Conveying Or Aligning Particulate Material Patents (Class 264/437)
  • Patent number: 10985082
    Abstract: Aspects of wireless communication are described, including a radiofrequency (RF) amplifier chip, configured for transmitting or receiving data, comprising a first substrate comprising a first material and a second substrate comprising a second material that is different from the first material. The first substrate and the second substrate may be lattice-matched such that an interface region between the first substrate and the second substrate exhibits an sp3 carbon peak at about 1332 cm·1 having a full width half maximum of no more than 5.0 cm·1 as measured by Raman spectroscopy. In some aspects, the first substrate and said second substrate permit said chip to transmit or receive data at a transfer rate of at least 500 megabits per second and a frequency of at least 8 GHz. In some aspects, the RF amplifier chip is part of a satellite transmitter.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: April 20, 2021
    Assignee: Akash Systems, Inc.
    Inventors: Tyrone D. Mitchell, Jr., Felix Ejeckam, Daniel Francis, Paul Saunier, Kris Kong
  • Patent number: 10807278
    Abstract: In a method for producing a fiber-reinforced composite material, the fiber-reinforced composite material is formed by impregnating a reinforcing fiber sheet with a resin and curing the resin. The method includes: storing the reinforcing fiber sheet in a cavity of a forming mold; and impregnating the reinforcing fiber sheet with the resin by injecting the resin into the cavity of the forming mold, and curing the resin. In the impregnating and curing, the resin containing a magnetic powder is injected into the cavity, and a magnetic field is generated in the cavity to cause the resin containing the magnetic powder to flow.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: October 20, 2020
    Assignee: SUBARU CORPORATION
    Inventor: Tsutomu Kajiyama
  • Patent number: 10751919
    Abstract: A method for production of a molded part made of plastic by rotational molding includes placing a starting material in a form of at least one of a plastic or a plastic precursor into a rotational melt mold that is fitted with at least one magnetic element. The rotational melt mold is rotated and, while the rotational melt mold is rotating, the starting material is shaped. The at least one magnetic element rotates together with the rotational melt mold while the starting material is being shaped. The starting material and the at least one magnetic element are configured in such a way that the starting material and the at least one magnetic element interact magnetically such that a portion of the starting material is attracted and held in place by the at least one magnetic element while the starting material is being shaped.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: August 25, 2020
    Assignee: ELKAMET KUNSTSTOFFTECHNIK GMBH
    Inventors: Marco Emrich, Martin Deussen
  • Patent number: 10682822
    Abstract: The present disclosure relates to methods and systems for making thermoplastic resin materials and composite resin systems and materials made from the thermoplastic resins, by seeding one melted thermoplastic material with a second thermoplastic material in a crystalline state that comprises an amount of ferromagnetic material.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: June 16, 2020
    Assignee: The Boeing Company
    Inventors: Keith D Humfeld, Scott Hartshorn
  • Patent number: 10363688
    Abstract: The present disclosure relates to a technique for improving the ionic conductivity by introducing an electric field concept to a process for preparing an ion exchange membrane and deflecting an ion channel within an ion exchange membrane in one direction, and specifically to a device for fabricating an ion exchange membrane and a method therefor in a roll-to-roll manner and a casting manner with a deflected ion channel which can improve the ionic conductivity of the ion exchange membrane by reducing a travelling distance of the ions in the deflected ion channels.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: July 30, 2019
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seung-Hyeon Moon, Ju-Young Lee, Jae-Hun Kim, Ju-Hyuk Lee
  • Patent number: 9079363
    Abstract: A method is disclosed for producing a film containing oriented nanotubes or nanoparticles. The nanotubes typified by CNTs or nanoparticles are oriented utilizing an electric field, and influence of an electrode is suppressed, thereby allowing for production of a large-area film containing nanotubes or nanoparticles including reliably oriented nanotubes or nanoparticles, at a low cost. The method for producing the film containing nanotubes or nanoparticles which are oriented along the plane direction of the film includes: placing a film precursor containing nanotubes or nanoparticles on an interdigitated comb-like electrode through a support, in which the comb-like electrode is arranged on an insulating plate and configured with electrode wires having a circular cross-section; applying an AC voltage to the comb-like electrode in a state with the film precursor present on the comb-like electrode; and converting the film precursor into a film.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: July 14, 2015
