The system includes a method and apparatus for high percision scanning of a submicron laser spot. The laser beam is scanned at... | 04/28/1992 |
| 5068515 | Apparatus for homogenizing the non-homogeneous light distribution of a laser beam An apparatus for precise, homogeneous and sharp-edged irradiation of a large area with the light of a laser beam (5), which can be used especially for large-area photodynamic therapy, is provided with a multimode fibre (10), which is illuminated by the la... | 11/26/1991 |
| 5061840 | Manufacture of ophthalmic lenses by excimer laser Complex small objects such as ophthalmic lenses are quickly and accurately fabricated from plastic or glass blanks of ablatable material such as plastic or glass by cutting, shaping, and radiusing the blank entirely by laser light, using appropriate masks... | 10/29/1991 |
| 5053171 | Manufacture of ophthalmic lenses by excimer laser Complex small objects such as ophthalmic lenses are quickly and accurately fabricated from plastic or glass blanks of ablatable material such as plastic or glass by cutting, shaping, and radiusing the blank entirely by laser light, using appropriate masks... | 10/01/1991 |
| 5038016 | Laser welding monitoring system and method A laser welding, monitoring system comprising a laser welding beam energy source and means for directing laser beam energy from said source and on to a concentrated laser weld spot on the workpiece to be welded shaped or cut by laser energy. A laser probe... | 08/06/1991 |
| 5019074 | Laser reprofiling system employing an erodable mask A laser system for reprofiling a surface comprising a laser and an erodable mask disposed between the laser means and the surface for providing a predefined profile of resistance to erosion by laser radiation, and control for controlling the laser such th... | 05/28/1991 |
| 5014207 | Solid imaging system In a solid imaging system, the beam of a relatively high-powered beam radiation source, and more particularly a laser, is modulated in accordance with its varying vector sweep speed so that substantially constant layer depth is maintained at all scanner s... | 05/07/1991 |
| 5007686 | Process for rounding bristle tips on brushes Controlled melting of the tips of bristles is achieved by simple means using a pulsed laser beam operating in the kilowatt range and having a pulse duration in the microsecond range.... | 04/16/1991 |
| 4994058 | Surface shaping using lasers A laser system and masking apparatus for reprofiling surfaces, such as corneal surfaces. The system includes a laser and a mask disposed between the laser and the surface to be reprofiled, the mask providing a pre-defined profile of resistance to laser ra... | 02/19/1991 |
| 4968868 | Projection exposure system A projection exposure system is disclosed, which includes: a laser; a mask stage for supporting a photomask; a wafer stage for supporting a wafer; an illumination optical system effective to illuminate the photomask by use of a light from the laser; a pro... | 11/06/1990 |
| 4942000 | Contactless knurling process for winding of high modulus thermoplastic films A contactless method for knurling thermoplastic film to improve its winding characteristics is disclosed. A preferred embodiment employs an ink jet printer to intermittently deposit ink upon at least one margin of the moving film surface. A second preferr... | 07/17/1990 |
| 4932989 | Method and apparatus for fabricating microlenses on optical fibers This invention concerns with a process and apparatus for fabricating microlenses on optical fibers. A pulsed laser beam and an end portion of a fiber are arranged relative to each to another so that the laser beam is incident on the end portion of the fib... | 06/12/1990 |
| 4912298 | Method for producing a marking on a spectacle lens A method of producing a marking on a spectacle lens. For producing the marking, those regions on the surface of the spectacle lens which are to define the form of the marking are irradiated with an excimer laser through a mask which contains the marking i... | 03/27/1990 |
| 4861964 | Laser scribing system and method A laser scribing system and method is described. In the system, a film formed on a substrate is irradiated with laser beam which is focused on a limited portion of the film in order to remove the portion and produce a groove. Laser beam used for eliminati... | 08/29/1989 |
| 4850089 | Surface treatment of a rolling mill roll The surface of a rolling mill roll is coated with a coating comprising a metallic substance and is then marked by means of an intermittent laser beam. As a result, micro-craters are formed which penetrate the roll and which have rims containing components... | 07/25/1989 |
| 4843209 | Method and apparatus for laser staking Method and apparatus for manual or semiautomatic computer controlled laser staking of a haptic to an optic of an intraocular lens. An Nd:YAG laser with a HeNe laser aiming beam provides laser power to a fiber optic multiplexer to deliver laser energy to a... | 06/27/1989 |
| 4842782 | Manufacture of ophthalmic lenses by excimer laser Complex small objects such as ophthalmic lenses are quickly and accurately fabricated from plastic or glass blanks of ablatable material such as plastic or glass by cutting, shaping, and radiusing the blank entirely by laser light, using appropriate masks... | 06/27/1989 |
| 4822974 | Laser hold drilling system with lens and two wedge prisms including axial displacement of at least one prism A system for drilling or cutting holes with a laser provides for independent control of the beam angle and displacement from the system axis, thereby making it possible to cut truly cylindrical holes.... | 04/18/1989 |
| 4800179 | Method for fabricating semiconductor device A method for fabricating a semiconductor device comprises forming a contact hole in an insulating film formed on a first wiring composed of an Al film, covering the insulating film with an Al film for a second wiring, applying laser beam pulses to the Al ... | 01/24/1989 |
| 4782787 | Apparatus for laser-induced chemical vapor deposition An apparatus wherein a beam of substantially coherent light passes through a window in a chamber and then through the chamber in a direction substantially parallel, and contiguous, to substrates in the chamber. The beam ionizes gases in a mixture in the c... | 11/08/1988 |
| 4781753 | Process for producing fine spherical particles from non-flowing powders A process is disclosed for producing fine spherical powder particles. The process involves forming a relatively uniform admixture of a starting powder material and a flowability aid, the flowability aid being non-reactive with and coarser than the startin... | 11/01/1988 |
| 4762373 | Process for rounding the bristle tips of toothbrushes and toothbrushes prepared by this process The present invention relates to a method for rounding the bristle tips of toothbrushes by the action of laser radiation, characterized in that the rounding process is effected in an electrostatic field, thus avoiding the fusion of the individual bristles... | 08/09/1988 |
| 4752352 | Apparatus and method for forming an integral object from laminations An apparatus and method for forming an integral three-dimensional object from laminations of the same or gradually varying shape. The apparatus includes a supply station, a work station for forming a material into a plurality of laminations for the three-... | 06/21/1988 |
| 4734550 | Laser processing method A laser processing method comprises the steps of generating a pulsed laser beam having a substantially circular shape; modifying the beam to a substantially rectangular shape; and scribing the surface of a workpiece with the rectangular beam to form groov... | 03/29/1988 |
