Using Laser Patents (Class 204/157.61)
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Patent number: 10874124Abstract: Methods for treating animal carcasses prior to processing for meat consumption include applying acoustic pressure shock waves to an animal carcass to reduce contaminants on the carcass for improved safety when distributed as meat.Type: GrantFiled: November 2, 2017Date of Patent: December 29, 2020Assignee: SANUWAVE, INC.Inventor: Iulian Cioanta
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Patent number: 10256005Abstract: Embodiments of the present disclosure relate to thermal processing of substrates. More specifically, embodiments described herein relate to flash on spike annealing processes and apparatus suitable for performing such processes. In one embodiment, a thermal processing apparatus may include a lamp radiation source, a laser source, and a reflector plate disposed between the lamp radiation source and the laser source. One or more apertures may be formed in the reflector plate and the laser source may be positioned adjacent to the reflector plate such that a laser beam emitted from the laser source propagates through the one or more apertures. In one embodiment, the reflector plate may be substantially circular and the one or more apertures may approximate a sector of the reflector plate.Type: GrantFiled: July 19, 2016Date of Patent: April 9, 2019Assignee: APPLIED MATERIALS, INC.Inventors: Joseph M. Ranish, Shashank Sharma, Diwakar N. Kedlaya, Aaron Muir Hunter
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Patent number: 10137310Abstract: An optical cosmetic device for body hair includes an optical system that emits cosmetic light for body hair. The optical system includes a light source, a control unit that controls at least one of a voltage and a current supplied to the light source, and an optical filter that changes a spectrum of light emitted from the light source. An intensity integral of the cosmetic light for body hair in a wavelength range of 400 to 700 nm is larger than that in a wavelength range of 700 to 1200 nm. An intensity integral of the cosmetic light for body hair in a wavelength range of 400 to 500 nm is smaller than that in a wavelength range of 500 to 600 nm. The largest one of intensity peaks of the cosmetic light for body hair is in a wavelength range of 400 to 570 nm.Type: GrantFiled: January 10, 2014Date of Patent: November 27, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masato Kinoshita, Kaori Suzuki
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Patent number: 9988272Abstract: Disclosed herein is a process for the synthesis of carbon and carbon based nanocomposites comprising Laser-induced Dissociative Stitching (LDS) from liquid halogen containing aromatic compounds at room temperature.Type: GrantFiled: October 12, 2012Date of Patent: June 5, 2018Assignee: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCHInventors: Rohan Rajeev Gokhale, Satishchandra Balkrishna Ogale
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Patent number: 9623138Abstract: Implementations disclosed herein provide systems and methods of automatically sterilizing a portable electronic device with ultraviolet (UV) radiation. In one implementation, the method includes distributing UV light substantially uniformly across an intended surface of a device in an enclosure, and sterilizing the intended surface using a calculated dosage of the UV light. In another implementation, an electronic device sterilization system includes an enclosure configured to selectively receive a device for sterilization using a calculated dosage of light, wherein the enclosure includes one or more LEDs, a first reflector configured to receive and reflect the light from the LEDs, and a second reflector configured to receive the light reflected from the first reflector and distribute the light uniformly onto an intended planar surface of the device.Type: GrantFiled: August 17, 2015Date of Patent: April 18, 2017Assignees: Lifeloc Technologies, Inc., AquiSense Technologies LLCInventors: Jennifer Godwin Pagan, Edward Brittain Stokes, John Robert Krause, Paolo Batoni, Gurumurthi Ravishankar, Kelly Silverman
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Patent number: 9346565Abstract: A nuclear thermal propulsion rocket engine. A reactor is provided to receive a fissionable fuel and a propellant fluid. Fuel may be transported and injected using a carrier fluid. Carrier fluid for fuel may be hydrogen or an isotope thereof. Fuel may be plutonium or selected actinide. A neutron generator is provided, and utilizes an ion generator and a target container which extends into the reactor to hold a target material therein. Neutrons may be emitted almost omni-directionally by impact of ions from the ion generator on target material. Cooling of the target container may be provided by a cooling sleeve that receives and circulates a cooling fluid, and discharges the cooling fluid after it has been heated. Fuel injectors provide fuel through fuel injector valves regulated to cycle on and off to pulse output power of the rocket engine, by timing frequency and duration of fuel feed, and regulating injected fuel amounts, to regulate the energy released over discrete time periods.Type: GrantFiled: September 11, 2015Date of Patent: May 24, 2016Inventors: Richard Hardy, Jonathan Hardy
