Class / Patent application number | Description | Number of patent applications / Date published |
264010000 | Utilizing electrical energy | 25 |
20080284050 | Method and Device for Production of Nanofibres Through Electrostatic Spinning of Solutions or Melts of Polymers - The invention relates to the method of production of nanofibres through electrostatic spinning of solutions ( | 11-20-2008 |
20110006449 | PRODUCTION OF PHASE-PURE CERAMIC GARNET PARTICLES - Disclosed herein are processes for making a plurality of substantially phase-pure metal oxide particles, the particles comprising a garnet structure, the process comprising: subjecting a dispersion of precursors to a solvothermal treatment to form a garnet intermediate and applying a flow-based thermochemical process to said garnet intermediate. | 01-13-2011 |
20110031638 | ELECTROSPRAY/ELECTROSPINNING APPARATUS AND METHOD - Apparatus and method for producing fibrous materials in which the apparatus includes an enclosure having an inlet configured to receive a substance from which the fibrous materials are to be composed, a common electrode disposed in the enclosure, and plural extrusion elements provided in a wall of the enclosure opposite the common electrode so as to define between the plural extrusion elements and the common electrode a space in communication with the inlet to receive the substance in the space. In the method, a substance from which the fibrous materials are to be composed is fed to the enclosure having the plural extrusion elements, a common electric field is applied to the extrusion elements in a direction in which the substance is to be extruded, the substance is extruded through the extrusion elements to tips of the extrusion elements, and the substance is electrosprayed from the tips to form the fibrous materials. | 02-10-2011 |
20110062608 | MULTI-PHASIC NANOPARTICLES - A method of forming mufti-phasic nano-objects involves the jetting of two or more different liquids in side-by-side capillaries thereby generating a composite liquid stream. The composite then exposed to a force field which causes the composite liquid stream to at least partially solidify into a nano-object. The method forms a nano-object having a number of morphologies such as rods, spheres, and fibers. | 03-17-2011 |
20110278751 | NANOFIBER PRODUCTION DEVICE AND NANOFIBER PRODUCTION METHOD - A nanofiber production device ( | 11-17-2011 |
20120098150 | NANOFIBER MANUFACTURING APPARATUS AND NANOFIBER MANUFACTURING METHOD - In a nanofiber manufacturing apparatus ( | 04-26-2012 |
20130168886 | SUPPORT STRUCTURE, NANOFIBER MANUFACTURING APPARATUS USING THE SUPPORT STRUCTURE, AND NANOFIBER MANUFACTURING METHOD USING THE SUPPORT STRUCTURE - A nanofiber manufacturing apparatus for fabricating nanofibers from a raw material liquid by electrostatic explosions includes a housing internally having an electrospinning space in which nanofibers are fabricated, and a support structure for supporting an electrospinning head including nozzles for ejecting the raw material liquid into the electrospinning space. The support structure is fittable to and removable from the housing and is enabled to self-stand in a state of having been removed from the housing. | 07-04-2013 |
20130256930 | METHOD AND DEVICE FOR MANUFACTURING NANOFIBER - Provided is a nano-fiber manufacturing apparatus capable of mass-producing nano-fibers having uniform quality at a low manufacturing cost. The nano-fiber manufacturing apparatus is equipped with a nozzle block having a plurality of upward nozzles and a polymer solution supply channel. The nano-fiber manufacturing apparatus field-emits the nano-fibers while overflowing the polymer solution from the upward nozzles, and at the same time, collects the overflowed polymer solution so as to reuse it. The nano-fiber manufacturing apparatus is additionally equipped with a raw material tank, regeneration tanks, a middle tank, a first transfer device for transferring the polymer solution to the regeneration tanks, a second transfer device for transferring the polymer solution to the middle tank, and first and second transfer control devices for controlling the transfer operations of the first and second transfer devices. | 10-03-2013 |
20130264731 | Formation Of Conjugated Protein By Electrospinning - A method of preparing a polysaccharide-protein fiber by preparing an aqueous solution comprising a polysaccharide and a protein, applying a high voltage to the solution, collecting the fiber on a collecting plate. | 10-10-2013 |
20130313735 | Electrospun Calcium Phosphate Nanofibers - Calcium-phosphate nanofiber matrices comprising randomly dispersed crystalline calcium-phosphate nanofibers are provided. The nanofibers are synthesized using sol-gel methods combined with electrospinning The nanofibers may be hollow, solid or may comprise a calcium-phosphate shell surrounding a polymer containing inner core to which biologically functional additives may be added. The nanofiber matrices may be used to culture bone and dental cells, and as implants to treat bone, dental or periodontal diseases and defects. | 11-28-2013 |
