Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8133404 | Electromagnetic wave shielding material and sheet An electromagnetic wave shielding material and a sheet using the same are described. Also described is a gel state electromagnetic wave shielding material including an ionic liquid, and fine particles capable of reflecting, suppressing or absorbing an electromagneti... | 03/13/2012 |
| 8119021 | Functional nanoparticle filled carbon nanotubes and methods of their production Carbon nanotubes filled with a suspension or colloidal solution of functional nanoparticles and methods for production of carbon nanotubes loaded with functional nanoparticles are provided. ... | 02/21/2012 |
| 8075793 | Process for preparing magnetic graphitic materials, and materials thereof A process of preparing magnetic graphitic materials from graphite in a second container (3) that reacts with one of more transition metal oxide and in a first container (2) at a volume ratio of 1:1, in a closed reactor (1), heated up to a temper... | 12/13/2011 |
| 8070974 | Soft-magnetic material and process for producing articles composed of this soft-magnetic material The invention relates to a soft-magnetic material comprising a micro fraction composed of particles of a soft-magnetic material having a particle size in the range from 1 to 100 μm and a nano fraction composed of particles of a soft-magnetic material having a parti... | 12/06/2011 |
| 7998361 | Soft magnetic material and powder magnetic core A soft magnetic material includes: a plurality of composite magnetic particles formed from a metal magnetic particle and an insulative coating surrounding a surface of the metal magnetic particle and containing metallic salt phosphate and/or oxide; and a lubricant f... | 08/16/2011 |
| 7993541 | Quantum confined atom (QCA) based nanomagnets The present application is directed to the preparation and use of a class of nanoparticles that contain a single Quantum Confined dopant. A QCA nanocrystal comprises of a plurality of host atoms in a nanocrystal of a size of less than 10 nm with a single atom of a d... | 08/09/2011 |
| 7959821 | Electromagnetism suppressing material, electromagnetism suppressing device, and electronic appliance An electromagnetism suppressing material has an increased electromagnetism suppressing effect, can be flexibly formed in various shapes, and is inexpensive. An electromagnetism suppressing device uses the electromagnetism suppressing material, and an electronic appl... | 06/14/2011 |
| 7691284 | Tunable variable emissivity materials and methods for controlling the temperature of spacecraft using tunable variable emissivity materials Tunable variable emissivity materials, methods for fabricating tunable variable emissivity materials, and methods for controlling the temperature of a spacecraft using tunable variable emissivity materials have been provided. In an exemplary embodiment, a variable e... | 04/06/2010 |
| 7597817 | Magnetic doped perovskite oxides Novel metal oxide compositions are disclosed. These ferromagnetic or ferrimagnetic compositions have resitivities that vary between those of semiconducting and insulating materials, and they further exhibit Curie temperatures greater than room temperature (i.e., gre... | 10/06/2009 |
| 7582222 | Transition metal-doped oxide semiconductor exhibiting room-temperature ferromagnetism An oxide semiconductor doped with a transition metal and exhibiting room-temperature ferromagnetism is disclosed. The transition metal-doped oxide semiconductor is preferably manufactured in powder form, and the transition metal is preferably evenly distributed thro... | 09/01/2009 |
| 7476330 | Low temperature susceptibility compensation An composition exhibiting a desired value of magnetic susceptibility, which can be used to fabricate components in an NMR device, and method thereof, wherein the composition comprises a metal ion selected from the group consisting of Gd+3, Fe+3 | 01/13/2009 |
| 7332101 | Permanently linked, rigid, magnetic chains One aspect of the present invention relates to a permanently linked, rigid, magnetic chain of particles prepared by sol-gel methods. A second aspect of the present invention relates to a method of preparing a permanently linked, rigid, magnetic chain of particles co... | 02/19/2008 |
| 7175778 | Self-aligning QCA based nanomaterials The present application is directed to the preparation and use of a class of nanoparticles called Quantum Confined Atoms or QCA's. A QCA is a particle of material comprising a plurality of host atoms in a nanoparticle of a size of less than 10 nm with a single atom ... | 02/13/2007 |
