Synthetic Resin Patents (Class 252/62.54)
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Patent number: 9156975Abstract: The present invention relates to a composition comprising an aqueous dispersion of xanthan gum and opacifying pigment particles such as TiO2 encapsulated with a vinyl ester polymer or a vinyl ester-acrylate copolymer, as well as a method for its preparation. The composition is useful in coatings formulations, especially paint formulations.Type: GrantFiled: March 20, 2013Date of Patent: October 13, 2015Assignee: Rohm and Haas CompanyInventors: Kathleen Auld, Ward Thomas Brown
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Patent number: 9127302Abstract: The invention relates generally to the field of identification of DNA sequences, genes or chromosomes. Methods and composition to obtain Unique Sequence DNA probes are provided. Composition comprises of any double stranded DNA containing Unique Sequences from which the repetitive sequences are eliminated according to the method described in this invention. The invention also relates to the preservation of cells that have been identified after immunomagnetic selection and fluorescent labeling in order to further interrogate the cells of interest. Furthermore the invention relates to genetic analysis of cells that have been identified after immunomagnetic selection and fluorescent labeling.Type: GrantFiled: September 20, 2006Date of Patent: September 8, 2015Assignee: Janssen Diagnostics, LLCInventors: John A Verrant, Arjan G. J. Tibbe, Brad Foulk, Joost F. Swennenhuis, Leon W. M. M. Terstappen, Mark Carle Connelly, Michael T. Kagan
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Patent number: 9082541Abstract: A coil electrical component and a method of manufacturing the same. Magnetic material powder and adhesive powder are mixed in a predetermined proportion to form a solid mixture. The solid mixture and an object, such as a coil or a core material surrounded by the coil, are filled in a mold having a predetermined shape. The solid mixture in the mold is heated such that the magnetic material powder is adhered by the adhesive powder and covers the object, so as to form the coil electrical component. The coil electrical component corresponds in shape to the mold. Therefore, the coil electrical component has stable quality, and can be manufactured with less time and lower cost.Type: GrantFiled: January 6, 2012Date of Patent: July 14, 2015Assignee: Magic Technology Co., Ltd.Inventors: Peng-Chen Lo, Lung Ching Tan
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Publication number: 20150147582Abstract: A system relating to providing printable/writable magnetic sheets comprising a favorable balance of mechanical rigidity and flexibility for improved handling during processing steps required for the manufacture of such printable/writable magnetic sheets.Type: ApplicationFiled: April 27, 2012Publication date: May 28, 2015Applicant: MAGNUM MAGNETICS CORPORATIONInventor: Jerry L. King
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Publication number: 20150140595Abstract: A set of paramagnetic particles synthesized by co-precipitation methods wherein an alkaline hydroxide solution is mixed with a metal salt solution. The alkaline hydroxide features ammonium hydroxide, potassium hydroxide, sodium hydroxide, or mixtures thereof. The metal salt solution features at least one ferrous salt and at least one tetravalent metal salt selected from Group 4 elements of the Periodic Table. The concentration of the ferrous salt is equal to or greater than the concentration of the tetravalent metal salt. The paramagnetic particles may be used for bioprocessing via magnetic fields. Bioprocessing, for example, may include purifying, concentrating, or detecting biomolecules of interest (e.g., nucleic acids, carbohydrates, peptides, proteins, other organic molecules, cells, organelles, microorganisms, viruses, etc.), or other magnetic field-based processes common to applications in separation science, diagnostics, molecular biology, protein chemistry, and clinical practice.Type: ApplicationFiled: May 22, 2013Publication date: May 21, 2015Inventor: Joseph Gerard UTERMOHLEN
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Publication number: 20150129793Abstract: The present invention provides a novel method to synthesize composite nanoparticle structures combining the functions of individual nanoparticle components, such as quantum dots, gold nanoparticles and iron oxide nanoparticles. This novel technology solves some of the major problems of the commonly used synthesis methods such as poorly-controlled ratios between different components in a composite nanoparticle. This platform technology has great potential in applying nanotechnology in biomedical detection and imaging, solar cells, as well as environmental monitoring.Type: ApplicationFiled: November 11, 2014Publication date: May 14, 2015Inventor: Gang RUAN