    Assignee: Kyushu University, National University Corporation
    Inventors: Junya Suehiro, Michihiko Nakano
  • Patent number: 9011752
    Abstract: The disclosure pertains to a method of orientating particles by their easy axes in a selected area of a composite comprising the particles dispersed in a matrix. The method comprises liquefying and then solidifying the matrix at the selected area while applying an external magnetic field on the composite. The composite can be used for a transmission line component for directing high frequency electromagnetic waves. The particles are preferably superparamagnetic nanocrystallite particles and matrix is preferably a polymeric material.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: April 21, 2015
    Assignee: Nokia Corporation
    Inventors: Eira T. Seppälä, Markku T. Heino, Reijo K. Lehtiniemi, Markku A. Oksanen
  • Patent number: 8961858
    Abstract: There is disclosed stereolithographic manufacture of more complex components including at least one active material without the need for fabrication. Fabrication can introduce component discontinuities that hinder performance of the final component. Thus, some embodiments entail a method of manufacture for complex, field activated components such as piezoelectric or magnetostrictive sensors or actuators.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: February 24, 2015
    Assignee: Rolls-Royce Corporation
    Inventors: Paul Anthony Withey, Max Eric Schlienger
  • Publication number: 20150030645
    Abstract: The present invention relates to a solid composition that is especially in the form of a product cast as a stick or in acupel, the said composition having an outer surface, and containing one or more magnetic bodies (1) of non-zero magnetic susceptibility, the said solid composition being characterized in that these magnetic bodies (1) are on at least part of the said outer surface non-randomly oriented in the solid composition so as to form on the said outer surface one or more pattern(s) (5).
    Type: Application
    Filed: January 8, 2013
    Publication date: January 29, 2015
    Inventor: Bernardino Pinheiro-Bairras
  • Patent number: 8894906
    Abstract: Medical devices and related methods are disclosed.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: November 25, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. Arney, Scott R. Schewe
  • Patent number: 8865040
    Abstract: This invention provides a fuel cell flow field plate or bipolar plate having flow channels on faces of the plate, comprising an electrically conductive polymer composite. The composite is composed of (A) at least 50% by weight of a conductive filler, comprising at least 5% by weight reinforcement fibers, expanded graphite platelets, graphitic nano-fibers, and/or carbon nano-tubes; (B) polymer matrix material at 1 to 49.9% by weight; and (C) a polymer binder at 0.1 to 10% by weight; wherein the sum of the conductive filler weight %, polymer matrix weight % and polymer binder weight % equals 100% and the bulk electrical conductivity of the flow field or bipolar plate is at least 100 S/cm. The invention also provides a continuous process for cost-effective mass production of the conductive composite-based flow field or bipolar plate.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: October 21, 2014
    Assignee: Nanotek Instruments, Inc.
    Inventors: Bor Z. Jang, Aruna Zhamu, Lulu Song
  • Publication number: 20140291895
    Abstract: A method of manufacturing a body with oriented aspherical particles is disclosed. In an embodiment, the method comprises introducing aspherical particles with an orientation property in a liquid base material and solidifying the base material under the influence of an orienting force field.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 2, 2014
    Applicant: I2iC Corporation
    Inventors: Udayan Kanade, Balaji Ganapathy
  • Publication number: 20140287239
    Abstract: An integrated circuit chip attachment in a microstructure device is accomplished through the use of an adhesive-based material in which graphene flakes are incorporated. This results in superior thermal conductivity. The spatial orientation of the graphene flakes is controlled, for example by adhering polar molecules to the graphene flakes and exposing the flakes to an external force field, so that the graphene flakes have desired orientations under the integrated circuit chip, alongside of the integrated circuit chip and above the integrated circuit chip.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 25, 2014
    Applicant: STMICROELECTRONICS S.R.L.
    Inventors: Mario Giovanni Scurati, Laura Ceriati, Luciano Benini
  • Publication number: 20140264142
    Abstract: A method is described for inserting or dispersing quartz within a substrate containing polymers polarizable by an electromagnetic field having electrical resistivity, from an insulator to conductor or vice versa, modifiable by said field. The method involves dispersing in the substrate particles having a sandwich structure including two conductive layers and a layer with piezoelectric characteristics in the middle.
