With Titanium, Zirconium, Silicon, Hafnium, Germanium, Or Tin Patents (Class 252/62.59)
  • Patent number: 9984799
    Abstract: A ferrite composition comprises a main component and a sub component. The main component is comprised of 25.0 to 49.8 mol % iron oxide in terms of Fe2O3, 5.0 to 14.0 mol % copper oxide in terms of CuO, 0 to 40.0 mol % zinc oxide in terms of ZnO, and a remaining part of nickel oxide. The sub component includes 0.2 to 5.0 wt % silicon oxide in terms of SiO2, 0.10 to 3.00 wt % bismuth oxide in terms of Bi2O3, and 0.10 to 3.00 wt % cobalt oxide in terms of Co3O4, with respect to the main component.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: May 29, 2018
    Assignee: TDK CORPORATION
    Inventors: Ryuichi Wada, Kouichi Kakuda, Hiroki Choto, Yukari Akita, Yukio Takahashi, Masahiro Endo, Takashi Suzuki, Takahiro Sato, Akinori Ohi
  • Patent number: 9948129
    Abstract: Various embodiments of a single structure multiple mode antenna are described. The antenna is preferably constructed having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals facilitates connection of the electrical connections thereby providing numerous electrical connection configurations and enables the antenna to be selectively tuned to various frequencies and frequency bands. An internal switch circuit is provided that facilitates electrical connection of the various terminals and frequency tuning.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: April 17, 2018
    Assignee: NuCurrent, Inc.
    Inventors: Vinit Singh, Alberto Peralta, Ajit Rajagopalan, Jason Luzinski, Jacob Babcock, Christine A. Frysz
  • Patent number: 9941590
    Abstract: Various embodiments of a single structure multiple mode antenna are described. The antenna is preferably constructed having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals facilitates connection of the electrical connections thereby providing numerous electrical connection configurations and enables the antenna to be selectively tuned to various frequencies and frequency bands. In addition, the antenna comprises a variety of magnetic shielding materials that are positioned through the antenna structure. These magnetic materials are designed to help shape the magnetic fields being emitted by the respective inductor coils.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: April 10, 2018
    Assignee: NuCurrent, Inc.
    Inventors: Jason Luzinski, Alberto Peralta, Vinit Singh, Ajit Rajagopalan, Jacob Babcock, Christine A. Frysz
  • Patent number: 9941729
    Abstract: Various embodiments of a single structure multiple mode antenna are described. The antenna is preferably constructed of a single layer having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals facilitates connection of the electrical connections thereby providing numerous electrical connection configurations and enables the antenna to be selectively tuned to various frequencies and frequency bands.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: April 10, 2018
    Assignee: NuCurrent, Inc.
    Inventors: Alberto Peralta, Vinit Singh, Ajit Rajagopalan, Jason Luzinski, Jacob Babcock, Christine A. Frysz
  • Patent number: 9757880
    Abstract: A matrix material dispersed with one or more susceptor structures can be formed into a feedstock for an additive manufacturing process. The one or more susceptor structures can be excited by an energy field such as an electric field, a magnetic field, an electromagnetic field, or any combination thereof, to produce heat. The heat that is produced can be transferred to the matrix material that surrounds the one or more susceptor structures to provide heat treatment to the matrix material. The heat treatment can improve the material and mechanical properties of three dimensional objects formed from the feedstock.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: September 12, 2017
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Christopher J. Rothfuss, Vincenzo Casasanta, III, Michael Keoni Manion
  • Patent number: 9721607
    Abstract: The magnetic recording medium has a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein the ferromagnetic powder is ferromagnetic hexagonal ferrite powder, and the ferromagnetic hexagonal ferrite powder has a crystallite volume as determined by X-ray diffraction analysis ranges from 1,000 nm3 to 2,400 nm3, and a ratio of the crystallite size Dx(107) obtained from a diffraction peak of a (107) plane to a particle size in a direction of an easy axis of magnetization DTEM as determined by observation with a transmission electron microscope, Dx(107)/DTEM, is greater than or equal to 1.1.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 1, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Toshio Tada, Akinori Sugishima, Tatsuya Yamashita, Norihito Kasada, Masahito Oyanagi
  • Patent number: 9598313
    Abstract: The present application provides a self-healing material which comprises silica sol as self-healing agent encapsulated by a polymeric shell. The self-healing material may be further embedded in a concrete mixture to heal micro-cracks in concrete. A method for preparing the self-healing material is also provided.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: March 21, 2017
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Lok Hang Keung, Noel Peter Bengzon Tan, Wing Ho Choi, Wai Chak Lam
  • Patent number: 9514776