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Publication number: 20150132758Abstract: Disclosed is a process for retrieval of nucleotide sequence. The process includes mixing iron chloride tetrahydrate with iron (III) chloride hexahydrate in solution; adding ammonium hydroxide to the mixture and stirring to form maghemite nanoparticles; stirring the maghemite nanoparticles in a solution with an inorganic acid, a surfactant and a monomer precursor of a conducting polymer; initiating polymerization of the monomer by adding the inorganic acid and an oxidizing agent to the stirred solution and further stirring to yield Polyaniline/maghemite nanocomposites; adding the nanocomposites to an first aqueous solution of the nucleotide sequence and stirring so as to electrostatically interact the nanocomposites with the nucleotide sequence; and weakening the electrostatic interaction between the nanocomposite and the nucleotide sequence to recover the nanocomposite independently of the nucleotide sequence.Type: ApplicationFiled: January 12, 2015Publication date: May 14, 2015Inventors: Juan Carlos Medina-Llamas, Alicia Elizabeth Chávez-Guajardo, Cesar Augusto Souza de Andrade, Kleber Goncalves Bezerra Alves, Celso Pinto de Melo
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Patent number: 9023230Abstract: The present invention relates facile method to synthesize magnetic PNCs with highly dispersed and narrow size distributed NPs. The PNCs have highly thermal stability and unique electrical and dielectric properties.Type: GrantFiled: November 29, 2011Date of Patent: May 5, 2015Assignees: Lamar University, A Component of the Texas State University System, An Agency of the State of Texas, Texas State University San Marcos, A Component of the Texas State University System, An Agency of the State of TexasInventors: Luyi Sun, Zhanhu Guo, Jiahua Zhu, Suying Wei
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Patent number: 9017570Abstract: Disclosed is a hybrid filler for an electromagnetic shielding composite material and a method of manufacturing the hybrid filler, by which electromagnetic shielding and absorbing capabilities are improved and heat generated by electromagnetic absorption is effectively removed. The hybrid filler for an electromagnetic shielding composite material includes an expandable graphite (EG) having a plurality of pores, and magnetic particles integrated with a carbon nanotube (CNT) on outer surfaces thereof in a mixed manner, wherein the magnetic particles are inserted into the pores of the EG.Type: GrantFiled: July 24, 2012Date of Patent: April 28, 2015Assignee: Hyundai Motor CompanyInventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, Byung Sam Choi
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Publication number: 20150107765Abstract: Illustrative embodiments of anisotropic conductive adhesive (ACA) and associated methods are disclosed. In one illustrative embodiment, the ACA may comprise a binder curable using UV light and a plurality of particles suspended in the binder. Each of the plurality of particles may comprise a ferromagnetic material coated with a layer of electrically conductive material. The electrically conducting material may form electrically conductive and isolated parallel paths when the ACA is cured using UV light after being subjected to a magnetic field.Type: ApplicationFiled: October 13, 2014Publication date: April 23, 2015Inventor: S. Kumar Khanna
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Publication number: 20150108391Abstract: Various embodiments of the present disclosure pertain to methods of making magnetic carbon nanoribbons. Such methods generally include: (1) forming carbon nanoribbons by splitting carbon nanomaterials; and (2) associating graphene nanoribbons with magnetic materials, precursors of magnetic materials, or combinations thereof. Further embodiments of the present disclosure also include a step of reducing the precursors of magnetic materials to magnetic materials. In various embodiments, the associating occurs before, during or after the splitting of the carbon nanomaterials. In some embodiments, the methods of the present disclosure further comprise a step of (3) functionalizing the carbon nanoribbons with functionalizing agents. In more specific embodiments, the functionalizing occurs in situ during the splitting of carbon nanomaterials. In further embodiments, the carbon nanoribbons are edge-functionalized.Type: ApplicationFiled: January 28, 2013Publication date: April 23, 2015Applicants: M-I L.L.C., William Marsh Rice UniversityInventors: James M. Tour, Bostjan Genorio, Wei Lu, Brandi Katherine Price-Hoelscher
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Patent number: 9011710Abstract: Methods are disclosed for synthesizing nanocomposite materials including ferromagnetic nanoparticles with polymer shells formed by controlled surface polymerization. The polymer shells prevent the nanoparticles from forming agglomerates and preserve the size dispersion of the nanoparticles. The nanocomposite particles can be further networked in suitable polymer hosts to tune mechanical, optical, and thermal properties of the final composite polymer system. An exemplary method includes forming a polymer shell on a nanoparticle surface by adding molecules of at least one monomer and optionally of at least one tethering agent to the nanoparticles, and then exposing to electromagnetic radiation at a wavelength selected to induce bonding between the nanoparticle and the molecules, to form a polymer shell bonded to the particle and optionally to a polymer host matrix. The nanocomposite materials can be used in various magneto-optic applications.Type: GrantFiled: April 1, 2010Date of Patent: April 21, 2015Assignee: Arizona Board of Regents on behalf of the University of ArizonaInventors: Palash Gangopadhyay, Alejandra Lopez-Santiago, Robert A. Norwood