    Type: Application
    Filed: October 9, 2012
    Publication date: September 18, 2014
    Applicant: SPF LOGICA S.R.L.
    Inventors: Giorgio Eberle, Fabio Cappelli, Giuseppe Paronetto
  • Patent number: 8758667
    Abstract: A cold press and a method for the production of green compacts for diamond-containing tool segments includes a tool matrix, a top ram and a bottom ram assigned to a matrix adapter from opposite directions for the purpose of compressing sinterable metal powder and diamond granules after both of these materials have been fed to the matrix adapter. Step-by-step build-up of the green compact is carried out in such a manner that after one layer of metal powder and one layer of diamond granulate have been charged, these layers are together compressed.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: June 24, 2014
    Assignee: Dr. Fritsch Sondermaschinen GmbH
    Inventors: Rainer Idler, Markus Schaefer, Michael Feil
  • Patent number: 8704362
    Abstract: A composite structure 10 of a resin-diamagnetic material, including a diamagnetic material layer 12 and a resin layer 14 is obtained by a method including disposing particles of a diamagnetic material 22 and a resin 24 in a mold 30, applying a magnetic field to the diamagnetic material 22 disposed in the mold 30, and moving the diamagnetic material 22 in a direction away from at least a part of an inner surface of the mold 30, and then curing the resin 24 in the mold 30 thereby to produce a resin-diamagnetic material composite structure.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: April 22, 2014
    Assignee: Panasonic Corporation
    Inventors: Masanori Minamio, Daisuke Ujihara, Hiroshi Wada
  • Patent number: 8702885
    Abstract: A method of manufacturing ceramics includes: placing, on a base material, a first slurry in which a metal oxide powder is dispersed; applying a magnetic field to the first slurry to solidify the first slurry, thereby forming an under coat layer made of a first compact; placing, on the under coat layer, a second slurry containing a metal oxide powder constituting the ceramics; applying a magnetic field to the second slurry to solidify the second slurry, thereby forming a second compact to obtain a laminated body of the second compact and the under coat layer; and obtaining the ceramics made of the second compact by removing the under coat layer from the laminated body of the second compact and the under coat layer and then sintering the second compact, or sintering the laminated body of the second compact and the under coat layer and then removing the under coat layer.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: April 22, 2014
    Assignees: Canon Kabushiki Kaisha, University of Yamanashi
    Inventors: Takanori Matsuda, Tatsuo Furuta, Takayuki Watanabe, Jumpei Hayashi, Nobuhiro Kumada
  • Publication number: 20140097380
    Abstract: A method for fabricating an aligned graphene sheet-polymer composite is provided, which includes the steps below. A mixture is prepared with the dispersed graphene sheets in the polymer fluid. The graphene filament bundles substantially paralleled to each other are formed by a sequence of aligned graphene sheets in the polymer fluids when a field was applied. Finally, the mixture is solidified. An anisotropic index in a range of 1.00 to 2.00 is obtained in an aligned graphene sheet-polymer composite by calculating the ratio of the coefficient of thermal conductivity in a parallel direction and the one in perpendicular direction. The aligned graphene sheet-polymer composite is also provided.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 10, 2014
    Applicant: TAIWAN TEXTILE RESEARCH INSTITUTE
    Inventors: Ting-Yu Wu, Jui-Chi Lin, Tai-Hong Cheng, Shiao-Yen Lee, Min-Chi Tsai, Jen-Chun Yu, Shinn-Shyong Tzeng, Yu-Hong Lin
  • Publication number: 20140070393
    Abstract: The chip stack of semiconductor chips with enhanced cooling apparatus includes a first chip with circuitry on a first side and a second chip electrically and mechanically coupled to the first chip by a grid of connectors.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Gerald K. Bartley, Charles L. Johnson, John E. Kelly, III, Joseph Kuczynski, David R. Motschman, Arvind K. Sinha, Kevin A. Splittstoesser, Timothy J. Tofil
  • Patent number: 8663493
    Abstract: Provided is an oriented piezoelectric material with satisfactory sintering property free of Pb that is a hazardous substance, and a water-soluble alkaline ion, and a production method therefor. To this end, provided is a compound, including a tungsten bronze structure metal oxide, in which: the tungsten bronze structure metal oxide contains at least metal elements of Ba, Bi, Ca, and Nb, the metal elements satisfying the following conditions in terms of molar ratio; and has a C-axis orientation. The compound shows Ba/Nb=a: 0.363<a<0.399, Bi/Nb=b: 0.0110<b<0.0650, and Ca/Nb=c: 0.005<c<0.105. The tungsten bronze structure metal oxide preferably includes (1?x).Ca1.4Ba3.6Nb10O30?x.Ba4Bi0.67Nb10O30 (0.30?x?0.95).