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Publication number: 20140367245Abstract: An invention is provided for molecular excitation via monochromatic light at a particular wavelength. The invention includes providing a chemical to an illumination chamber, and illuminating the chemical with monochromatic light of a predefined wavelength. As a result, the chemical is placed in an excitation state that results in the molecules of the chemical being more likely to react with other molecules. Thereafter the chemical is provided to a reaction chamber, wherein the molecules of the chemical bond with other molecules in a predefined manner.Type: ApplicationFiled: June 11, 2014Publication date: December 18, 2014Inventor: Roger R. Dube
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Publication number: 20140238842Abstract: Disclosed herein is a process for the synthesis of carbon and carbon based nanocomposites comprising Laser-induced Dissociative Stitching (LDS) from liquid halogen containing aromatic compounds at room temperature.Type: ApplicationFiled: October 12, 2012Publication date: August 28, 2014Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCHInventors: Rohan Rajeev Gokhale, Satishchandra Balkrishna Ogale
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Publication number: 20130233700Abstract: The present invention generally relates to mass spectrometry and related techniques, and in some cases, to determining single species using mass spectrometry. In certain instances, polymers such as DNA or RNA can also be sequenced. Certain embodiments of the invention relate to passing a polymer, such as DNA, RNA, a protein, a polypeptide, a polysaccharide, etc., through a pore and cleaving the polymer in sequence. For instance, the polymer may be cleaved using a laser or an electric field. In some embodiments, a property of at least one subunit of a polymer is determined using mass spectrometry. In some embodiments, a single ion (which may be a subunit of a polymer, or an ion based on another species) can be isolated in a mass spectrometer and a signal generated from the single ion.Type: ApplicationFiled: March 21, 2013Publication date: September 12, 2013Applicant: Brown UniversityInventor: Derek M. Stein
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Patent number: 8518236Abstract: A method for improving the precision of electrochemical measurements made using an electrochemical cell is provided. The method comprises preconditioning a working electrode of the cell by (i) baking the working electrode; and/or (ii) incubating the working electrode; and/or (iii) applying a preconditioning potential across the cell; and/or (iv) treating the working electrode with a UV laser.Type: GrantFiled: June 28, 2006Date of Patent: August 27, 2013Assignee: Roche Diagnostics Operations, Inc.Inventors: Patricia Mary Elizabeth Roblin, Mark Hyland, Christopher Paul Newman
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Patent number: 8455590Abstract: It is an object to provide a film having both high transparency and high heat resistance, and particularly a coating solution for forming a coating film from which an optical film can be produced. A triaroylbenzene-skeleton polymer in which a terminal of a polymer produced by polymerizing a compound of Formula [1] below is modified by a compound of Formula [2] below. A coating solution for forming a coating film, comprising the polymer. A film obtained from the coating solution for forming a coating film. In the formulae below, X1 is a divalent group of Formula [1a], Formula [1b], or Formula [1c] below (where Y1 and Y2 are independently a C1-2 alkylene group; n is an integer of 1 to 6; and m is an integer of 1 to 6), X2 is divalent benzene, thiophene, furan, or fluorine, and X3 is a hydrogen atom, a halogen atom, CF3, a C1-6 alkoxy group, or a C1-6 alkyl group.Type: GrantFiled: October 2, 2009Date of Patent: June 4, 2013Assignee: Nissan Chemical Industries, Ltd.Inventor: Takuro Oda
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Patent number: 8323458Abstract: A process is disclosed for making a biomass susceptible to depolymerization or liquefaction under mild conditions. The process comprises introducing into the biomass a material susceptible to the absorption of electro-magnetic radiation to form a radiation absorbent biomass. The radiation absorbent biomass is subjected to electro-magnetic radiation to form an activated biomass.Type: GrantFiled: July 13, 2007Date of Patent: December 4, 2012Assignee: KiOR, Inc.Inventors: Paul O'Connor, Dennis Stamires
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Patent number: 8143465Abstract: The present invention relates to a novel process of preparing branched polymers by cyclotrimerization and branched organic materials containing triaroylbenzene moieties as base structural unit. The polymerization is a simple one-pot reaction, strictly regioselective and highly functionality-tolerant giving oligomeric and polymeric polymers with high degree of branching (up to 100%) in high yields (up to 99%). The polymers are processible, easily film-forming, transformable (curable) into thermosets by heat or irradiation, and readily crosslinkable by UV irradiation to give patterns with nanometer resolution. The polymers of the present invention can be blend with a variety of macromolecules for general use. The polymers can be metallified utilizing organometallic acetylene as building blocks and ceramization of the patterns of the obtained polymers afford ferromagnetic ceramic patterns with high resolution.Type: GrantFiled: May 2, 2006Date of Patent: March 27, 2012Assignee: The Hong Kong University of Science & TechnologyInventors: Ben Zhong Tang, Hongchen Dong, Anjun Qin, Matthias Haeussler