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Publication number: 20150093599Abstract: The magnetic coating composition for a magnetic recording medium comprises: (A) a compound denoted by formula (1) having a weight average molecular weight of equal to or less than 20,000: (A1-R2—S)n-R1—(P1)m ??(1) wherein, in formula (1), R1 denotes an organic connecting group with a valence of (m+n); R2 denotes a single bond or divalent organic connecting group; A1 denotes a functional group selected from the group consisting of an acidic group, a basic group, and a hydroxyl group; m denotes an integer ranging from 1 to 8 and n denotes an integer ranging from 1 to 9, with m+n ranging from 3 to 10; each of n instances of A1 and R2 can be independently different or identical; P1 denotes a polymer backbone; and m instances of P1 can be identical or different; (B) binder; (C) ferromagnetic powder; and (D) solvent.Type: ApplicationFiled: September 26, 2014Publication date: April 2, 2015Applicant: FUJIFILM CORPORATIONInventor: Reiko FUKAGAWA
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Publication number: 20150083959Abstract: A magnetic material of an embodiment includes a plurality of magnetic metal particles, a plurality of columnar oxide particles, and a matrix phase. Each of the plurality of the magnetic metal particles includes at least one element selected from a first group consisting of Fe, Co, and Ni. Each of the plurality of the columnar oxide particles includes at least one oxide selected from a second group consisting of Al2O3, SiO2, and TiO2 and is in contact with the magnetic metal particle. The matrix phase has a higher electrical resistance than each of the plurality of the magnetic metal particles. The matrix phase surrounds the plurality of magnetic metal particles and the plurality of columnar oxide particles. In the magnetic material, 5 nm?l?L and 0.002?L/R?0.4 hold, where R represents a particle size of the magnetic metal particle, L represents a length of the columnar oxide particle, and l represents a breadth of the columnar oxide particle.Type: ApplicationFiled: September 9, 2014Publication date: March 26, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Tomoko EGUCHI, Seiichi SUENAGA, Koichi HARADA, Tomohiro SUETSUNA, Toshihide TAKAHASHI
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Patent number: 8986567Abstract: Disclosed is a magnetic body composition, including a resin and a magnetic nanoparticle, the magnetic nanoparticle including an oxide of at least one kind of metal selected from the group composed of Ga, Zn, and Sn and an FeCo oxide.Type: GrantFiled: May 17, 2013Date of Patent: March 24, 2015Assignee: Ricoh Company, Ltd.Inventor: Michiaki Shinotsuka
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Patent number: 8986541Abstract: According to one embodiment, a copper recovery apparatus includes a precipitation tank, a mixing tank, a filter-aid feeder, a solid-liquid separator includes a filter, a cleaning-water supply line, a cleaning-water discharge line, a separation tank, and a filter-aid return line. The precipitation tank is configured to receive copper ions-containing water to be treated and an alkali to prepare treated water containing a precipitate of copper compound. The solid-liquid separator is configured to allow the treated water to be passed through the filter on which the precoat layer is deposited to separate the precipitate retained on the precoat layer from a filtrate.Type: GrantFiled: June 7, 2012Date of Patent: March 24, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Taro Fukaya, Kenji Tsutsumi, Atsushi Yamazaki, Ichiro Yamanashi, Hirofumi Noguchi, Yasutaka Kikuchi, Shuji Seki
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Publication number: 20150064718Abstract: An organic/inorganic composite is provided. The organic/inorganic composite materials are sufficiently hard and brittle to be ground to form particles suitable for biological or chemical separation applications. The organic/inorganic composite materials can be magnetic or magnetically susceptible and can have functional reactive groups to allow attachment of biomolecules. Methods of making and using the organic/inorganic composites are also provided.Type: ApplicationFiled: August 28, 2014Publication date: March 5, 2015Inventors: Stephen Joseph Caracci, Martin Joseph Murtagh, Christopher Bankole Shogbon, Yue Zhou
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Publication number: 20150053886Abstract: Compositions including hard magnetic photoresists, soft photoresists, hard magnetic elastomers and soft magnetic elastomers are provided.Type: ApplicationFiled: October 30, 2014Publication date: February 26, 2015Inventors: Bonnie Gray, Daniel B. Lenzoff, Jasmine L. Korcok, Ajit Khosla