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: March 4, 2014
    Assignees: Canon Kabushiki Kaisha, University of Yamanashi
    Inventors: Takanori Matsuda, Takayuki Watanabe, Hiroshi Saito, Nobuhiro Kumada
  • Publication number: 20140025007
    Abstract: Disclosed are fibers that include a composite of at least three different materials, where the at least three different materials include a conductor, an insulator, and a non-centrosymmetric material, and where each material is disposed in one or more different cross-sectional regions of the fiber, with each region extending along a common length of the fiber.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 23, 2014
    Applicant: Massachusetts Institute of Technology
    Inventor: Massachusetts Institute of Technology
  • Publication number: 20130341837
    Abstract: A method of controlling the orientation of glass or plastic reinforcing fibers in an injection molded polymeric/fiber article including the step of applying a high electric field to at least a portion of the mold cavity during the injection of the fiber/polymer mix and during a setup or packing time preceding the ejection of the article from the mold.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Applicant: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventor: UMESH N. GANDHI
  • Publication number: 20130333950
    Abstract: There is disclosed herein a method of designing a mold, the mold being at least part of a unitary body to be formed from a plurality of layers by 3D printing, the method comprising: defining an inner surface of the mold corresponding to at least part of an outer surface of an object to be molded in the mold; selecting a first material from which at least part of the mold is to be printed; and selecting a second material from which at least another part of the mold is to be printed, the second material having a higher thermal and/or electrical conductivity than the first material, wherein at least one of the layers from which the mold is to be formed by 3D printing includes areas to be printed from each of the first and second materials.
    Type: Application
    Filed: November 25, 2011
    Publication date: December 19, 2013
    Inventors: William Brian Atkins, Gary Eugene Weaver, Valerie Sillen
  • Publication number: 20130309488
    Abstract: A resin molded body includes a polymeric material, such as one of a thermoplastic resin, a thermosetting resin, elastomer, and rubber, to which a required amount of ferromagnetic glittering agent having shape anisotropy is added. At a time when the polymeric material is in a molten resin state inside of a mold cavity, the polymeric material is subjected to the three-axis orientation control and orientation distribution control performed by applying a rotating magnetic field to the molten resin at a required position, adjusting an orientation of the ferromagnetic glittering agent mixed in the molten resin, and shifting the ferromagnetic glittering agent mixed in the molten resin in a required direction, and the ferromagnetic glittering agent mixed in the molten resin is then shifted to a design surface side to be thereby concentratedly distributed for orientation.
    Type: Application
    Filed: May 3, 2013
    Publication date: November 21, 2013
    Inventors: Yunosuke FUKAMI, Tsunehisa KIMURA, Fumiko KIMURA
  • Patent number: 8551389
    Abstract: A method is disclosed for manufacturing an anisotropic material comprising providing a viscoplastic material having a yield stress, and a plurality of magnetic particles disposed therein, and then subjecting the viscoplastic material to a magnetic field for a time sufficient to at least partially align at least a portion of the magnetic particles to at least one of a predetermined position or orientation. Also disclosed is an article having anisotropic properties comprising a viscoplastic material, and a plurality of magnetic particles distributed therein and at least partially aligned to a predetermined orientation. An article having anisotropic properties, comprising a fixed viscoplastic material, and a plurality of magnetic particles distributed and at least partially anisotropically aligned in the fixed viscoplastic material is disclosed.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: October 8, 2013
    Assignee: Corning Incorporated
    Inventors: Andrey V Filippov, Charlotte Diane Milia
  • Publication number: 20130261021
    Abstract: An inverted microwell (102) provides rapid and efficient microanalysis system (100) and method for screening of biological particles (128), particularly functional analysis of cells on a single cell basis. The use of an inverted open microwell system (102) permits identification of particles, cells, and biomolecules that may be combined to produce a desired functional effect also functional screening of secreted antibody therapeutic activity as well as the potential to recover cells and fluid, and optionally expand cells, such as antibody secreting cells, within the same microwell.