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Publication number: 20110318257Abstract: Graphene production using a continuous or pulsed laser beam focused on a substrate of graphite oxide in a significantly inert environment is disclosed. Laser-induced graphene features are characterized by a 2D-band in the Raman spectra. When the photons of the laser at a various frequencies and power levels beam impinge a graphite oxide foil for various amounts of time, a strip, divet, trench, or hole, having graphene at the bottom or sides is produced. The concentration of the graphite oxide and the laser beam may be adjusted so that the depth of the trench created is a certain depth less than the thickness of the foil. Additionally, in some embodiments, the evaporation of the water during the Hummers method is adjusted so that there remains interlaminar water in the graphite oxide foil. The presently disclosed subject matter may also be used in patterning using rastering or substrate motion.Type: ApplicationFiled: December 16, 2010Publication date: December 29, 2011Applicant: Georgia Tech Research CorporationInventors: Denis Aleksandrovich Sokolov, Kristin Rene Shepperd, Thomas Michael Orlando
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Publication number: 20110314840Abstract: This invention is comprised of the following innovations: various devices/instruments which may be used in the preparation of a compact monolayer [made up of a suitable organic material (or organic compound)] as well as the carbonization of the latter; efficient methods for preparing a compact monolayer which is free from all “other” materials that were used in the various processes involved in the said preparation of the said compact monolayer; various methods for carbonizing a compact monolayer by means of a suitable “heat source” (which allows the application of a sudden searing “heat” extremely quickly) in order to produce a graphene layer, where the said heat source may be a “hot surface” or a suitable “radiation type beam” such as a suitable laser beam, or a suitable maser beam, or a suitable electron beam; and finally, various methods to provide a protective layer for a graphene layer.Type: ApplicationFiled: June 2, 2011Publication date: December 29, 2011Inventor: Hamid-Reza Jahangiri-Famenini
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Publication number: 20110230684Abstract: The invention relates to a process and an apparatus for product-conserving thermal dissociation of halogenated aliphatic hydrocarbons, preferably for thermal dissociation of 1,2-dichloroethane to vinyl chloride. This uses chemical dissociation promoters and/or physical measures which initiate the dissociation reaction. The initiation of the dissociation reaction, with the same conversion, lowers the temperature level in the reaction mixture and the temperature of the dissociation gas on exit from the dissociation furnace. The amount and the exit temperature of the flue gas from the radiation zone of the dissociation furnace likewise decrease at the same time.Type: ApplicationFiled: September 3, 2009Publication date: September 22, 2011Inventors: Michael Benje, Peter Kammerhofer, Klaus Krejci, Rainer Kampschulte, Helmut Grumann
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Publication number: 20110204219Abstract: The present invention generally relates to mass spectrometry and related techniques, and in some cases, to determining single species using mass spectrometry. In certain instances, polymers such as DNA or RNA can also be sequenced. Certain embodiments of the invention relate to passing a polymer, such as DNA, RNA, a protein, a polypeptide, a polysaccharide, etc., through a pore and cleaving the polymer in sequence. For instance, the polymer may be cleaved using a laser or an electric field. In some embodiments, a property of at least one subunit of a polymer is determined using mass spectrometry. In some embodiments, a single ion (which may be a subunit of a polymer, or an ion based on another species) can be isolated in a mass spectrometer and a signal generated from the single ion.Type: ApplicationFiled: July 30, 2009Publication date: August 25, 2011Applicant: Brown UniversityInventor: Derek M. Stein
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Publication number: 20110083955Abstract: The present invention provides one-step processes for the production of chlorinated and/or fluorinated propenes. The processes provide good product yield with low, e.g., less than about 20%, or even less than 10%, concentrations of residues/by-products. Advantageously, the processes may be conducted at low temperatures than 500° C. so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.Type: ApplicationFiled: October 8, 2010Publication date: April 14, 2011Applicant: DOW GLOBAL TECHNOLOGIES, INCInventors: Max M. Tirtowidjojo, Debashis Chakraborty, Juergen Eiffler, Kurt F. Hirsekorn, William J. Kruper, JR.