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Publication number: 20150047371Abstract: Provided is a high-strength, bonded La(Fe, Si)13-based magnetocaloric material, as well as a preparation method and use thereof. The magnetocaloric material comprises magnetocaloric alloy particles and an adhesive agent, wherein the particle size of the magnetocaloric alloy particles is less than or equal to 800 ?m and are bonded into a massive material by the adhesive agent; the magnetocaloric alloy particle has a NaZn13-type structure and is represented by a chemical formula of La1-xRx(Fe1-p-qCopMnq)13-ySiyA?, wherein R is one or more selected from elements cerium (Ce), praseodymium (Pr) and neodymium (Nd), A is one or more selected from elements C, H and B, x is in the range of 0?x?0.5, y is in the range of 0.8?y?2, p is in the range of 0?p?0.2, q is in the range of 0?q?0.2, ? is in the range of 0???3.0. Using a bonding and thermosetting method, and by means of adjusting the forming pressure, thermosetting temperature, and thermosetting atmosphere, etc.Type: ApplicationFiled: May 17, 2012Publication date: February 19, 2015Applicants: Institute of Physics, Chinese Academy of Sciences, Hubei Quanyang Magnetic Materials Manufacturing Co., Ltd.Inventors: Fengxia Hu, Ling Chen, Lifu Bao, Jing Wang, Baogen Shen, Jirong Sun, Huayang Gong
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Publication number: 20150041400Abstract: A particulate magnetic nanostructured solid sorbent (MNSS) material is described herein. The particles of the MNSS comprise a plurality of tethered nanoparticles. The nanoparticles are tethered together by substantially linear hydrocarbon chains, a poly(alkylene oxide) chains, or a combination thereof connecting the nanoparticles in a three-dimensional elastic network with the nanoparticles as junctions of the network having junction functionality of about 2.1 to about 6. The surfaces of at least some of the nanoparticles comprise a polymerized siloxane bearing at least one sorption-aiding substituent selected from a hydrophilic group and a lipophilic group. The plurality of nanoparticles is made up of superparamagnetic nanoparticles or a combination of superparamagnetic and non-magnetic nanoparticles. The individual superparamagnetic nanoparticles comprise a passivating metal oxide coating around a core comprising at least one nanocrystalline metal or alloy having ferromagnetic or ferrimagnetic properties.Type: ApplicationFiled: August 8, 2013Publication date: February 12, 2015Inventors: YuPo J. LIN, Richard W. BROTZMAN, Seth W. SNYDER
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Publication number: 20150041703Abstract: Macroporous beads and a method of manufacturing and using such macroporous beads. wherein the beads are distinguishable for use in a multiplex assay. Preferably, the beads are distinguishable by two or more unique fluorochromes, and at least some of the beads are magnetically responsive. In a preferred form, some of the macroporous beads have interior pores with a different moiety from the exterior surface, allowing beads with different attached functional groups.Type: ApplicationFiled: September 29, 2014Publication date: February 12, 2015Inventors: Jason BEDRE, Don Chandler, Ben Mize
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Publication number: 20150041702Abstract: The present invention relates to ferrite particles for bonded magnets having a bulk density of not more than 0.75 g/cm3 and a degree of compaction of not less than 65%, a resin composition for bonded magnets using the ferrite particles and the composition, and a rotor. The ferrite particles for bonded magnets and the resin composition for bonded magnets according to the present invention are capable of providing a bonded magnet molded product having a good tensile elongation and an excellent magnetic properties.Type: ApplicationFiled: March 14, 2013Publication date: February 12, 2015Inventors: Yasushi Nishio, Hiromitsu Sakurai, Norihiro Fukushina, Yasuhiko Fujii
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Patent number: 8951635Abstract: A bonded magnet is required to have a large energy product, which is the product of magnetization Br and coercive force Hc. However, in a ferrite powder for a bonded magnet, when the particle diameter is reduced to improve the coercive force, the packing properties are impaired, and the Br is lowered. When the particle diameter is increased to improve the magnetization, the coercive force is lowered. Therefore, to increase the energy product, both the Br and Hc must be increased. A ferrite powder that has a large particle size, is composed of smooth crystals, and suffers only a small reduction in coercive force even after pressurization is obtained by mixing a fine ferrite powder having a small particle size with a ferrite powder calcined at a temperature of 1050° C. to 1300° C. in the presence of a chloride at its saturated vapor pressure and then annealing the mixture at 800° C. to 1100° C. A bonded magnet produced using the powder has an energy product of 2.0 MGOe or more.Type: GrantFiled: April 9, 2010Date of Patent: February 10, 2015Assignee: Dowa Electronics Materials Co., Ltd.Inventors: Shinichi Suenaga, Kouji Hirata, Satoru Tsuboi, Keisuke Ayabe, Kazuyosi Horii