    Type: Application
    Filed: December 5, 2011
    Publication date: October 3, 2013
    Applicant: MINDSEEDS LABORATORIES S.R.L.
    Inventors: Massimo Bocchi, Roberto Guerrieri
  • Publication number: 20130249556
    Abstract: A material for a magnetic resonance installation is provided, wherein the material includes a support material and a magnetic doping material which is admixed in a specific proportion. The doping material exhibits an anisotropic susceptibility. In respect of the anisotropic susceptibility, the doping material exhibits a mean orientation along a predefined direction. An essentially homogeneous intermixture of the support material and the doping material is present within a volume of the material which is smaller than 1 mm3.
    Type: Application
    Filed: March 20, 2013
    Publication date: September 26, 2013
    Inventor: Stephan Biber
  • Patent number: 8491292
    Abstract: Processing a composite material includes combining a nanomaterial with a matrix to yield a composite material. The nanomaterial comprises nanotubes. An electric current is applied to the composite material to align and disperse the nanotubes in the matrix.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: July 23, 2013
    Assignee: Raytheon Company
    Inventors: Timothy J. Imholt, James A. Pruett, Jerry M. Grimm, Christopher J. Gintz, Graham E. Gintz
  • Patent number: 8475703
    Abstract: A method is provided of fabricating a composite incorporating fillers. The method includes the steps of depositing the fillers in a matrix material either in a rapid prototyping device or prior to inserting the matrix material into a mold. The mold is positioned at a desired location with respect to an electrical field such that at least a portion of the fillers in the matrix material align in a first direction in response thereto. For producing a heterogeneous composite through a rapid prototyping process, the electrodes are positioned at a desired orientation to align the fillers. Thereafter, at least a portion of the matrix material is cured with desirable filler orientation. The procedure is repeated with the desired filler orientation and distribution being introduced layer by layer within the composite.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: July 2, 2013
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Lih-Sheng Turng, Larry R. Holmes, Jr., Yiyan Peng, Xiaochun Li
  • Publication number: 20130108826
    Abstract: In various embodiments, the present invention provides method of forming composites. Such methods generally comprise: (1) applying carbon nanotubes onto a system, wherein the system comprises at least one of an electric field or a magnetic field, and wherein the at least one electric field or magnetic field unidirectionally aligns the carbon nanotubes; and (2) applying a polymer onto the carbon nanotubes while the carbon nanotubes are unidirectionally aligned by the at least one electric field or magnetic field. The application of the polymer onto the carbon nanotubes forms composites that comprise unidirectionally aligned carbon nanotubes embedded in the polymer. In further embodiments, the present invention provides polymer composites formed by the methods of the present invention.