| 7115213 | Ferromagnetic ZnO-type compound including transition metallic element and method for adjusting ferromagnetic characteristics thereof The ZnO-type compound contains at least one metal selected from a group of transition elements consisting of V, Cr, Fe, Co, Ni, Rh and Ru. Ferromagnetic characteristics are adjusted by adjusting densities of these transition elements, by varying combinations of two ... | 10/03/2006 |
| 7063801 | Composite material and method for preparing the same, and raw composite material used for preparing the same The invention relates to an improvement in tourmaline known as a functional ore. In particular, the invention provides a composite having a novel formation in which a far infrared radiation emitting property and others among tourmaline's properties are effectively e... | 06/20/2006 |
| 7045074 | Magnetic cluster, magnetic recording medium, method for fabricating a magnetic cluster and method for fabricating a magnetic recording medium A magnetic cluster includes a (CoC2)4 tetragonal structure with Co—C2—Co bonds, and a molecular formula (CoC2)x (x: natural number). ... | 05/16/2006 |
| 7011764 | Method for producing a magnetic device A magnetic device and method for making it involve a magnetic device specifically constructed of grains in a matrix. The matrix may be cement or plaster. The grains have an average diameter that is greater than their magnetic domains. The device may be applied to sh... | 03/14/2006 |
| 6712989 | Composite magnetic body and electromagnetic interference suppressing body using the same A composite magnetic body is obtained without the use of halogen-based or halogen-containing materials, such as, halogen-based binding agent of halogen-based resins or elastomers, and bromine-based fire retardents. The composite magnetic body (1) comprises a ... | 03/30/2004 |
| 6689287 | Ferroelectric and ferromagnetic material having improved impedance matching The subject invention includes a composite material comprising a ferroelectric material and a ferromagnetic material having a loss factor (tan δ) for the composite material which includes a dielectric loss factor of the ferroelectric material and a magne... | 02/10/2004 |
| 6682834 | Magnetic storage medium having a high recording density A magnetic storage medium includes a magnetic layer of a Co alloy of a system Co--Cr--Pt--B--Cu, wherein the magnetic layer has a thickness t and a remnant magnetic flux density Br satisfying a relationship (t×Br) 2.0 nT.multidot.mà... | 01/27/2004 |
| 6666991 | Fluorescent or phosphorescent composition A fluorescent or luminous composition, comprising a multilayered film-coated powder having at least two coating films on a base particle, and a fluorescent or luminous substance; the composition, wherein at least one layer of the coating films contains th... | 12/23/2003 |
| 6641919 | Resin-bonded magnet A resin-bonded type magnet molded from a composition comprising a magnetic powder and a resin powder in which a resin binder comprises at least one unsaturated polyester resin cured product as the main ingredient. The resin binder contains a peroxide or a... | 11/04/2003 |
| 6638442 | Polycrystalline ferromagnetic metal oxide and method of manufacturing the same A polycrystalline ferromagnetic metal oxide has a density of 97% or more to less than 100%; and a method of manufacturing a polycrystalline ferromagnetic metal comprises a step of treating a polycrystalline ferromagnetic metal oxide under a high pressure ... | 10/28/2003 |
| 6617038 | Electromagnetic wave absorbing silicone rubber compositions A silicone rubber composition comprising a soft magnetic powder, an optional heat conductive powder, and a surface treating agent selected from (a) an organopolysiloxane containing at least one alkoxy radical, hydroxyl radical or functional organic radica... | 09/09/2003 |
| 6533956 | Powder for magnetic ferrite, magnetic ferrite, multilayer ferrite components and production method thereof A multilayer ferrite component is produced with powder for magnetic ferrite, characterized by having the composition of Fe2 O3 : 40 to 51 mol %, CuO: 7 to 30 mol %, ZnO: 0.5 to 35 mol % and MgO: 5 to 35 mol %, in which a peak of part... | 03/18/2003 |
| 6514428 | Electromagnetic wave absorbing, heat conductive silicone rubber compositions A silicone rubber composition loaded with a soft magnetic metal powder and optionally, a heat conductive filler and having in the cured state a thermal conductivity of at least 2.0 w/mK is suitable for forming heat dissipating sheets having both a heat tr... | 02/04/2003 |