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Publication number: 20150037558Abstract: A method for manufacturing a magnetocaloric element including the following steps: a powder of a magnetocaloric alloy with composition: La1-x(Ce,Pr)x((Fe1-z-vMnzCov)1-ySiy)wXn is prepared, wherein: X is one or several elements selected from H, C, N and B; x=0 to 0.5; y=0.05 to 0.2; z=0 to 0.15; v=0 to 0.15; w=12 to 16; n=0 to 3.5; the remainder being impurities, with a maximum content of 4% by weight, preferably a maximum content of 2% by weight, of rare earths other than La, Ce and Pr, and a maximum content of 2% by weight, for the other impurities, the preparation of the powder including the following steps: a liquid alloy (4) is elaborated; it is solidified in the form of a powder of substantially spherical particles (14) with an average diameter comprised between 10 and 100 ?m by atomization of a jet (8) by means of an inert gas; said powder (14) is heat-treated in order to give it at least 70% by weight of a structure of the NaZn13 type by heating up to a temperature from 900 to 1,200° C.Type: ApplicationFiled: March 18, 2013Publication date: February 5, 2015Inventors: Alexandra Dubrez, Peter Vikner, Charlotte Mayer, Michel Pierronnet
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Publication number: 20150027218Abstract: A security substrate may include at least one area for authentication and/or for revealing attempts at forgery using solvents. The at least one area may include individualized polymer- or copolymer-based particles comprising at least one visible or detectable marker. The polymer or copolymer may be at least partially soluble in solvents used for forgery.Type: ApplicationFiled: July 25, 2012Publication date: January 29, 2015Applicant: ARJOWIGGINS SECURITYInventors: Sandrine Rancien, Celine Desnous
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Publication number: 20150021511Abstract: The present invention relates to an organic-inorganic nanocomposite comprising a polymer having temperature dependent volume phase transition characteristics, and magnetic particles embedded in the polymer, and a preparation method thereof. The present invention induces more rapid adsorption and desorption of metal ions and can effectively recover the used organic-inorganic nanocomposite.Type: ApplicationFiled: September 28, 2012Publication date: January 22, 2015Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Jung Hyun Kim, Yong Seok Kim, In Woo Cheong
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Publication number: 20150022301Abstract: [Problem] Provided is an injection-molded reactor which has a further reduced loss when the reactor is in operation. [Solution Means] The injection-molded reactor is configured by injection-molding a core using a compound for a core so that a coil obtained by winding a electric wire is embedded in the core without leaving any space therein, the compound being a compound obtained by adding a low-melting-point resin B that has a melting point of 150° C. or lower to a base resin A that is a highly heat-resistant resin with a melting point of 150° C.Type: ApplicationFiled: September 19, 2012Publication date: January 22, 2015Applicant: Daido Steel Co. LTDInventors: Junichi Esaki, Yusuke Tozawa, Yoshitomo Kajinami, Kousuke Yoshimoto
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Publication number: 20150022309Abstract: A magnetic metal-containing resin that includes 70 to 88 mass % of a magnetic metal powder and 5.0 mass % or more of an oxide, and the oxide is 2.8 ?m or more in average particle size. The magnetic metal-containing resin preferably includes 10 mass % or more of the oxide.Type: ApplicationFiled: October 6, 2014Publication date: January 22, 2015Inventor: Hiroshi Marusawa
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Publication number: 20150014572Abstract: The present invention provides a magnetorheological fluid composition and method for forming the same. The magnetorheological fluid composition comprises a carrier fluid and a nano-magnetic-responsive composite dispersed uniformly in the carrier fluid. The nano-magnetic-responsive composite is formed by having carbonyl iron microparticles react with a grafting agent to form a modified carbonyl iron nanoparticles and blending the modified carbonyl iron nanoparticles with acid-treated graphene or carbon nanotubes.Type: ApplicationFiled: July 9, 2013Publication date: January 15, 2015Applicant: National Taipei of University of TechnologyInventor: SYANG-PENG RWEI
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Publication number: 20140374644Abstract: A magnetic material of an embodiment includes a plurality of magnetic metal particles and a matrix phase. Each of the plurality of magnetic metal particles includes a magnetic metal and a first compound included in the magnetic metal. The magnetic metal includes at least one element selected from Fe, Co, and Ni. The first compound is an oxide, a nitride, or a carbide including at least one element selected from Fe, Al, Si, B, Mg, Ca, Zr, Ti, Hf, Zn, Mn, Nb, Ta, Mo, Cr, Cu, W, a rare-earth element, Ba, and Sr. The matrix phase fills a space between the plurality of magnetic metal particles and has higher electric resistance than the plurality of magnetic metal particles.Type: ApplicationFiled: June 23, 2014Publication date: December 25, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Tomoko EGUCHI, Seiichi Suenaga, Koichi Harada, Tomohiro Suetsuna, Toshihide Takahashi