    Abstract: The method of manufacturing hexagonal ferrite magnetic particles includes providing hexagonal ferrite magnetic particles by conducting calcination of particles comprising an iron salt and an alkaline earth metal salt to cause fertilization; and further includes preparing the particles comprising an iron salt and an alkaline earth metal salt by adhering a glass component, followed by the alkaline earth metal salt, to the iron salt; and conducting calcination of the particles prepared to form a calcined product in which hexagonal ferrite is detected as a principal component in X-ray diffraction analysis.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: December 6, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Yasushi Hattori, Kazufumi Omura
  • Patent number: 9040158
    Abstract: A generic route for synthesis of asymmetric nanostructures. This approach utilizes submicron magnetic particles (Fe3O4—SiO2) as recyclable solid substrates for the assembly of asymmetric nanostructures and purification of the final product. Importantly, an additional SiO2 layer is employed as a mediation layer to allow for selective modification of target nanoparticles. The partially patched nanoparticles are used as building blocks for different kinds of complex asymmetric nanostructures that cannot be fabricated by conventional approaches. The potential applications such as ultra-sensitive substrates for surface enhanced Raman scattering (SERS) have been included.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: May 26, 2015
    Assignee: UChicago Argonne LLC
    Inventors: Yugang Sun, Yongxing Hu
  • Publication number: 20150108393
    Abstract: A sintered body contains Z-type hexagonal ferrite, Bi2O3, and a glass material as starting materials. The additive ratio by weight of the Bi2O3 to the Z-type hexagonal ferrite in the starting materials is within a range from 5:100 to 7:100. The sintered body is obtained by sintering of the starting materials and contains the Z-type hexagonal ferrite as a main phase.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 23, 2015
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Mitsuru ODAHARA, Yukie SHIMIZU
  • Publication number: 20150102254
    Abstract: A ferrite composition comprises a main component and a sub component. The main component is comprised of 40.0 to 49.8 mol % iron oxide in terms of Fe2O3, 5.0 to 14.0 mol % copper oxide in terms of CuO, 0 to 32.0 mol % zinc oxide in terms of ZnO, and a remaining part of nickel oxide. The sub component includes 0.5 to 4.0 wt % tin oxide in terms of SnO2, 0.10 to 1.00 wt % bismuth oxide in terms of Bi2O3, and 0.21 to 3.00 wt % cobalt oxide in terms of Co3O4, with respect to the main component.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 16, 2015
    Inventors: Ryuichi WADA, Kouichi KAKUDA, Yukari AKITA, Yukio TAKAHASHI, Yusuke NAGAI, Takashi SUZUKI, Takahiro SATO
  • Patent number: 8940179
    Abstract: The present invention relates to a method for preparing magnetite nanoparticles from low-grade iron ore using solvent extraction and magnetite nanoparticles prepared by the same. According to the method for magnetite nanoparticles from low-grade iron ore of the present invention, it is possible to prepare high-purity magnetite nanoparticles having a purity of 99% or higher by solvent extraction using low-grade iron ore as a starting material, and thus it is possible to reduce the processing cost and the amount of energy used, thus supplying a high-efficiency magnetite nanoparticle adsorbent, which can be industrially applied to wastewater treatment or desalination plant, in large quantities at low cost. In particular, it is possible to effectively treat livestock wastewater, heavy metal wastewater, oil discharged into rivers, etc. at low cost, thus significantly contributing to the prevention of environmental pollution.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: January 27, 2015
    Assignee: Korea Institute of Geoscience and Mineral Resources
    Inventors: Yong Jae Suh, Dae Sup Kil, Hee Dong Jang
  • Patent number: 8920670
    Abstract: A magnetic material of an embodiment includes: first magnetic particles that contain at least one magnetic metal selected from the group including Fe, Co, and Ni, are 1 ?m or greater in particle size, and are 5 to 50 ?m in average particle size; second magnetic particles that contain at least one magnetic metal selected from the group including Fe, Co, and Ni, are smaller than 1 ?m in particle size, and are 5 to 50 nm in average particle size; and an intermediate phase that exists between the first magnetic particles and the second magnetic particles.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: December 30, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichi Harada, Tomohiro Suetsuna, Toshihide Takahashi, Seiichi Suenaga
  • Patent number: 8906983
    Abstract: Iron-silicon oxide particles with a core and an outer shell have improved heating rates in a magnetic field. The core contains maghemite, magnetite, and haematite. The outer shell is essentially or exclusively silicon dioxide. The crystallite diameter of the haematite determined by X-ray diffraction is greater than 120 nm. A ratio of the brightness of the Debye-Scherrer diffraction ring by electron diffraction at a lattice plane spacing of 0.20+/?0.02 nm, comprising maghemite and magnetite, to the brightness of the Debye-Scherrer diffraction ring by electron diffraction at a lattice plane spacing of 0.25+/?0.02 nm, comprising maghemite, magnetite and haematite, is no more than 0.2.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: December 9, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Stipan Katusic, Peter Kress, Peter Albers, Harald Herzog