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Patent number: 7871501Abstract: The laser-based method for removal of sulfur (DMDBT) in hydrocarbon fuels provides for deep desulfurization of hydrogen fuels through the elimination of dimethyldibenzothiophene (DMDBT) from hydrocarbon fuels. The method involves photoexciting atomic or molecular oxygen to a singlet or triplet energy state, mixing the photoexcited oxygen with the hydrocarbon fuel, and irradiating the hydrocarbon fuel with UV radiation from a tunable laser source at a wavelength corresponding to an absorption band of dimethyldibenzothiophene. The hydrocarbon fuel may be in a liquid or an aerosol state. The oxygen may be provided by pure oxygen gas, by N2O, or by air, and may be diluted by an inert carrier gas, such as N2. Exemplary wavelengths of the laser radiation include 193 nm, 248 nm, and 266 nm. Sulfur is eliminated from DMDBT as elemental sulfur or gaseous sulfides and sulfur oxides, which are easily separated from the hydrocarbon fuels.Type: GrantFiled: November 15, 2006Date of Patent: January 18, 2011Assignee: King Fahd University of Petroleum and MineralsInventors: Muhammed A. Gondal, Josef Pola, Zain H. Yamani, Husain M. Masoudi, Abdul R. A. Al-Arfaj
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Publication number: 20100294646Abstract: The present invention relates to a photocatalyst comprising a core part containing titanium dioxide, and a doped part formed on surfaces of said core part, containing a ruthenium-based dye and a platinum compound, a preparation method thereof, a photoreactor and a photolysis process. In accordance with the present invention, a photocatalyst having excellent light resistance and photosensitivity capable of removing volatile organic compounds even in poor ultraviolet light conditions, and a preparation method thereof is provided, and a photoreactor comprising said photocatalyst and an efficient photolysis process using the same are also provided.Type: ApplicationFiled: November 5, 2009Publication date: November 25, 2010Inventors: Moon-Sun KIM, Byung-Woo Kim, Ji-Sun Kim, Hong-Kwan Cho
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Publication number: 20100287826Abstract: A method of preparing cellulosic biomass material for subsequent processing first comprises moving at least one stream of biomass material along a flow path. Then, the stream of cellulosic biomass material can be explosively dried and pulverized to disrupt lignocellulosic bonds, and to reduce a moisture content and a particle size of the cellulosic biomass material. Then, the stream of cellulosic biomass material can be electrically degraded the stream of cellulosic biomass material to disrupt lignocellulosic bonds. Additional pre-treatment and post-treatment processes can also be included.Type: ApplicationFiled: July 31, 2008Publication date: November 18, 2010Inventors: Richard B. Hoffman, Frank S. Barnes
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Publication number: 20100140108Abstract: A method for improving the precision of electrochemical measurements made using an electrochemical cell is provided. The method comprises preconditioning a working electrode of the cell by (i) baking the working electrode; and/or (ii) incubating the working electrode; and/or (iii) applying a preconditioning potential across the cell; and/or (iv) treating the working electrode with a UV laser.Type: ApplicationFiled: June 28, 2006Publication date: June 10, 2010Inventors: Patricia Mary Elizabeth Roblin, Mark Hyland, Christopher Paul Newman
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Publication number: 20090138996Abstract: The present invention relates to a method for the production of tips, the order of magnitude of which lies in the micro- and/or nanometer range, comprising contacting a precursor material with a matrix and then energetically activating over a large area, wherein the precursor material contains an element other than carbon from the second to fifth main groups, the sixth main group with an atomic number Z?16 or a sub-group of the periodic table of the elements and organic groups which are chemically bonded to the respective element directly and/or via an element of the sixth main group.Type: ApplicationFiled: December 28, 2006Publication date: May 28, 2009Inventors: Jorn Volkher Wochnowski, Carsten Wochnowski, Dominique Pascal Eyidi, Jurgen Heck, Barbara Albert
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Publication number: 20090131710Abstract: The present invention provides stable non-crystalline aspirin that does not crystallize at room temperature during storage for prolonged periods of time and processes for obtaining the stable non-crystalline aspirin.Type: ApplicationFiled: October 16, 2008Publication date: May 21, 2009Inventors: Todd F. Ovokaitys, John Scott Strachan