20130313736 | FILTRATION MEDIAS, FINE FIBERS UNDER 100 NANOMETERS, AND METHODS - An electrospinning fine fiber production methodology for generating a significant amount of fibers with diameters of less than 100 nanometers is provided. Also, a filter media composite comprising a substrate layer and an electrospun fine fiber layer having a increased efficiency relative to pressure drop and/or a controlled pore size distribution is provided. According to some embodiments nylon is electrospun from a solvent combination of formic and acetic acids. | 11-28-2013 |
20140027938 | PROCESS FOR ELECTROSPINNING CHITIN FIBERS FROM CHITINOUS BIOMASS SOLUTION AND FIBERS AND ARTICLES PRODUCED THEREBY - Disclosed are methods for electrospinning chitinous biomass solution to form chitin fibers, using ionic liquids or other ion-containing liquids as solvent. Chitin fibers produced thereby and articles containing such chitin fibers are also disclosed. The chitin fiber thus obtained has very high surface area and improved strength over currently commercially available chitin materials. | 01-30-2014 |
20140061959 | METHOD AND DEVICE FOR APPLICATION OF LIQUID POLYMERIC MATERIAL ONTO SPINNING CORDS - The present disclosure relates to a method and a device for application of liquid polymeric material onto the active spinning zone of the cord of the spinning member of the spinning electrode, where the application means moving reversibly along the active spinning zone of the cord in the device for production of nanofibres through electrostatic spinning of liquid material in electrostatic field of high intensity between at least one spinning electrode and against it arranged collecting electrode. The liquid polymeric material is applied onto the cord around its whole circumference without any contact with gaseous environment in the spinning space, where the application means reversibly moves, whereas while the cord is leaving the application means the thickness of the layer of the liquid polymeric material is being reduced and immediately after leaving the application means the process of electrostatic spinning of the liquid polymeric material applied on the cord is started. | 03-06-2014 |
20140103554 | HIGH DIELECTRIC COMPOSITIONS FOR PARTICLE FORMATION AND METHODS OF FORMING PARTICLES USING SAME - A high dielectric composition for particle formation that includes a high dielectric solvent, and a high dielectric polymer dissolved into the high dielectric solvent. A method of forming particles including dissolving a high dielectric polymer in a high dielectric solvent to form a high dielectric composition, and dielectrophoretically spinning the high dielectric composition in an electrostatic field to form particles. | 04-17-2014 |
20140131907 | COLLECTOR DEVICE, NON-WOVEN FABRIC MANUFACTURING APPARATUS, AND NON-WOVEN FABRIC MANUFACTURING METHOD - A collector device of a non-woven fabric manufacturing apparatus electrostatically attracts and stacks fibers charged at a first electrical polarity on a front surface of a base sheet. The collector device comprises an electrode disposed to face a back surface of the base sheet at a distance, the electrode is supplied with a voltage having a second electrical polarity opposite to the first electrical polarity or grounded, and a plurality of charge holding members positioned between the base sheet and the electrode. The charge holding members serially come in contact with and get away from the back surface of the base sheet at random. | 05-15-2014 |
20140217630 | METHOD FOR THE PRODUCTION OF MULTIPHASE COMPOSITE MATERIALS USING MICROWAVE PLASMA PROCESS - Disclosed herein is a method to produce multiphase composite materials directly from solution precursor droplets by a fast pyrolysis process using a microwave plasma embodiment containing a microwave generating source, a dielectric plasma torch, and a droplet maker. Here, using homogenous solution precursors, droplets are generated with a narrow size distribution, and are injected and introduced into the microwave plasma torch with generally uniform thermal path. The generally uniform thermal path in the torch is achieved by axial injection of droplets into an axisymmetric hot zone with laminar flows. Upon exposing to high temperature within the plasma with controlled residence time, the droplets are pyrolyzed and converted into particles by quenching with a controlled rate of the exhaust gas in a gas chamber. The particles generated have generally uniform sizes and uniform thermal history, and can be used for a variety of applications. | 08-07-2014 |
20140284828 | METHOD OF CHARACTERIZATION OF VISCOELASTIC STRESS IN ELONGATED FLOW MATERIALS - The present invention generally relates to a device for measuring characteristics of polymeric fluids (semi-dilute and concentrated polymer solutions and melts) in extremely strong elongational flows. In one embodiment, the present invention relates to a device for measuring characteristics of polymeric fluids (semi-dilute and concentrated polymer solutions and melts) in extremely strong elongational flows in spinning jets and/or electrified jets. In another embodiment, the present invention relates to a method for determining the elastic modulus and the relaxation time of a polymeric fluid. Also, the present invention enables one to determine and/or measure the primary parameters needed to describe a viscoelastic material. | 09-25-2014 |