  • Publication number: 20140346389
    Abstract: Thermally annealed superparamagnetic core shell nanoparticles of an iron oxide core and a silicon dioxide shell having high magnetic saturation are provided. A magnetic core of high magnetic moment obtained by compression sintering the thermally annealed superparamagnetic core shell nanoparticles is also provided. The magnetic core has little core loss due to hysteresis or eddy current flow.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Michael Paul ROWE
  • Publication number: 20140333405
    Abstract: A composite ferrite composition comprises a magnetic material and a non-magnetic material. A mixing ratio of said magnetic material and said non-magnetic material is 20 wt %:80 wt % to 80 wt %:20 wt %. Ni—Cu—Zn based ferrite is used as the magnetic material. Oxides of Zn, Cu, and Si are at least included in a main component of said non-magnetic material. Borosilicate glass is included in a subcomponent of said non-magnetic material.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 13, 2014
    Applicant: TDK CORPORATION
    Inventors: Hiroki CHOTO, Takashi SUZUKI, Shinichi KONDO, Yuya OSHIMA, Masahiro ENDO, Masaki TAKAHASHI
  • Patent number: 8845919
    Abstract: Iron-silicon oxide particles with a core-shell structure, which have a) a BET-surface area of 10 to 80 m2/g, b) a thickness of the shell of 2 to 30 nm and c) a content of iron oxide of 60 to 90% by weight, of silicon dioxide of 10 to 40% by weight, based in each case on the enveloped particles, where d) the proportion of iron, silicon and oxygen is at least 99% by weight, based on the enveloped particles, and where e) the core is crystalline and the iron oxides comprise haematite, magnetite and maghemite, f) the shell consists of amorphous silicon dioxide and g) at least one compound or a plurality of compounds consisting of the elements silicon, iron and oxygen is/are present between shell and core.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: September 30, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Stipan Katusic, Harald Herzog, Peter Kress, Armin Wiegand
  • Publication number: 20140234864
    Abstract: A method for magnetic cellular manipulation may include contacting a composition with a biological sample to form a mixture. The composition may include a plurality of particles. Each particle in the plurality of particles may include a magnetic substrate. The magnetic substrate may be characterized by a magnetic susceptibility greater than zero. The composition may also include a chargeable silicon-containing compound. The chargeable silicon-containing compound may coat at least a portion of the magnetic substrate. The biological sample may include cells and/or cellular structures. The method may also include applying a magnetic field to the mixture to manipulate the composition.
    Type: Application
    Filed: August 23, 2013
    Publication date: August 21, 2014
    Inventor: Kristie Marie Krug
  • Patent number: 8808568
    Abstract: A magnetorheological material comprises a magnetic particle and a ceramic material, wherein the magnetorheological material is in a dried form and further wherein a portion of the ceramic material is in the form of a nanocrystalline coating over the entire exterior surface of the magnetic particle and another portion of the ceramic material is in the form of a free nanocrystal. A magnetorheological material comprises a magnetic particle having a ceramic material coating over an external surface thereof as a result of a coating process, and a free nanocrystal of the ceramic material in the form of a residual by-product of the coating process.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: August 19, 2014
    Assignee: University of Rochester
    Inventors: Rui Shen, Hong Yang, Shai N. Shafrir, Chunlin Miao, Mimi Wang, Joni Mici, John C. Lambropoulos, Stephen D. Jacobs
  • Patent number: 8801956
    Abstract: 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: Grant
    Filed: January 29, 2010
    Date of Patent: August 12, 2014
    Assignee: Dowa Electronics Materials Co., Ltd.
    Inventors: Kenji Masada, Tomoyuki Ishiyama, Gousuke Iwasaki
  • Patent number: 8795546
    Abstract: This invention relates to a magnetic ceramic material comprising, as main components, (a) at least one magnetic iron oxide selected from the group consisting of Fe3O4 and ?-Fe2O3, and (b) an amorphous phase, and a process for producing a magnetic ceramic material, comprising (1) heating a microorganism-derived iron oxide ceramic material containing an iron atom, and (2) reducing the iron oxide ceramic material obtained in Step (1) by heating in the presence of hydrogen gas.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: August 5, 2014
    Assignee: National University Corporation Okayama University
    Inventors: Jun Takada, Hideki Hashimoto, Tatsuo Fujii, Makoto Nakanishi
  • Publication number: 20140131288
    Abstract: This disclosure is directed at a microparticle for use in water treatment comprising a core layer; a shell layer, deposited on and encasing the core layer; and a photoactive layer surrounding the shell layer. The disclosure also provides a method for producing same.