| 6487774 | Method of forming an electronic component using ink A method of manufacturing an electronic component utilizing an ink jet method using an ink including water or organic solvent, and one of metal powder, ceramic powder, magnetic powder, glass powder, and resistor powder with particle size of 0.001 μm or m... | 12/03/2002 |
| 6478982 | Ferrite magnet powder and magnet using the magnet powder, and method for preparing them The ferrite magnet powder of the present invention is magnet powder having, as the major phase, a La--Co magnetoplumbite ferrite where La and Co are substituted for Sr and Fe, respectively, represented by (1-x)SrO.(x/2)La2 O3.(n-y/2)... | 11/12/2002 |
| 6465390 | Porous composite particles and process for producing the same Porous composite particles contain 80 to 98% by weight of a filling material and 2 to 20% by weight of carbon, and have an average pore diameter of not more than 5 nm when measured with respect to pores existing in both the surface and inside portions the... | 10/15/2002 |
| 6426156 | Magnetostatic wave device A magnetic garnet single crystal film used for a magnetostatic wave device has a Pb content in the range of from more than zero to about 4,000 ppm by weight.... | 07/30/2002 |
| 6419498 | Magnetic material-inverting display panel A magnetic material-inverting display panel which provides a clear display and the erasure by having a liquid dispersion, which has a predetermined yield value and contains a magnetic display material in fine particle form having magnetic poles of opposit... | 07/16/2002 |
| 6337215 | Magnetic particles having two antiparallel ferromagnetic layers and attached affinity recognition molecules Magnetic particles are prepared and used for selective separation of affinity bound partners in solution. The magnetic particles have large magnetic moments which can be made such that different strengths of magnetic moments and/or different magnetic fiel... | 01/08/2002 |
| 6316235 | Preparation and use of magnetically susceptible polymer particles Polymer particles are formed containing molecular memory recognition sites and magnetically susceptible components. The particles are prepared by co-polymerizing one or more monomers and a cross-linking agent in the presence of at least one imprint molecu... | 11/13/2001 |
| 6299031 | Dispensing apparatus and method A pusher is disposed to drive material out of a dispensing outlet and extends into a first chamber that is configured to contain a hydraulic fluid disposed to drive the pusher. A second chamber is configured to exchange hydraulic fluid with the first cham... | 10/09/2001 |
| 6290868 | Field-structured material media and methods for synthesis thereof The present application is directed to a new class of composite materials, called field-structured composite (FSC) materials, which comprise a oriented aggregate structure made of magnetic particles suspended in a nonmagnetic medium, and to a new class of... | 09/18/2001 |
| 6261471 | Composition and method of making a ferrofluid having an improved chemical stability The invention relates to a composition and a process for producing a magnetic fluid comprising finely divided magnetic particles covered with at least one surfactant. A fluorocarbon-silane surface modifier is employed which is added to cover the free oxid... | 07/17/2001 |
| 6203717 | Stable magnetorheological fluids Magnetorheological fluid compositions that include a carrier fluid, magnetic-responsive particles and an organoclay. These fluids exhibit superior soft sedimentation.... | 03/20/2001 |
| 6171489 | Polymer beads and method for preparation thereof The present invention relates to a process for producing polymer beads incorporating solid particles and to the novel polymer beads per se. The invention provides a process for producing polymer beads incorporating solid particulate material, which proces... | 01/09/2001 |
| 6149832 | Stabilized magnetorheological fluid compositions Magnetorheological fluids containing carbonyl iron particles with surface hydroxyl groups and high specific surface area in combination with nonpolar vehicles such as polyalphaolefins and glycol esters can be formulated to resist particle separation under... | 11/21/2000 |
| 6146691 | High-performance matched absorber using magnetodielectrics A composite electromagnetic absorber provides increased EMR absorption while being thinner and/or lighter than prior art EMR absorbers. To accomplish this, synthetic dielectric materials are combined with either synthetic magnetic materials or magneticall... | 11/14/2000 |