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Publication number: 20140376837Abstract: Systems, devices, uses and methods relating to magnetorhological materials including carbon nanotubes, such as single-walled and multi-walled carbon nanotubes, are disclosed. Uses of magnetorheological materials such as in motion damping/vibration isolation are also disclosed.Type: ApplicationFiled: June 23, 2014Publication date: December 25, 2014Applicant: The Regents of the University of CaliforniaInventors: Lizhi Sun, Hang Sun, Rui Li
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Publication number: 20140374645Abstract: An aspect of the present invention relates to a magnetic recording medium comprising a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein an average particle size of the ferromagnetic powder is equal to or less than 50 nm, the magnetic layer further comprises a compound, and the compound comprises at least one polyalkyleneimine chain and at least one polyester chain, with a proportion in the compound accounted for by the polyalkyleneimine chain being less than 5.0 weight percent and a number average molecular weight of the polyalkyleneimine chain ranging from 300 to 3,000.Type: ApplicationFiled: June 23, 2014Publication date: December 25, 2014Applicant: FUJIFILM CORPORATIONInventors: Wataru KIKUCHI, Toshihide AOSHIMA, Yuushi KANEKO, Kazutoshi KATAYAMA, Katsuhiko MEGURO
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Publication number: 20140367341Abstract: In order to rapidly remove an organic acid dissolved in contaminated water, a coagulant capable of forming a floc with the organic acid in the contaminated water is configured to include an iron oxide bearing an inorganic acid on surface thereof, and an aqueous solution of an acidic-group-containing polymer. Upon removal of the organic acid as a floc from the contaminated water using the coagulant, the iron oxide bearing an inorganic acid on surface is initially added to the contaminated water, and then the aqueous solution of the acidic-group-containing polymer is added to precipitate a floc, and the floc is magnetically separated.Type: ApplicationFiled: October 29, 2012Publication date: December 18, 2014Inventors: Hiroshi Sasaki, Akira Mochizuki, Hisashi Isogami
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Publication number: 20140356642Abstract: A metallic magnetic powder where a primary particle of each metallic magnetic particle is a powder without forming an aggregate, and a method of making the same that includes manufacturing a metallic magnetic powder constituted of metallic magnetic particles, containing a metallic magnetic phase, with Fe, or Fe and Co as main components, rare earth elements or yttrium and one or more non-magnetic components removing the non-magnetic component from the metallic magnetic with a reducing agent, while making a complexing agent exist for forming a complex with the non-magnetic component in water; oxidizing the metallic magnetic particle with the non-magnetic component removed; substituting water adhered to the oxidized metallic magnetic particle with an organic solvent; and coating the surface of the metallic magnetic particle with an organic matter different from the organic solvent, while maintaining a wet condition of the metallic magnetic particle with the organic solvent adhered thereto.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicants: THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA, DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Dong Chul PYUN, Heemin YOO, Hirohisa OMOTO, Takayuki YOSHIDA
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Patent number: 8901205Abstract: Disclosed is an electromagnetic wave-absorbing composite. To make the electromagnetic wave-absorbing composite, barium ferrite (BaFe12O19) and barium titanate (BaTiO3) are added into aniline during polymerization of the aniline. Thus, a core-shell structure is formed. The core-shell structure includes a magnetic/dielectric core and a conductive shell for covering the magnetic/dielectric core.Type: GrantFiled: September 6, 2011Date of Patent: December 2, 2014Assignee: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National DefenseInventors: Cheng-Chien Yang, Kuo-Hui Wu
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Publication number: 20140346115Abstract: There is provided an aggregate of radioactive material removing particles in which two or more radioactive material removing particles having magnetic particles and a radioactive material adsorption component are assembled, wherein a pore volume in the aggregate is 0.5 mL/g or more and 5.0 mL/g or less, and the pore volume means a cumulative value obtained by a mercury press-in method.Type: ApplicationFiled: May 19, 2014Publication date: November 27, 2014Inventors: Yoshihisa NAMIKI, Toshihiko UEYAMA, Takayuki YOSHIDA