    Type: Application
    Filed: May 17, 2012
    Publication date: May 15, 2014
    Inventors: Frank Gu, Timothy Michael Carter Leshuk, Stuart Linley
  • Publication number: 20140124698
    Abstract: The present invention relates to a method for preparing magnetite nanoparticles from low-grade iron ore using solvent extraction and magnetite nanoparticles prepared by the same. According to the method for magnetite nanoparticles from low-grade iron ore of the present invention, it is possible to prepare high-purity magnetite nanoparticles having a purity of 99% or higher by solvent extraction using low-grade iron ore as a starting material, and thus it is possible to reduce the processing cost and the amount of energy used, thus supplying a high-efficiency magnetite nanoparticle adsorbent, which can be industrially applied to wastewater treatment or desalination plant, in large quantities at low cost. In particular, it is possible to effectively treat livestock wastewater, heavy metal wastewater, oil discharged into rivers, etc. at low cost, thus significantly contributing to the prevention of environmental pollution.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 8, 2014
    Applicant: Korea Institute of Geoscience and Mineral Resources
    Inventor: Korea Institute of Geoscience and Mineral Resour
  • Publication number: 20140109446
    Abstract: A display device and a display method using magnetic particles are disclosed. The display method includes: applying a first magnetic field to a plurality of particles in a state where the plurality of particles having a magnetic property and a certain color are dispersed in a solvent so that the plurality of particles are aligned in a direction parallel to a direction of the first magnetic field, and thus a plurality of particle chains are formed; and applying a second magnetic field to at least a part of the formed plurality of particle chains so that at least a part of the plurality of particle chains moves in a direction close to a display surface in an area to which the second magnetic field is applied, and thus the certain color is displayed on the display surface.
    Type: Application
    Filed: February 7, 2013
    Publication date: April 24, 2014
    Applicant: NANOBRICK CO., LTD.
    Inventors: Jae Hyun Joo, Do Hyun Kim, Youn Jung Park, In Sook Lee
  • Patent number: 8696925
    Abstract: Embodiments disclosed herein include methods of modifying synthetic garnets used in RF applications to reduce or eliminate Yttrium or other rare earth metals in the garnets without adversely affecting the magnetic properties of the material. Some embodiments include substituting Bismuth for some of the Yttrium on the dodecahedral sites and introducing one or more high valency ions to the octahedral and tetrahedral sites. Calcium may also be added to the dodecahedral sites for valency compensation induced by the high valency ions, which could effectively displace all or most of the Yttrium (Y) in microwave device garnets. The modified synthetic garnets with substituted Yttrium (Y) can be used in various microwave magnetic devices such as circulators, isolators and resonators.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: April 15, 2014
    Assignee: Skyworks Solutions, Inc.
    Inventors: David Bowie Cruickshank, Michael D. Hill
  • Patent number: 8679362
    Abstract: Disclosed herein are a nickel-zinc-copper (NiZnCu) based ferrite composition containing 0.001 to 0.3 parts by weight of bivalent metal, 0.001 to 0.3 parts by weight of trivalent metal, and 0.001 to 0.5 parts by weight of tetravalent metal based on 100 parts by weight of main component containing 47.0 to 50.0 mol % of Fe2O3, 15.0 to 27.0 mol % of NiO, 18.0 to 25.0 mol % of ZnO, and 7.0 to 13.0 mol % of CuO, and a multilayered chip device and a toroidal core using the same. According to exemplary embodiments of the present invention, a bivalent metal, a trivalent metal, and a tetravalent are contained in a NiZuCu ferrite, thereby making it possible to provide a ferrite composition having excellent quality factor (Q) characteristics. Moreover, it is possible to provide a toroidal core and a multilayered chip device having excellent sinterability, permittivity, and quality factor (Q) characteristics using the ferrite composition.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: March 25, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Myeong Gi Kim, Sung Yong An, Ic Seob Kim
  • Publication number: 20140077121
    Abstract: A generic route for synthesis of asymmetric nanostructures. This approach utilizes submicron magnetic particles (Fe3O4—SiO2) as recyclable solid substrates for the assembly of asymmetric nanostructures and purification of the final product. Importantly, an additional SiO2 layer is employed as a mediation layer to allow for selective modification of target nanoparticles. The partially patched nanoparticles are used as building blocks for different kinds of complex asymmetric nanostructures that cannot be fabricated by conventional approaches. The potential applications such as ultra-sensitive substrates for surface enhanced Raman scattering (SERS) have been included.