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Patent number: 7452922Abstract: Polymer particles are irradiated with radiation from a high energy source to increase the water or other fluid absorbency of the particles. Products manufactured using the activated particles include protective undergarments, bandages, kitty litter, and spill clean up materials.Type: GrantFiled: February 8, 2007Date of Patent: November 18, 2008Assignee: Super Absorbent CompanyInventors: Phillip Berlin, Mark Sinkinson
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Publication number: 20080217159Abstract: A method for decomposing a target nucleic acid polymer, comprising: bonding a probe nucleic acid polymer and a microparticle to form a probe nucleic acid polymer-bonded microparticle, adding a target nucleic acid polymer to the probe nucleic acid polymer contained within the probe nucleic acid polymer-bonded microparticle to form an addition microparticle, and energizing the microparticle contained within the addition microparticle into a high-energy state and then using energy transfer from this high-energy state microparticle to decompose the target nucleic acid polymer.Type: ApplicationFiled: March 5, 2007Publication date: September 11, 2008Inventors: Yoshihiro Takeda, Fumitaka Mafune, Tamotsu Kondou
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Patent number: 7393437Abstract: A method for producing collagen-based scaffolds with improved characteristics, which broadens the usage of collagen in tissue engineering and the products so produced are described. The method comprises reconstitution of three-dimensional collagen matrices from collagen monomer solution and crosslinking the matrix with a light source in the presence of a photosensitizing reagent. The crosslinked products can be in any shape and form and used in the dry or wet state, for applications including but not limited to tissue engineering and controlled drug delivery.Type: GrantFiled: September 14, 2005Date of Patent: July 1, 2008Assignee: The University of Hong KongInventors: Barbara P Chan, Kwok Fai So
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Patent number: 7373254Abstract: The present invention relates to the process of selectively exposing matter to a specific wavelength of electromagnetic energy in sufficient flux density per wavelength to cause or promote a desired effect. The process includes, but is not limited to, destroying, disinfecting, denaturing, disinfesting, disrupting, or dehydration of one or more of the substances present. More specifically, present invention relates to subjecting matter, which may contain a mixture of substances, to electromagnetic energy, in concurrence with its spectral properties to exploit the spectral differences within the substance or within a mixture of substances. Energies are applied to cause wavelength-dependent reactions resulting from differential absorption; this additional applied energy manifests itself in changes, or quantum transitions, in the vibrational, rotational, magnetic, and electronic states of the molecules.Type: GrantFiled: May 3, 2002Date of Patent: May 13, 2008Assignee: Advanced Light Technology, LLCInventor: Brian N. Pierce
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Patent number: 7361696Abstract: A 1,4-di-substituted diacetylene polymer that is soluble in organic solvent, is composed of a repeating unit represented by the general formula ?CR—C?C—CR?? (wherein, R and R? represent identical or different monovalent organic substituents), and has an average degree of polymerization of 4 to 200 and a ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight corresponding to said average degree of polymerization (Mn) of 1.1 to 5.0, and a process for producing the 1,4-di-substituted diacetylene polymer by irradiating a solution of the soluble 1,4-di-substituted diacetylene polymer with laser light having a wavelength within the range of 250 to 1,200 nm, and preferably 550 to 900 nm, to cause a photodegradation reaction of said polymer, or heating a solution of the soluble 1,4-di-substituted diacetylene polymer to a temperature of 100 to 300° C.Type: GrantFiled: November 5, 2002Date of Patent: April 22, 2008Assignee: Japan Science and Technology CorporationInventors: Kenji Takeda, Makoto Gonokami
