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| Number | Title | Issue Date |
| 7615721 | Laser processing method and laser processing apparatus A laser beam machining method and a laser beam machining device capable of cutting a work without producing a fusing and a cracking out of a predetermined cutting line on the surface of the work, wherein a pulse laser beam is radiated on the predetermined cut line o... | 11/10/2009 |
| 7560658 | Method for forming nanoscale features Here is presented a versatile technique for machining of nanometer-scale features using tightly-focused ultrashort laser pulses. By the invention, the size of features can be reduced far below the wavelength of light, thus enabling nanomachining of a wide range of m... | 07/14/2009 |
| 7557325 | Method for manufacturing a medical needle The present invention concerns a method for manufacturing a needle, of the type used in the medical field. This needle is formed by a pulsed laser weld for joining a first portion having a pointed end and a second end having the shape of a tube and for receiving, in... | 07/07/2009 |
| 7521648 | Apparatus and method of maintaining a generally constant focusing spot size at different average laser power densities Preferred embodiments of a system and methods to deliver different magnitudes of laser power density to a work piece while maintaining a constant focusing spot size are described. In particular, the system includes a laser, an optical focusing assembly and an overla... | 04/21/2009 |
| 7518086 | Method and device for adjusting wavelength distribution pattern in laser A plurality of configurations is simultaneously formed in a material by a single laser beam having a desired distribution pattern of wavelengths. An input laser beam has an initial wavelength distribution pattern. The initial wavelength distribution pattern is adjus... | 04/14/2009 |
| 7511247 | Method of controlling hole shape during ultrafast laser machining by manipulating beam polarization A method for controlling the shape of the area machined by a pulse of laser light on a surface, such that the shape has a desired elliptical shape with its major axis aligned in a desired direction and the length of this major axis is less than or equal to a diamete... | 03/31/2009 |
| 7491909 | Pulsed laser processing with controlled thermal and physical alterations A method for laser machining of material using a burst comprised of laser pulses. The method tailors the pulse width, pulse separation duration, wavelength and polarization of the multiple laser pulses included in a burst to maximize the positive effect of thermal a... | 02/17/2009 |
| 7421314 | Method and device for controlling robot A method for controlling a robot during an interpolation of a trajectory or motion to any prescribed position, comprises the steps of a) ignoring at least one of the three originally prescribed or interpolated tool center point orientation values; b) finding new too... | 09/02/2008 |
| 7372878 | Method and system for preventing excessive energy build-up in a laser cavity A method and system decrease the amount of undesired laser radiation reaching a workpiece from a laser having a laser cavity and a Q-switch. The laser operates at any given time in one of at least two modes. In a first mode the laser emits pulses at a PRF (pulse rep... | 05/13/2008 |
| 7359412 | Laser apparatus, laser irradiation method, and manufacturing method of semiconductor device It is an object to provide a laser apparatus, a laser irradiating method and a manufacturing method of a semiconductor device that make laser energy more stable. To attain the object, a part of laser beam emitted from an oscillator is sampled to generate an electric... | 04/15/2008 |
| 7352784 | Laser burst boosting method and apparatus Methods and apparatus for managing thermal loads on a laser gain medium and for boosting the output power of a diode pumped laser are disclosed. The short-term average pumping power to the gain medium is increased, to provide a burst of pumping energy to the laser g... | 04/01/2008 |
| 7348516 | Methods of and laser systems for link processing using laser pulses with specially tailored power profiles A laser pulse with a specially tailored temporal power profile, instead of a conventional temporal shape or substantially square shape, severs an IC link. The specially tailored laser pulse preferably has either an overshoot at the beginning of the laser pulse or a ... | 03/25/2008 |
| 7336585 | Information recording apparatus and method for recording information and information recording medium An information recording apparatus for recording tracks includes: a rotation drive section (RDS) that supports and rotates a master disk with a resist layer; an exposure beam emitting section (EBES) deflectably applying an exposure beam to the disk to form a spot th... | 02/26/2008 |
| 7330774 | Reception system An operation control unit of a reception system includes a visitor ID information DB for storing therein visitor comparison information and visitor ID information including a phone number of a receiver of a visitor; an identifying unit for identifying the visitor wh... | 02/12/2008 |
| 7326876 | Sequential lateral solidification device A sequential lateral solidification device, for enhancing optical characteristics of the device and for preventing damage caused by an ablation of a crystallization thin film, is disclosed. The device includes a laser light source generating a laser beam, a projecti... | 02/05/2008 |
| 7321808 | Robot and multiple robot control method When braking of a motion of a part of a first robot is assumed to be started at points in time, a first stop position of the first robot part is estimated at each point in time. When braking of a motion of a part of a second robot is assumed to be started at the poi... | 01/22/2008 |
| 7317179 | Systems and methods to shape laser light as a homogeneous line beam for interaction with a film deposited on a substrate Systems and methods are disclosed for shaping and homogenizing a laser beam for interaction with a film. The shaping and homogenizing system may include a lens array and a lens that is positioned to receive laser light from the lens array and produce a respective el... | 01/08/2008 |
| 7304265 | Method and system for machining fragile material In a method for processing brittle material, a laser light from a laser light source irradiates the brittle material and transports an irradiating position of the laser light along a predetermined line, wherein the laser light L from a plurality of laser light sourc... | 12/04/2007 |
| 7301981 | Methods for synchronized pulse shape tailoring A plurality of subresonators (12, 14), having different design configurations, share a common resonator section (18) such that the lasing action can be substantially synchronized to provide coherent laser pulses that merge the different respective puls... | 11/27/2007 |