    Type: Application
    Filed: September 18, 2012
    Publication date: March 20, 2014
    Applicant: UChicago Argonne, LLC
    Inventors: Yugang Sun, Yongxing Hu
  • Patent number: 8668839
    Abstract: Disclosed is a MnZnCo-based ferrite consisting of base constituents, accessory constituents, and inevitable impurities, which MnZnCo-based ferrite is characterized by adding silicon oxide (SiO2 conversion): 50-400 mass ppm and calcium oxide (CaO conversion): 1000-4000 mass ppm as secondary constituents to base constituents consisting of iron oxide (Fe2O3 conversion): 51.0-53.0 mol %, zinc oxide (ZnO conversion): greater than 12.0 mol % and less than 18.0 mol %, cobalt oxide (CoO conversion): 0.04-0.60 mol %, and manganese oxide (MnO conversion): remainder, and keeping phosphorus, boron, sulfur, and chlorine of the inevitable impurities to phosphorous: less than 3 mass ppm, boron: less than 3 mass ppm, sulfur: less than 5 mass ppm, and chlorine: less than 10 mass ppm. This MnZnCo-based ferrite has the superior characteristics of always having incremental permeability [mu]? of 2000 or greater across a wide temperature range of ?40 DEG C. to 85 DEG C.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: March 11, 2014
    Assignee: JFE Chemical Corporation
    Inventors: Hirofumi Yoshida, Yukiko Nakamura, Satoshi Goto
  • Patent number: 8647525
    Abstract: A ferrite composition includes a main component having 46.0 to 49.8 mol % of an iron oxide in terms of Fe2O3, 5.0 to 14.0 mol % of a copper oxide in terms of CuO and 8.0 to 32.0 mol % of a zinc oxide in terms of ZnO, and a remainder of the main component is composed of a nickel oxide; and as subcomponents, with respect to 100 wt % of the main component, 0.5 to 6.0 wt % of a silicon oxide in terms of SiO2 and 0.01 to 2.0 wt % of a boron oxide in terms of B2O3. Further, as a subcomponent, 0.01 to 0.17 wt % of potassium oxide in terms of K2O or 0.3 to 2.0 wt % of tin oxide in terms of SnO2 may be included.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: February 11, 2014
    Assignee: TDK Corporation
    Inventors: Ryuichi Wada, Shou Kawadahara, Yukio Takahashi, Raitarou Masaoka, Takashi Suzuki, Hiroshi Momoi
  • Patent number: 8617700
    Abstract: Disclosed herein is an article and thermoplastic composition comprising a polysiloxane-polycarbonate, optionally, a polycarbonate, and an X-ray contrast agent comprising X-ray scattering atoms having an atomic number of greater than or equal to 22, wherein a 3.2 mm thick article molded from the thermoplastic composition has a notched Izod impact strength of greater than or equal to about 620 J/m, when measured at a temperature of 0° C. according to ASTM D256-04, and has an Equivalent Al Thickness of greater than 0.51 mm, when irradiated with 50 kV X-ray radiation, and wherein melt volume rates determined under a load of 1.2 kg at 300° C. (ASTM D1238-04), a melt volume rate measured at a dwell time of 18 minutes increases relative to that measured at 6 minutes by less than or equal to 31%. A method of improving contrast in a polycarbonate composition, and specific articles are also disclosed.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: December 31, 2013
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Vandita Pai-Paranjape, Christopher L. Hein
  • Patent number: 8591760
    Abstract: A ferrite magnet and a ferrite sintered magnet including a ferrite magnetic material are provided. A main phase of the ferrite magnetic material includes a ferrite phase having a hexagonal crystal structure, and metal element composition expressed by Ca1-w-x-yR wSr xBayFezMm wherein 0.25<w<0.5, 0.01<x<0.35, 0.0001<y<0.013, y<x, 8.7<z<9.9, 1.0<w/m<2.1, 0.017<m/z<0.055 and Si component is at least included as a sub-component, and wherein; when content y1 mass % of the Si component in the ferrite magnetic material, with respect to SiO2, is shown on Y-axis and a total content x1 of z and m is shown on X-axis, a relation between x1 and y1 is within a range surrounded by 4 points placed on X-Y coordinate having the X and Y axes.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: November 26, 2013
    Assignee: TDK Corporation
    Inventors: Shigeki Yanagida, Takahiro Mori, Hiroyuki Morita, Nobuhiro Suto, Tatsuya Katoh, Yoshihiko Minachi
  • Publication number: 20130303658
    Abstract: Iron-silicon oxide particles with a core and an outer shell have improved heating rates in a magnetic field. The core contains maghemite, magnetite, and haematite. The outer shell is essentially or exclusively silicon dioxide. The crystallite diameter of the haematite determined by X-ray diffraction is greater than 120 nm. A ratio of the brightness of the Debye-Scherrer diffraction ring by electron diffraction at a lattice plane spacing of 0.20+/?0.02 nm, comprising maghemite and magnetite, to the brightness of the Debye-Scherrer diffraction ring by electron diffraction at a lattice plane spacing of 0.25+/?0.02 nm, comprising maghemite, magnetite and haematite, is no more than 0.2.