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Patent number: 7288287Abstract: The insulating layer formation step of forming an insulating layer 24-1 on a base for resin application 20 by applying polymeric material, which has been diluted with a solvent, filled with inorganic filler to the base for resin application and by drying the base for resin application; the circuit formation portion forming step of creating a circuit formation portion and a via hole 25 in insulating layer 24-1 that has been formed in the above described insulating layer formation step by means of a laser treatment; and the circuit formation step of forming a circuit 23-1 by plating the circuit formation portion and via hole 25 that have been created in the above described circuit formation portion forming step are provided and the insulating layer formation step, the circuit formation portion forming step and the circuit formation step are repeated a plurality of times in this order and, thereby, a circuit formation part (multi-layered substrate) is manufactured.Type: GrantFiled: March 2, 2001Date of Patent: October 30, 2007Assignee: Omron CorporationInventors: Hirokazu Tanaka, Satoshi Hirono
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Patent number: 7183336Abstract: Polymer particles are irradiated with radiation from a high energy source to increase the water or other fluid absorbency of the particles. Products manufactured using the activated particles include protective undergarments, bandages, kitty litter, and spill clean up materials.Type: GrantFiled: July 30, 2003Date of Patent: February 27, 2007Assignee: Super Absorbent CompanyInventors: Phillip Berlin, Mark Sinkinson
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Patent number: 7168266Abstract: Techniques for producing a glass structure having interconnected macroscopic pores, employing steps of filling polymerizable glass precursors into pores in a polymeric structure having interconnected macroscopic pores; polymerizing the precursors; and decomposing the polymers to produce a glass oxide structure having interconnected macroscopic pores. Further techniques employ steps of exposing portions of a photosensitive medium including glass precursors to an optical interference pattern; polymerizing or photodeprotecting the exposed portions and removing unpolymerized or deprotected portions; and decomposing the polymerized or deprotected portions to produce a glass structure having interconnected macroscopic pores. Techniques for filling pores of such glass structure with a material having a high refractive index, and for then removing the glass structure.Type: GrantFiled: March 6, 2003Date of Patent: January 30, 2007Assignee: Lucent Technologies Inc.Inventors: Gang Chen, Ronen Rapaport, Elsa Reichmanis, Shu Yang
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Patent number: 7122642Abstract: A method to prepare new or unexpected polymorphs of materials which have not been observed, or to obtain a known polymorph under different conditions than those in which it is usually made, by using a laser to cause nucleation and crystal growth to occur in a supersaturated solution in such a way as to obtain a crystal structure which would not normally appear without the use of the laser.Type: GrantFiled: January 24, 2002Date of Patent: October 17, 2006Assignee: Polytechnic UniversityInventors: Allan S. Myerson, Bruce A. Garetz
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Patent number: 6994774Abstract: The present invention provides a method and apparatus for maintaining the active life of a catalyst in organic feed processing by applying a series of electromagnetic radiation pulses to the catalyst in a reactor. The pulsing of the catalyst selectively heats and cools the catalyst and can regulate the relative internal pressure of the catalyst particles to stimulate the acceleration of oil macromolecules mass-exchange through the catalyst pores and surface. This allows for the removal of cracked oil molecules from the particles. The application of electromagnetic pulses also regulates the activity of the catalyst. The electromagnetic radiation reduces the formation of coke on the catalyst and increases the life of the catalyst in the reactor. Further, the present invention provides a method and apparatus for removing water and salt from an organic feed. Water and salt is removed by applying a series of electromagnetic radiation pulses to the organic feed.Type: GrantFiled: September 16, 2002Date of Patent: February 7, 2006Inventor: Serik M. Burkitbaev
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Patent number: 6858114Abstract: The present invention relates to methods of hydrolyzing a protein (or peptide) by treating a protein (or peptide)-containing sample with a laser and associated apparatus for effectuating the hydrolysis.Type: GrantFiled: July 3, 2001Date of Patent: February 22, 2005Assignee: The University of AlabamaInventors: Jerald R. Izatt, Alvin L. Winters, Mary P. Ouzts