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Publication number: 20140333401Abstract: [Problem] Provided is an injection-molded reactor which has excellent heat dissipation properties and in which the internal temperature of the core can be satisfactorily inhibited from rising due to heat generation when the reactor is in operation. [Solution Means] A material for a core obtained by mixing a soft magnetic powder, a resin binder, and a thermally conductive fibrous filler having a higher thermal conductivity than the soft magnetic powder in accordance with X·(soft magnetic powder)+Y·(thermally conductive filler)+(100-X-Y)·(resin binder), wherein X, indicating the proportion of the soft magnetic powder, is 83 to 96% by mass and Y, indicating the proportion of the thermally conductive filler, is 0.2 to 6.8% by mass, is used to mold a core 16 so that a coil 10 obtained by winding an electric wire is embedded therein without an interval, thereby configuring a reactor 15.Type: ApplicationFiled: September 19, 2012Publication date: November 13, 2014Applicant: Daido Steel Co. LTDInventors: Junichi Esaki, Yusuke Tozawa, Yoshitomo Kajinami, Kousuke Yoshimoto
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Patent number: 8877835Abstract: Composite material comprising—one or more heat-activatable free-radical initiators selected from the group consisting of organic peroxides and/or initiators having labile carbon-carbon bonds and particles which have a core-shell structure and the core of which comprises one or more magnetic materials, while the shell comprises silicon dioxide.Type: GrantFiled: May 28, 2010Date of Patent: November 4, 2014Assignees: Evonik Degussa GmbH, United Initiatiors GmbH & Co. KGInventors: Harald Herzog, Konrad Rockstein, Stipan Katusic, Martin Kunz, Iris Nagl, Hanno Wolf
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Patent number: 8871182Abstract: The invention relates to nanocrystals, containing one or more metals as defined in the specification; having a size of 2 to 200 nm; having a defined, three-dimensional polyhedral structure, optionally functionalized by ligands and/or embedded crystals. The invention further relates to monodisperse assemblies of such nanocrystals, to formulations and devices comprising such nanocrystals as well as to the manufacture and use thereof.Type: GrantFiled: May 11, 2011Date of Patent: October 28, 2014Assignee: Eth ZurichInventors: Christophe Jan Lacroix, Christophe Chassard, Marcus Yaffee
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Publication number: 20140295410Abstract: Disclosed are a conjugate of a metal nanoparticle including a magnetic core and at least one light emitting material linked to the metal nanoparticle through a linker, wherein the linker has an affinity for a biological material and has changed structure after contacting a biological material, a biosensor including the conjugate, and a method of measuring a concentration of specific biological material in a biological sample using the conjugate or the biosensor.Type: ApplicationFiled: February 19, 2014Publication date: October 2, 2014Inventors: Shin Ae JUN, Dae ha Seo, Eun Joo JANG, Young-Wook Jun
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Publication number: 20140293529Abstract: A method apparatus and material are described for radio frequency passives and antennas. In one example, an electronic component has a synthesized magnetic nanocomposite material with aligned magnetic domains, a conductor embedded within the nanocomposite material, and contact pads extending through the nanocomposite material to connect to the conductor.Type: ApplicationFiled: March 29, 2013Publication date: October 2, 2014Inventors: Vijay K. Nair, Chuan Hu, Shawna M. Liff, Larry E. Mosley
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Patent number: 8834737Abstract: A method for making a carbon nanotube composite film is provided. A PVDF is dissolved into a first solvent to form a PVDF solution. A number of magnetic particles is dispersed into the PVDF solution to form a suspension. A carbon nanotube film is immersed into the suspension and then transferred into a second solvent. The carbon nanotube film structure is transferred from the second solvent and dried to form the carbon nanotube composite film.Type: GrantFiled: August 7, 2012Date of Patent: September 16, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Wei Xiong, Jia-Ping Wang, Kai-Li Jiang, Shou-Shan Fan
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Patent number: 8834715Abstract: According to one embodiment, a copper recovery apparatus includes a precipitation tank configured to precipitate copper hydroxide grains in water, a filter aid supplier, a mixing tank configured to mix the filter aid with a water to produce a suspension, a separator provided with a filter, a line configured to supply the suspension to the separator, thereby forming a precoat layer formed of the filter aid on the filter, a separation tank configured to receive the detached matter of the precoat layer discharged together with the detaching water from the separator to magnetically separate copper hydroxide grains and filter aid, a line configure to discharge and recover the detaching water from the separation tank, and a line configured to return the separated filter aid to the filter aid supplier from the separation tank.Type: GrantFiled: July 21, 2011Date of Patent: September 16, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Taro Fukaya, Kenji Tsutsumi, Atsushi Yamazaki, Ichiro Yamanashi, Hirofumi Noguchi, Yasutaka Kikuchi, Shuji Seki