    Type: Application
    Filed: December 7, 2011
    Publication date: November 14, 2013
    Applicant: Evonik Degussa GmbH
    Inventors: Stipan Katusic, Peter Kress, Peter Albers, Harald Herzog
  • Patent number: 8562851
    Abstract: A ferrite material and an electronic component which employs sintered ferrite formed from the ferrite material. The ferrite material is obtained by adding, as minor ingredients, 0.06-0.50 parts by weight of bismuth oxide in terms of Bi2O3, 0.11-0.90 parts by weight of titanium oxide in terms of TiO2, and 0.06-0.46 parts by weight of barium oxide in terms of BaO to a ferrite powder comprising iron oxide, copper oxide, zinc oxide, and nickel oxide as major ingredients. The weight ratio among the bismuth oxide, the titanium oxide, and the barium oxide is as follows: when the proportion of the bismuth oxide in terms of Bi2O3 is taken as 1.00, then the proportion of the titanium oxide in terms of TiO2 is 1.08-2.72 and that of the barium oxide in terms of BaO is 0.72-1.20.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: October 22, 2013
    Assignees: Soshin Electric Co., Ltd., NGK Insulators, Ltd.
    Inventors: Yui Kumura, Yukio Isowaki, Tadashi Otagiri
  • Patent number: 8557290
    Abstract: The present invention relates to nanoconjugates. In particular, the present invention provides nanoconjugates for diagnostic (e.g., imaging), research, and clinical (e.g., targeted treatment) applications.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: October 15, 2013
    Assignee: Northwestern University
    Inventors: Ai-Guo Wu, Tatjana Paunesku, Gayle E. Woloschak
  • Publication number: 20130257035
    Abstract: The present invention is related to magnetic pigments comprising a transparent flaky homogeneously composed substrate having two parallel major surfaces and a coating comprising a layered structure composed of a hematite and a magnetite layer, to a process for the production of said pigments as well as to their use.
    Type: Application
    Filed: November 14, 2011
    Publication date: October 3, 2013
    Applicant: MERCK PATENT GMBH
    Inventors: Kaiman Shimizu, Fumiko Sasaki, Yukitaka Watanabe, Masahiko Yazawa
  • Publication number: 20130256583
    Abstract: A method of preparing a dispersion of stabilized iron oxide nanoparticles that comprise cores and coatings on the cores, which comprise zwitterionic functional groups chemically bound to the cores, using a single solution that comprises dissolved iron ions and a zwitterion silane and/or a hydrolyzed product of the zwitterion silane.
    Type: Application
    Filed: April 3, 2013
    Publication date: October 3, 2013
    Inventors: Joseph B. Schlenoff, Zaki G. Estephan
  • Patent number: 8545713
    Abstract: The present invention relates to black magnetic iron oxide particles comprising magnetite as a main component, wherein when the black magnetic iron oxide particles are molded into a tablet shape, an electric resistance value of the tablet in an alternating current electric field is controlled to produce an impedance of not less than 2×106 ?cm as measured in a characteristic frequency range thereof. The black magnetic iron oxide particles according to the present invention can provide a toner capable of exhibiting a good charging performance and a uniform charging property under the high-temperature and high-humidity conditions, so that when developing an electrostatic latent image therewith, it is possible to obtain toner images having a high resolution or definition, and further the use of heavy metal elements in the black magnetic iron oxide particles can be minimized.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: October 1, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Ryo Iwai, Mamoru Kamigaki, Nobuya Shimo, Naoki Uchida
  • Patent number: 8524395
    Abstract: The present invention relates to nonaqueous electrolyte secondary batteries and durable anode materials and anodes for use in nonaqueous electrolyte secondary batteries. The present invention also relates to methods for producing these anode materials. In the present invention, a metal-semiconductor alloy layer is formed on an anode material by contacting a portion of the anode material with a displacement solution. The displacement solution contains ions of the metal to be deposited and a dissolution component for dissolving a part of the semiconductor in the anode material. When the anode material is contacted with the displacement solution, the dissolution component dissolves a part of the semiconductor in the anode material thereby providing electrons to reduce the metal ions and deposit the metal on the anode material. After deposition, the anode material and metal are annealed to form a uniform metal-semiconductor alloy layer.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: September 3, 2013
    Assignee: Enovix Corporation
    Inventors: Murali Ramasubramanian, Robert Spotnitz
  • Patent number: 8518289
    Abstract: A Mn—Zn—Co ferrite core includes a basic component, sub-components, and unavoidable impurities. As the sub-components, silicon oxide (in terms of SiO2): 50-400 mass ppm and calcium oxide (in terms of CaO): 1000-4000 mass ppm are added to the basic component consisting of iron oxide (in terms of Fe2O3): 51.0-53.0 mol %, zinc oxide (in terms of ZnO): more than 12.0 mol % and 18.0 mol % or less, cobalt oxide (in terms of CoO): 0.04-0.60 mol %, and manganese oxide (in terms of MnO): balance; Phosphorus, boron, sulfur, and chlorine in the unavoidable impurities are reduced as follows, phosphorus: less than 3 mass ppm, boron: less than 3 mass ppm, sulfur: less than 5 mass ppm, and chlorine: less than 10 mass ppm; and a ratio of a measured specific surface of the Mn—Zn—Co ferrite core to an ideal specific surface of the Mn—Zn—Co ferrite core satisfies: Measured specific surface/ideal specific surface <1500.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: August 27, 2013
    Assignee: JFE Chemical Corporation
    Inventors: Hirofumi Yoshida, Yukiko Nakamura, Satoshi Goto
  • Publication number: 20130169488
    Abstract: A new magnetic substance having a high magnetic permeability and a low magnetic permeability loss over a wide frequency bandwidth, a composite material for antennas using the new magnetic substance and a polymer, and an antenna using the composite material for antennas.