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Publication number: 20040254397Abstract: A method and apparatus for the conversion of aromatic alkyls to aromatic carboxylic acids in a reactor are provided, wherein the location of the feeding of the reaction mixture into the reactor significantly increases the conversion efficiency of the precursor materials.Type: ApplicationFiled: June 13, 2003Publication date: December 16, 2004Applicant: TEREFTALATOS MEXICANOS, S.A. de C.V.Inventors: Fernando Varela-Fuentes, Arturo Bulbarela-Croda, Guillermo Ramirez-Aguilar, Bertha Moran-Delgado
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Patent number: 6780497Abstract: Improved processes for surface treating expanded polytetrafluoroethylene (PTFE) is disclosed and improved surface-treated devices made from the processes. The processes employ a laser to surface-modify an expanded PTFE structure to create a macro-roughened surface that has the capability to remain microporous throughout. The unique process of the present invention creates a ridge and valley structure on the surfaces of devices that includes unique gnarled nodes along valley floors.Type: GrantFiled: August 5, 1999Date of Patent: August 24, 2004Assignee: Gore Enterprise Holdings, Inc.Inventor: James Todd Walter
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Patent number: 6759521Abstract: A method to select and prepare polymorphs of materials by switching the polarization state of light employing non-photochemical laser-induced nucleation.Type: GrantFiled: September 28, 2001Date of Patent: July 6, 2004Inventors: Allan S. Myerson, Bruce A. Garetz
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Patent number: 6733586Abstract: A method for the high-throughput non-photochemical laser induced nucleation of crystals from aged supersaturated solutions in which short high-intensity laser pulses are used to induce nucleation in an array or sequence aged supersaturated solutions. The laser reduces nucleation time and induces nucleation only in the area where the beam is focused or passes through, resulting in fewer nuclei than would be achieved by spontaneous nucleation. The high-throughput methodologies allow more crystals to grow in a given amount of time.Type: GrantFiled: August 16, 2002Date of Patent: May 11, 2004Assignee: Illinois Institute of TechnologyInventor: Allan S. Myerson
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Publication number: 20040035690Abstract: This invention provides method and apparatus for performing chemical and biochemical reactions in solution using in situ generated photo-products as reagent or co-reagent. Specifically, the method and apparatus of the present invention have applications in parallel synthesis of molecular sequence arrays on solid surfaces.Type: ApplicationFiled: November 1, 2002Publication date: February 26, 2004Applicant: The Regents Of The University Of MichiganInventor: Erdogan Gulari
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Publication number: 20030085112Abstract: A method and apparatus for initiating a combustive reaction in a slurry fuel. A transfer device optically interconnects an optical energy source with a combustion chamber containing slurry fuel and air. The optical energy source generates an output for interacting with the slurry fuel and air mixture to create a combustive reaction. In a first preferred embodiment, the optical energy source generates an excitation pulse having a high power leading edge and low power trailing edge. In a second preferred embodiment the optical energy source generates a first and second excitation pulse, the first excitation pulse having higher power than the second excitation pulse.Type: ApplicationFiled: November 8, 2001Publication date: May 8, 2003Inventors: Raymond Bernard Edelman, Jeffrey H. Hunt
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Publication number: 20030010620Abstract: The present invention relates to methods of hydrolyzing a protein (or peptide) by treating a protein (or peptide)-containing sample with a laser and associated apparatus for effectuating the hydrolysis.Type: ApplicationFiled: July 3, 2001Publication date: January 16, 2003Applicant: UNIVERSITY OF ALABAMAInventors: Jerald R. Izatt, Alvin L. Winters, Mary P. Ouzts