| 7302309 | Laser micromachining methods and systems A method of laser machining a fluid path is provided. The method comprises directing a first laser toward a first surface, directing a second laser toward a second surface of the substrate, and directing a third laser toward the second surface along at least a porti... | 11/27/2007 |
| 7301121 | Method and device for laser drilling in a process gas atmosphere A method and device for laser drilling in which the geometric form of the drill-hole wall is influenced by reciprocal action between a laser beam and a supplied process gas, which thereby is ionized to plasma. Furthermore, the outlet opening of the drill hole is inf... | 11/27/2007 |
| 7292616 | COlaser stabilization systems and methods Systems and methods for stabilizing a CO2 laser are disclosed. The system includes a detector unit for measuring the power in a select portion of the output beam. The detector unit generates an electrical signal corresponding to the measured power. The mo... | 11/06/2007 |
| 7291806 | Robot laser processing system A robot laser processing system (10) comprises at least one robot controller (14) for controlling at least one robot, a host controller (12) connected to the robot controller through a first network (11) for overall control of the robot c... | 11/06/2007 |
| 7289549 | Lasers for synchronized pulse shape tailoring A plurality of subresonators (12, 14), having different design configurations, share a common resonator section (18) such that the lasing action can be substantially synchronized to provide coherent laser pulses that merge the different respective puls... | 10/30/2007 |
| 7286582 | Optical external cavities having brewster angle wedges This invention consists of an optical external cavity having specialized Brewster angle wedges. The external cavity apparatus utilizes several types of very high index of refraction wedges made from semiconductor and special glass materials. The apparatus limits the... | 10/23/2007 |
| 7282666 | Method and apparatus to increase throughput of processing using pulsed radiation sources A material processing system and method is disclosed for processing materials such as amorphous silicon in an annealing processes and lithography processes on a silicon wafer, as well as ablation processes. A first laser generates periodic pulses of radiation along ... | 10/16/2007 |
| 7283892 | Hybrid compact sensing apparatus for adaptive robotic processes A hybrid compact sensing apparatus for generating signals usable for guiding a process robot as a function of an object detected in a scene. The apparatus comprises a laser light generator, two optical sensors, one or more ultrasound sensors, and a control unit, all... | 10/16/2007 |
| 7277188 | Systems and methods for implementing an interaction between a laser shaped as a line beam and a film deposited on a substrate Systems and methods are disclosed for focusing a beam for an interaction with a film deposited on a substrate wherein the focused beam defines a short axis and a long axis. In one aspect, the system may include a detecting system to analyze light reflected from the ... | 10/02/2007 |
| 7268315 | Monitoring slot formation in substrates A light beam is used to cut a slot in a first side of substrate. An optical sensor monitors a surface of a second side of the substrate that is opposite the first side while cutting the slot. If the light beam breaks through the surface of the second side, the senso... | 09/11/2007 |
| 7268316 | Method for cleaning a resonator A method for cleaning a resonator in an oscillator, a laser being first used for the adjustment of the resonator, in that, using the laser, a dielectric material of the resonator is removed until a specified frequency is attained; the resonator being cleaned using t... | 09/11/2007 |
| 7257136 | Laser apparatus A laser apparatus (100) for performing the laser machining operation by condensing the laser light output from a laser oscillator (3) is disclosed. A laser output value calculation unit calculates a laser output value (L1) based on a command val... | 08/14/2007 |
| 7254147 | Laser control method, laser apparatus, laser treatment method used for the same, laser treatment apparatus A laser controlling method can generate laser of stable laser pulses, and eliminate useless time from a machining procedure. The method uses a gain medium and a Q-switch, and emits exciting light to the gain medium, thereby setting the Q-switch in a continuous oscil... | 08/07/2007 |
| 7238543 | Methods for marking a bare semiconductor die including applying a tape having energy-markable properties A method used for marking a semiconductor wafer or device. The method and apparatus have particular application to wafers or devices which have been subjected to a thinning process, including backgrinding in particular. The present method comprises reducing the cros... | 07/03/2007 |
| 7230964 | Lithography laser with beam delivery and beam pointing control The present invention provides a modular high repetition rate ultraviolet gas discharge laser light source with a beam delivery to a production line machine. The system includes an enclosed and purged beam path with beam pointing control for delivery the laser beam ... | 06/12/2007 |
| 7205501 | Laser machining method and laser machining apparatus A laser machining method and a laser machining apparatus superior in hole position accuracy and hole quality. An outgoing beam outputted as short pulses is shaped by a pulse shaping unit so as to form a #1 branch beam. The #1 branch beam is supplied to a portion to ... | 04/17/2007 |
| 7198961 | Method for modifying existing micro-and nano-structures using a near-field scanning optical microscope A method for manufacturing a microstructure, which includes at least one fine feature on an existing feature, using an NSOM laser micromachining system. A microstructure device preform is provided. A portion of its top surface is profiled with the NSOM to produce a ... | 04/03/2007 |
| 7187110 | Spark plug In a first embodiment a spark plug satisfying the relations: t≧0.3 mm and St/Sw≦7 in which t is the axial-direction shortest distance between a leading end surface 41a of a precious metal tip 41 and a joint portion 43, St is the surfa... | 03/06/2007 |
| 7186108 | Curing unit for dental materials A curing apparatus wherein rapid curing is provided by using light, pressure, pressure and light, or purge, pressure and light to cure resinous materials by application of energy from an external source to excite polymerization in a polymerizable system. An air-tigh... | 03/06/2007 |
| 7180918 | Self-seeded single-frequency solid-state ring laser and system using same A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain me... | 02/20/2007 |
| 7173212 | Method and apparatus for laser cutting and drilling of semiconductor materials and glass A method for laser drilling and laser cutting of semiconductor material or glass in pulsed regime permits, for a given laser power, a rate of material cutting which is substantially higher than the rate obtained using conventional laser cutting. The hole or cut prod... | 02/06/2007 |