    Type: Application
    Filed: April 6, 2011
    Publication date: May 2, 2013
    Applicant: William Marsh Rice University
    Inventors: Divya Kannan Chakravarthi, Ahmad Salman, Enrique V. Barrera, Michael T. Searfass, Kyle Kissell
  • Patent number: 8431048
    Abstract: The exemplary embodiments of the present invention provide a method and system for aligning graphite nanofibers in a thermal interface material to enhance the thermal interface material performance. The method includes preparing the graphite nanofibers in a herringbone configuration, and dispersing the graphite nanofibers in the herringbone configuration into the thermal interface material. The method further includes applying a magnetic field of sufficient intensity to align the graphite nanofibers in the thermal interface material. The system includes the graphite nanofibers configured in a herringbone configuration and a means for dispersing the graphite nanofibers in the herringbone configuration into the thermal interface material. The system further includes a means for applying a magnetic field of sufficient intensity to align the graphite nanofibers in the thermal interface material.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: April 30, 2013
    Assignee: International Business Machines Corporation
    Inventors: Joseph Kuczynski, Arvind Kumar Sinha, Kevin Albert Splittstoesser, Timothy Jerome Tofil
  • Publication number: 20130049187
    Abstract: A composite structure 10 of a resin-diamagnetic material, including a diamagnetic material layer 12 and a resin layer 14 is obtained by a method including disposing particles of a diamagnetic material 22 and a resin 24 in a mold 30, applying a magnetic field to the diamagnetic material 22 disposed in the mold 30, and moving the diamagnetic material 22 in a direction away from at least a part of an inner surface of the mold 30, and then curing the resin 24 in the mold 30 thereby to produce a resin-diamagnetic material composite structure.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 28, 2013
    Inventors: Masanori MINAMIO, Daisuke Ujihara, Hiroshi Wada
  • Patent number: 8348656
    Abstract: System for practicing a method of making a low cost, light weight impact deflecting material, comprising directionally aligned single walled carbon nanotubes in an epoxy resin composition, that is near impervious to bullets fired at close range at all angles of incidence, that does not deteriorate upon abrasion or when exposed to wide ranges of temperature and humidity, and that when used to construct a protective shield for a body armor vest protects the wearer from blunt trauma effects.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: January 8, 2013
    Assignee: Block Textiles, Inc.
    Inventors: Graham E. Gintz, Christopher J Gintz
  • Patent number: 8329087
    Abstract: A method of manufacturing a magnetic sheet includes a slurry sheet forming step, a local magnetic field applying step, and a slurry curing step. In the slurry sheet forming step, slurry is formed by mixing flat soft magnetic metal powder in a binding material, and a slurry sheet is formed by shaping the slurry into a sheet. In the local magnetic field applying step, only the orientation of the flat soft magnetic metal powder, which exists in the partial area, of the entire flat soft magnetic metal powder mixed in the slurry sheet is unified in a predetermined direction by locally applying a magnetic field to a partial area of the expanded slurry sheet in a predetermined direction. In the slurry curing step, a magnetic sheet is formed by curing the slurry sheet after the local magnetic field applying step.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: December 11, 2012
    Assignee: Alps Electric Co., Ltd.
    Inventor: Yuichi Shimizu
  • Publication number: 20120299221
    Abstract: The magnetic reversibly attached template (MRAT) are solid devices made of biocompatible material containing a magnetic material. These devices can be made in any shape using microfabrication, milling, and molding and can be positioned and secured using magnetic forces. The applications of the M RAT encompass the patterning of biological and non-biological materials including cells, nucleic acids, peptides, proteins, aqueous solutions, polymers, rubbers, and other reagents on solid surfaces.
    Type: Application
    Filed: December 2, 2010
    Publication date: November 29, 2012
    Applicant: VANDERBILT UNIVERSITY
    Inventors: Andries Zijlstra, William Ashby, John Wikswo, Philip Samson
  • Patent number: 8211509
    Abstract: A method and apparatus is provided for printing using paste like inks such as those used in intaglio printing, wherein the inks include specialty flakes such as thin film optically variable flakes, or diffractive flakes. The invention discloses an apparatus having an energy source such as a heat source for temporarily lessening the viscosity of the ink during alignment of the flakes within the ink.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: July 3, 2012
    Inventors: Vladimir P. Raksha, Dishuan Chu, Thomas Mayer, Charles T. Markantes, Paul G. Coombs
  • Patent number: 8173060
    Abstract: A directional conductivity nanocomposite material, apparatuses and processes for making such material are generally described. A directional conductivity nanocomposite material may comprise a supporting material such as ceramic or polymer, with directionally conductive nanorod structures running through the supporting material. The material may be made by orienting nanorods in an electrophoretic gel using an electrical or magnetic field to align the nanorods, removing the gel, reinforcing the nanorods, and flowing in supporting material.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: May 8, 2012
    Assignee: Empire Technology Development LLC
    Inventor: Ezekiel J. J. Kruglick
  • Publication number: 20120068383
    Abstract: Apparatus and methods for using acoustic radiation forces to order particles suspended in a host liquid are described. The particles may range in size from nanometers to millimeters, and may have any shape. The suspension is placed in an acoustic resonator cavity, and acoustical energy is supplied thereto using acoustic transducers. The resulting pattern may be fixed by using a solidifiable host liquid, forming thereby a solid material. Patterns may be quickly generated; typical times ranging from a few seconds to a few minutes. In a one-dimensional arrangement, parallel layers of particles are formed. With two and three dimensional transducer arrangements, more complex particle configurations are possible since different standing-wave patterns may be generated in the resonator.