20140319712 | PLASMA DEVICE FOR PRODUCTION OF METAL POWDER - A plasma device for production of metal powder includes a reaction vessel, a plasma torch, a carrier gas supply unit and a cooling tube. A metal starting material is supplied to the vessel. The torch produces plasma between the torch and the metal starting material to evaporate the metal starting material and produce a metal vapor. The supply unit supplies into the vessel a carrier gas for carrying the metal vapor. The cooling tube is provided with indirect and direct cooling sections and cools the metal vapor transferred from the vessel to produce the metal powder. The metal vapor and/or the metal powder are indirectly cooled in the indirect cooling section and directly cooled in the direct cooling section. A projection and/or a recess are disposed at least on a part of an inner wall of the indirect cooling section. | 10-30-2014 |
20140353860 | ELECTRICALLY-DRIVEN FLUID FLOW AND RELATED SYSTEMS AND METHODS, INCLUDING ELECTROSPINNING AND ELECTROSPRAYING SYSTEMS AND METHODS - Systems and methods in which the flow of fluid is electrically driven, including electrospinning and electrospraying systems and methods, are generally described. | 12-04-2014 |
20150035181 | PATTERNED SLIT FIXTURES AND SURFACES FOR HIGH THROUGHPUT SLIT-SURFACE ELECTROSPlNNING - The present invention relates generally to the field of electrospinning. In particular, the present invention relates to an electrospinning device that includes a slit-fixture defined by an elongate aperture disposed between opposing elements of an electrically conductive material. These elements include a variety of patterns/shapes that affect the flow of fluid through the aperture and the electrical field across the aperture. | 02-05-2015 |
20150337121 | MULTIFUNCTIONAL TUNABLE BIOMATERIALS FOR TISSUE ENGINEERING - The present invention provides a multifunctional biomaterial comprising one or more biocompatible polymers and one or more α-cyclodextrin molecules having a plurality of hydroxyl groups capable of being chemically substituted with another functional group or moiety to form a pseudopolyrotaxane structure. The multifunctional biomaterials of the present invention provide synthetic 2D or 3D biomaterial scaffolds and nanofibers that can be decorated with multiple chemical functionalities without altering the base network. The polymer chains can be crosslinked via the terminal ends of the polymers and not through the α-cyclodextrin molecules. The inventive technology is useful for engineering tissue with human stem cells, including, mesenchymal stem cells (hMSCs) and adipose derived stem cells (hADSCs). Methods for making the multifunctional biomaterials and their use in biological application are also provided. | 11-26-2015 |
20150360158 | HYBRID FELTS OF ELECTROSPUN NANOFIBERS - The present invention relates generally to compositions for use in biological and chemical separations, as well as other applications. More specifically, the present invention relates to hybrid felts fabricated from electrospun nanofibers with high permeance and high capacity. Such hybrid felts utilize derivatized cellulose, and at least one non-cellulose-based polymer that may be removed from the felt by subjecting it to moderately elevated temperatures and/or solvents capable of dissolving the non-cellulose-based polymer to leave behind a porous nanofiber felt having more uniform pore sizes and other enhanced properties when compared to single component nanofiber felts. | 12-17-2015 |
20160059483 | SELF-ASSEMBLED TUNABLE NETWORKS OF STICKY COLLOIDAL PARTICLES - Self-assembled tunable networks of microscopic polymer fibers ranging from wavy colloidal “fur” to highly interconnected networks are created from polymer systems and an applied electric field. The networks emerge via dynamic self-assembly in an alternating (ac) electric field from a non-aqueous suspension of “sticky” polymeric colloidal particles with a controlled degree of polymerization. The resulting architectures are tuned by the frequency and amplitude of the electric field and surface properties of the particles. | 03-03-2016 |
20160068998 | NANOFIBER PRODUCING APPARATUS AND METHOD OF PRODUCING NANOFIBERS - According to one embodiment, a nanofiber producing apparatus includes a portion to be deposited, an ejection unit, a power supply unit, an inspection unit and an adjusting unit. The portion to be deposited includes a first surface and a second surface. The second surface faces the first surface. The ejection unit ejects a raw material liquid toward the first surface. The power supply unit generates a potential difference between the ejection unit and the first surface. The inspection unit inspects a defect of the first surface. The adjusting unit is provided so as to face the second surface. The adjusting unit generates a potential in the second surface. | 03-10-2016 |
20160376729 | NANOFIBER MANUFACTURING DEVICE AND NANOFIBER MANUFACTURING METHOD - According to the embodiment, a nanofiber manufacturing device that includes an ejector and a power generator is provided. The ejector is capable of ejecting a solution from a head portion toward a target. The power generator generates a potential difference between the head portion and the target. The head portion includes a first guide having a first surface and a second guide having a second surface, the first surface and the second surface making a gap, the gap being capable of maintaining the solution. A tip of at least one of the first guide and the second guide includes a maintain portion provided so as to be capable of maintaining the solution. | 12-29-2016 |