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Patent number: 8828262Abstract: A nonaqueous magnetorheological fluid includes a primarily organic carrier liquid and magnetizable particles. The magnetorheological fluid also includes a buffer, a stabilizer, and water. A pH of the magnetorheological fluid is between 6.5 and 9.0.Type: GrantFiled: January 7, 2011Date of Patent: September 9, 2014Assignee: Lawrence Livemore National Security, LLCInventors: Joseph Arthur Menapace, Paul Richard Ehrmann
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Patent number: 8828264Abstract: A magnetic sheet containing a binder, a magnetic powder, and a fire retardant, wherein the fire retardant contains at least one of a silicon atom-containing melamine cyanurate and a carboxylic acid amide-containing melamine cyanurate.Type: GrantFiled: April 28, 2010Date of Patent: September 9, 2014Assignee: Dexerials CorporationInventors: Keisuke Aramaki, Yukio Tamate
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Patent number: 8821931Abstract: Micro-sized particles having a polymeric structure of cells are provided. Also provided is a method of producing micro-sized particles having a polymeric structure comprising: (1) forming a homogenous solution by heating a mixture of a high molecular weight polymer and a low molecular weight material, wherein said low molecular weight material makes up at least about 50% by weight of the homogenous solution, (2) forming a dispersed solution by dispersing the homogenous solution formed in step (1) into an inert material, (3) cooling the dispersed solution to cause the high molecular weight polymer to phase separate from the low molecular weight material, (4) forming solid particles comprised of said low molecular weight material trapped inside a structure of cells of said high molecular weight polymer, and (5) removing the solid particles from the dispersed solution.Type: GrantFiled: November 13, 2008Date of Patent: September 2, 2014Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Mindaugas Rackaitis, Naruhiko Mashita, Victor J. Foltz
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Publication number: 20140231697Abstract: A coated magnetic particle comprising an optionally porous magnetic polymer particle of a matrix polymer, said polymer particle having on a surface and/or in the pores thereof superparamagnetic crystals, said coated particle having a coat formed of a coating polymer, wherein said coated magnetic particle is essentially non-autofluorescent.Type: ApplicationFiled: March 27, 2014Publication date: August 21, 2014Applicant: LIFE TECHNOLOGIES ASInventors: Ellen WENG, Geir FONNUM, Grete MODAHL, Astrid MOLTEBERG, Erling FINNE, Torkel STENE
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Publication number: 20140225023Abstract: The present invention relates to ferrite particles for bonded magnet, having a volume-average particle diameter of 2.1 to 2.7 ?m and a particle diameter ×90 of 4.3 to 5.4 ?m wherein the ×90 represents a particle diameter at which a cumulative percentage of particles under sieve (undersize particles) based on a volume thereof is 90%, when determined from a particle size distribution thereof measured by using a laser diffraction type particle size distribution measuring apparatus.Type: ApplicationFiled: April 18, 2014Publication date: August 14, 2014Applicant: TODA KOGYO CORPORATIONInventors: Yasuhiko FUJII, Minoru OHSUGI, Yasushi NISHIO, Yosuke KOYAMA, Shigeru TAKARAGI
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Patent number: 8801956Abstract: A hexagonal crystal ferrite magnetic powder having high magnetic characteristics while having a small particle volume and a high specific surface area is provided, and a high-density magnetic recording medium using the powder. A method for producing a hexagonal crystal ferrite formed using a glass crystallization method includes the steps of: mixing a glass matrix with raw materials including iron, bismuth, a divalent metal (M1), a tetravalent metal (M2), any one kind (A) of barium, strontium, calcium, and lead, and at least one kind of rare earth element (represented by R) having a mole equal to or less than that of the iron; heating the mixed raw material to obtain a glass body; quenching the glass body, pulverizing the glass body, and performing a heat treatment, and washing the glass body after the heat treatment with an acid solution.Type: GrantFiled: January 29, 2010Date of Patent: August 12, 2014Assignee: Dowa Electronics Materials Co., Ltd.Inventors: Kenji Masada, Tomoyuki Ishiyama, Gousuke Iwasaki
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Patent number: 8801954Abstract: There is provided novel curable ink compositions comprising coated magnetic metal nanoparticles. In particular, there is provided ultraviolet (UV) curable gel inks comprising at least the coated magnetic metal nanoparticles, one curable monomer, a radiation activated initiator that initiates polymerization of curable components of the ink, a gellant. The inks may also include optional colorants and one or more optional additives. These curable gel UV ink compositions can be used for ink jet printing in a variety of applications.Type: GrantFiled: March 17, 2011Date of Patent: August 12, 2014Assignee: Xerox CorporationInventors: Gabriel Iftime, Naveen Chopra, Barkev Keoshkerian, Peter G. Odell, Marcel P. Breton