    Type: Application
    Filed: March 14, 2011
    Publication date: March 22, 2012
    Applicant: Los Alamos National Security, LLC
    Inventors: Naveen N. Sinha, Dipen N. Sinha, Gregory Russ Goddard
  • Patent number: 8118963
    Abstract: A method of forming a security device is disclosed wherein a magnetically aligned pigment coating coated on a first substrate upon a release layer is hot stamped onto another substrate or object. Multiple patches with aligned magnetic flakes can be oriented differently in the form of a patch work or mosaic. For example, a region of stamped aligned flakes having the flakes oriented in a North-South orientation can be stamped onto one region of an object or substrate and another region of stamped same flakes removed from a same substrate can be stamped onto a same object oriented in an E-W orientation. By first aligning and curing flakes onto a releasable substrate, these flakes can be stamped in various shapes and sizes of patches to be adhesively fixed to another substrate or object.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: February 21, 2012
    Inventor: Alberto Argoitia
  • Publication number: 20120018666
    Abstract: The exemplary embodiments of the present invention provide a method and system for aligning graphite nanofibers in a thermal interface material to enhance the thermal interface material performance. The method includes preparing the graphite nanofibers in a herringbone configuration, and dispersing the graphite nanofibers in the herringbone configuration into the thermal interface material. The method further includes applying a magnetic field of sufficient intensity to align the graphite nanofibers in the thermal interface material. The system includes the graphite nanofibers configured in a herringbone configuration and a means for dispersing the graphite nanofibers in the herringbone configuration into the thermal interface material. The system further includes a means for applying a magnetic field of sufficient intensity to align the graphite nanofibers in the thermal interface material.
    Type: Application
    Filed: July 23, 2010
    Publication date: January 26, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Joseph Kuczynski, Arvind K. Sinha, Kevin A. Splittstoesser, Timothy J. Tofil
  • Patent number: 8092777
    Abstract: A process for producing an anisotropic magnetic material includes: preparing a feebly magnetic material capable of transforming into a magnetic material by a prescribed reaction, orienting the feebly magnetic material by imparting an external field to the feebly magnetic material, and transforming the oriented feebly magnetic material to a magnetic substance by the prescribed reaction.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: January 10, 2012
    Assignees: Toyota Jidosha Kabushiki Kaisha, National Institute for Materials Science
    Inventors: Naoki Nakamura, Tetsuo Uchikoshi, Yoshio Sakka
  • Patent number: 8079838
    Abstract: A particle generator is able to generate pure particles for solid or liquid materials with melting points over several hundred degrees Celsius. The material is heated to generate the vapor in a small chamber. Heated nitrogen or some inert gas is used as the carry gas to bring the mixture into a dilution system. As the super saturation ratio of the material is large enough and over a critical value, particles are formed in the dilution system by homogenous nucleation, and grown in the same dilution system as well. The different size distributions and concentrations of the particles can be obtained by varying dilution parameters, such as residence time and dilution ratio.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: December 20, 2011
    Assignee: Horiba, Ltd.
    Inventor: Qiang Wei
  • Publication number: 20110284262
    Abstract: An anisotropic conductive adhesive (ACA) arrangement is disclosed, including a thermosetting resin disposed between a connector of a first structure and a connector of a second structure, and a plurality of ferromagnetic conductive particles dispersed through the thermosetting resin, wherein the plurality of ferromagnetic conductive particles form columns between the connector of the first structure and the connector of the second structure, and wherein a density of the ferromagnetic particles in the columns is substantially higher than a density of the plurality of ferromagnetic particles away from the columns.