    Type: Application
    Filed: September 6, 2012
    Publication date: July 4, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-sig KUM, Nak-hyun KIM, Hyun-jin KIM, Seung-kee YANG, Joong-hee LEE
  • Patent number: 8470194
    Abstract: A Ni—Zn—Cu ferrite material having excellent DC bias characteristics is provided by adding zinc silicate thereto. The above problem can be solved by Ni—Zn—Cu ferrite particles which comprise a spinel-type ferrite and zinc silicate, which have a composition comprising 36.0 to 48.5 mol % of Fe2O3, 7.0 to 38 mol % of NiO, 4.5 to 40 mol % of ZnO, 5.0 to 17 mol % of CuO and 1.0 to 8.0 mol % of SiO2, all amounts being calculated in terms of the respective oxides, and which have a ratio of an X-ray diffraction intensity from a 113 plane of the zinc silicate to an X-ray diffraction intensity from a 311 plane of the spinel-type ferrite is 0.01 to 0.12; a green sheet obtained by forming a material comprising the Ni—Zn—Cu ferrite particles into a film; and a Ni—Zn—Cu ferrite sintered ceramics.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: June 25, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Yoji Okano, Tomohiro Dote, Norio Sugita
  • Patent number: 8444872
    Abstract: Disclosed is a magnetic material having high Hc and High Curie point, which is capable of controlling such magnetic characteristics without requiring rare or expensive raw materials. Specifically disclosed is a magnetic material composed of particles of a magnetic iron oxide which is represented by the following general formula: ?-AxByFe2?x?yO3 or ?-AxByCzFe2?x?y?zO3 (wherein A, B and C each represents a metal excluding Fe and different from each other, satisfying 0<x, y, z<1), with ?-Fe2O3 as a main phase.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: May 21, 2013
    Assignees: The University of Tokyo, Dowa Electronics Materials Co., Ltd.
    Inventors: Shin-ichi Ohkoshi, Shunsuke Sakurai, Takenori Yorinaga, Kazuyuki Matsumoto, Shinya Sasaki
  • Publication number: 20130105397
    Abstract: New magnetic dye-adsorbent catalyst has been described in this invention, which is the modification of conventional magnetic photocatalyst. The catalyst consists of a composite particle having a core-shell structure, with a magnetic particle as a core and a dye-adsorbent (which may also exhibit photocatalytic activity) as a shell. The shell is made up of 1-dimensional (1-D) nanostructure, which enhances the specific surface-area of the conventional magnetic photocatalyst. The new magnetic dye-adsorbent catalyst removes an organic dye from an aqueous solution via surface-adsorption mechanism; while, the conventional magnetic photocatalyst uses the photocatalytic degradation mechanism.