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Publication number: 20030006129Abstract: A methane or methanol producing system is proposed in which laser beams are generated in space by excitation of sunlight, transmitted onto land or sea without loss to obtain optical energy with high efficiency, and irradiated on a hydrogen producing device to produce industrially inexpensive hydrogen with high efficiency, thereby producing methane or methanol. A laser generating device for generating laser beams by exciting radiant light in laser rods by irradiation of sunlight is installed in space. The laser beams generated are transmitted to a light-receiving facility on land or on sea, and irradiated on a hydrogen generating device having a semiconductor electrode with a wavelength suitable for absorbing by the semiconductor electrode or by converting or shifting to a suitable wavelength. Using the hydrogen, methane or methanol is produced by a methane or methanol producing unit.Type: ApplicationFiled: June 21, 2002Publication date: January 9, 2003Inventors: Kazuo Imasaki, Masahiro Mori, Hiroyuki Nagayama
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Publication number: 20020177118Abstract: Methods, systems and apparatus for photo-processing of fluids, particularly complex fluids, such as blood products, pharmaceuticals, injectables and vaccines, are provided. The disclosed methods and systems employ non-laser light source(s) to generate monochromatic light energy, preferably in the range of 260 nm to 310 nm, for fluid treatment. Advantageous processing regimens and/or adjunct additives and/or agents may also be used to achieve desired and/or enhanced results, e.g., inactivation of pathogens, bacteria and/or viruses, modulation of immune response, and/or leukoreduction. Particularly preferred embodiments include novel temperature control systems and geometric/structural arrangements that provide enhanced processing results and/or efficiencies.Type: ApplicationFiled: March 13, 2001Publication date: November 28, 2002Inventors: John J. Coogan, Barry Ressler
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Patent number: 6426406Abstract: A method to prepare new or unexpected polymorphs of materials which have not been observed, or to obtain a known polymorph under different conditions than those in which it is usually made, by using a laser to cause nucleation and crystal growth to occur in a supersaturated solution in such a way as to obtain a crystal structure which would not normally appear without the use of the laser.Type: GrantFiled: October 23, 2000Date of Patent: July 30, 2002Inventors: Allan S. Myerson, Bruce A. Garetz
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Patent number: 6402898Abstract: A laser-based method of enhancing the enantiomeric excess of one chiral enantiomer in a mixture of chiral enantiomers, denoted L and D (and related to one another by the inversion operation I), is described. The molecule L and D is chosen so that electronic excitation is to an electronically excited species with stationary ro-vibrational states which are individually either symmetric or anit-symmetric with respect to I. The mixture is irradiated with a series of achiral pulses of coherent laser light. By varying the frequencies, timing, and durations of these pulses one can selectively increase the enantiomeric excess of either L or D in the ground electronic state.Type: GrantFiled: July 28, 2000Date of Patent: June 11, 2002Assignee: Yeda Research and Development Co., Ltd.Inventors: Paul Brumer, Moshe Shapiro, Einat Frishman
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Patent number: 6329553Abstract: A process for a combined selective thermal oxidation and photooxidation of hydrocarbons adsorbed onto zeolite matrices. A highly combined selective thermal oxidation and photooxidation of unsubstituted or alkyl substituted alkanes, alkenes, aromatics and cycloalkyls in solvent free zeolites under dark thermal conditions or under irradiation with visible light. The process oxidizes hydrocarbons almost completely selectively without substantial production of byproducts.Type: GrantFiled: November 10, 2000Date of Patent: December 11, 2001Assignee: The Regents of the University of CaliforniaInventors: Heinz Frei, Fritz Blatter, Hai Sun
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Patent number: 6281315Abstract: The present patent of invention describes the obtention of lasers in solid condition of dyes of the family of Rhodamines. More particularly, it describes lasers in which said dye or chromophore is to be found covalently anchored to a solid matrix, consisting in a transparent organic polymer and suficiently stable to the pumping radiation. Its application is the production of the laser emittance by an organic dye in a solid matrix and polymers containing rhodamines.Type: GrantFiled: June 12, 1997Date of Patent: August 28, 2001Assignee: Consejo Superior Investigaciones CientificasInventors: Angel Costela Gonzalez, Immaculada Garcia Moreno, Juan Manuel Figuera Acebal, Miguel Rodriguez Artigas, Alberto Ulíses Acu{overscore (n)}a Fernandez, Francisco Amat Guerri, Roberto Sastre Mu{overscore (n)}oz