    Type: Application
    Filed: May 23, 2011
    Publication date: November 24, 2011
    Applicant: PURDUE RESEARCH FOUNDATION
    Inventors: William J. Chappell, Sungwook Moon, Nestor A. Rojas, Maria Bellorin
  • Publication number: 20110175259
    Abstract: A method is provided of fabricating a composite incorporating fillers. The method includes the steps of depositing the fillers in a matrix material either in a rapid prototyping device or prior to inserting the matrix material into a mold. The mold is positioned at a desired location with respect to an electrical field such that at least a portion of the fillers in the matrix material align in a first direction in response thereto. For producing a heterogeneous composite through a rapid prototyping process, the electrodes are positioned at a desired orientation to align the fillers. Thereafter, at least a portion of the matrix material is cured with desirable filler orientation. The procedure is repeated with the desired filler orientation and distribution being introduced layer by layer within the composite.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 21, 2011
    Inventors: Lih-Sheng Turng, Larry R. Holmes, JR., Yiyan Peng, Xiaochun Li
  • Patent number: 7927091
    Abstract: A device for filling at least one mold with at least one powder. The device includes a mechanism to add at least one powder, at least one mechanism to eject the powder added into the device, in the form of a layer, and at least one deflector capable of locally intercepting at least part of the powder ejected in the form of a layer and redirecting the locally intercepted powder towards a determined location in the mold.
    Type: Grant
    Filed: November 25, 2004
    Date of Patent: April 19, 2011
    Assignees: Commissariat a l'Energie Atomique, Federal Mogul Operations France SAS
    Inventor: Stephane Revol
  • Patent number: 7883659
    Abstract: The present invention relates to a method for equalizing the orientation of fillers and/or distribution of fillers in a molding compound comprising filled plastic material of an injection molded part. A method of this type is required in particular during injection molding. The method according to the invention is characterized in that the injection mold and the molding compound are supplied with sound during injection molding in the injection mold. The sound has a frequency in the range of the spectrum of the first ten natural frequencies of the filler-matrix system. By supplying with this sound, the fillers, for example fibers, are distributed within the injection molding compound in a more isotropic manner with respect to their orientation and distribution so that significantly better mechanical and optical properties of the injection molded part are produced.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: February 8, 2011
    Assignee: EMS-Chemie AG
    Inventors: Thomas Jeltsch, Werner Kägi
  • Publication number: 20100159244
    Abstract: The present invention relates to a hexagonal boron nitride platelet particle having a layer of a ferromagnetic metal between the layers of hexagonal boron nitride thereof, and a process for preparing the composition thereof. The present invention further relates to polymeric composites formed therefrom. The present invention describes improvements in thermal conductivity of said composites when subject to an orienting magnetic field.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Salah BOUSSAAD
  • Publication number: 20100084791
    Abstract: A method of fabricating micro- and nano-scale fiber comprises: spreading micro- and nano-scale particles into a liquid or fluid-like material prior to forcing portions of the liquid or fluid-like material that surround the particles to depart from the original liquid or fluid-like environment by using a force field; stretching to elongate the portions of the liquid or fluid-like material until the free ends of the stretched portions stop motion to complete fiber or fiber-like structures in micro- and nano-scales.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 8, 2010
    Inventors: Xingtao Wu, Yong Shi
  • Publication number: 20100075104
    Abstract: Process for manufacturing composite sheets based on PVC and a network of long fibers, said process comprising the following steps: dispersing PVC in powder form in said network; subjecting the dispersion to an alternating electric field with a sufficient intensity and for a sufficient time in order to distribute the powder in the network; and heating the dispersion under pressure until the powder forms a continuous matrix.
    Type: Application
    Filed: November 26, 2007
    Publication date: March 25, 2010
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Claude Dehennau, Dominique Grandjean
  • Patent number: 7611656
    Abstract: A method of fabricating a plastic molded article is disclosed. In the method, a compound liquid, including two component liquids insoluble in each other and having different dielectric constants, is supplied between two electrodes, and an electric field is applied between the electrodes. At least one of the component liquids is an un-cured curable resin liquid. Upon application of the electric field, the higher dielectric constant component liquid is extended along the direction of the electric field, thus forming a bridge structure linking the electrodes. When the curable resin is cured after the bridge structure is formed, a plastic molded article is obtained.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: November 3, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Daiki Minegishi, Hisaaki Koseko