    Type: Application
    Filed: March 29, 2010
    Publication date: May 2, 2013
    Applicant: Council of Scientific & Industrial Research
    Inventors: Satyajit V. Shukla, Krishna G. Warrier, Manoj R. Varma, Madadhin T. Lajina, Narayani Harsha, Pattelath R. Chalappurath
  • Patent number: 8416051
    Abstract: A magnetic material constituted by a grain-compacted body comprising a plurality of metal grains made of a Fe—Si—M soft magnetic alloy (where M is a metal element more easily oxidized than Fe) and an oxide film formed on the surface of the metal grains; wherein there are bonding portions via the oxide film formed on the surfaces of adjacent metal grains and direct bonding portions of metal grains in locations where the oxide film is not present.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: April 9, 2013
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Hitoshi Matsuura, Kenji Otake
  • Patent number: 8404338
    Abstract: An article and thermoplastic composition including polycarbonate, a polysiloxane-polycarbonate and an x-ray detectable or metal detectable agent having good magnetic permeability and/or electrical conductivity wherein the composition may be used in articles for food preparation. The thermoplastic compositions are useful in forming molds for manufacturing a food product, such as chocolate molds.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: March 26, 2013
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Christopher Luke Hein, Jan-Pleun Lens, Vandita Pai-Paranjape, Constant Peek, Robert Dirk van de Grampel
  • Patent number: 8404142
    Abstract: A MnZn ferrite having excellent characteristics of an incremental permeability ?? value of 250 or greater in a wide temperature range of 0 to 85° C. and an incremental permeability ?? value of 400 or greater at 65° C. when an 80 A/m direct current magnetic field is applied is provided. The MnZn ferrite has basic components that comprise: ferric oxide (in terms of Fe2O3): 51.0 to 54.5 mol %, zinc oxide (in terms of ZnO): 8.0 to 12.0 mol %, and manganese oxide (in terms of MnO): the balance, sub components that comprise: silicon oxide (in terms of SiO2): 50 to 400 mass ppm, and calcium oxide (in terms of CaO): 50 to 400 mass ppm, and unavoidable impurities phosphorous, boron, sulfur and chlorine that are restricted to phosphorous: less than 3 mass ppm, boron: less than 3 mass ppm, sulfur: less than 5 mass ppm, and chlorine: less than 10 mass ppm.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: March 26, 2013
    Assignee: JFE Chemical Corporation
    Inventors: Hirofumi Yoshida, Yukiko Nakamura, Satoshi Goto
  • Publication number: 20130050041
    Abstract: Disclosed are synthetic garnets and related devices that can be used in radio-frequency (RF) applications. In some embodiments, such RF devices can include garnets having reduced or substantially nil Yttrium or other rare earth metals. Such garnets can be configured to yield high dielectric constants, and ferrite devices, such as TM-mode circulators/isolators, formed from such garnets can benefit from reduced dimensions. Further, reduced or nil rare earth content of such garnets can allow cost-effective fabrication of ferrite-based RF devices. In some embodiments, such ferrite devices can include other desirable properties such as low magnetic resonance linewidths. Examples of fabrication methods and RF-related properties are also disclosed.
    Type: Application
    Filed: May 30, 2012
    Publication date: February 28, 2013
    Applicant: SKYWORKS SOLUTIONS, INC.
    Inventors: David Bowie CRUICKSHANK, Rickard Paul O'DONOVAN, Iain Alexander MACFARLANE, Brian MURRAY, Michael David HILL
  • Publication number: 20130033354
    Abstract: Disclosed herein are a ferrite powder having a core-shell structure, the core being made of iron (Fe) or iron-based compounds comprising iron (Fe) and the shell being made of metal oxides, a ferrite material comprising the ferrite powder and the glass, and multilayered chip components including the ferrite layer using the ferrite material, inner electrodes, and outer electrodes. According to the exemplary embodiments of the present invention, it is possible to provide the ferrite material capable of improving the change in the inductance L value in response to applied current by suppressing magnetization at high current. The multilayered chip components including the ferrite material according to the exemplary embodiment of the present invention can also be used in a band of MHz.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 7, 2013
    Inventors: Sung Yong An, Myeong Gi Kim, Ic Seob Kim
  • Patent number: 8337714
    Abstract: The present invention provides ferrite powders for bonded magnet capable of suppressing increase of SFD, while widening a particle size distribution for obtaining flowability and compressed density, and also capable of suppressing deterioration of orientation and magnetizability, and provides a process for a production magnetoplumbite-type ferrite powders containing an oxide of at least one or more kinds of transition metals selected from a group consisting of Zr, Ti, Zn, Co, Mn, and Ni, having a mean particle size of 0.20 ?m or more and less than 5.00 ?m, being the ferrite powders for bonded magnet with the ratio of particles having particle size of 1 ?m or less being 20 mass % or more in the magnetoplumbite-type ferrite powder size distribution obtained by a laser diffraction type particle size distribution analyzer.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 25, 2012
    Assignees: Dowa Electronics Materials Co., Ltd., Dowa F-Tec Co., Ltd.
    Inventors: Kazuyuki Nakaue, Shinichi Suenaga, Masahiro Kojima, Hiroya Ikeda, Satoru Tsuboi
  • Publication number: 20120319030
    Abstract: Disclosed is a multifunctional colloidal nanocomposite derived from nucleophilic substitution-induced layer-by-layer assembly in organic media. The multifunctional colloidal nanocomposite includes: silica colloids coated with aminopropyltrimethoxysilane; and a plurality of nanoparticle layers highly densely adsorbed onto the coated silica colloids. The multifunctional colloidal nanocomposite has a highly dense multilayer structure in which 2-bromo-2-methylpropionic acid (BMPA)-stabilized quantum dot nanoparticles and an amine-functionalized polymer are adsorbed onto silica colloids using a nucleophilic substitution reaction-based layer-by-layer assembly method. Due to this structure, the multifunctional colloidal nanocomposite can be dispersed in various organic solvents, including polar and nonpolar organic solvents.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 20, 2012
    Inventor: Jin Han CHO