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| Number | Title | Issue Date |
| 7708902 | Magnetic material, and memory and sensor using same A magnetic material composed of ε-InxFe2-xO3 (wherein 0 | 05/04/2010 |
| 7368211 | Magnetic toner To provide a magnetic toner which is excellent in durability and developability even in the case of being applied to high-speed developing process or being used in a large-capacity process cartridge amount of toner in which is increased, and which has high degree of... | 05/06/2008 |
| 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 |
| 7326360 | Cobalt ferrite based magnetostrictive materials for magnetic stress sensor and actuator applications Magnetostrictive material based on cobalt ferrite is described. The cobalt ferrite is substituted with transition metals (such manganese (Mn), chromium (Cr), zinc (Zn) and copper (Cu) or mixtures thereof) by substituting the transition metals for iron or cobalt to f... | 02/05/2008 |
| 7288497 | Ceramic powder A ceramic powder including silicon dioxide, iron oxide, iron, magnesium oxide, aluminum oxide, and a trace element group. The silicon dioxide occupies the powder of total weight from 81% to 86%; the iron oxide occupies the powder of total weight from 12% to 16%; the... | 10/30/2007 |
| 7261949 | Thick film composition yielding magnetic properties The invention is directed to a magnetic thick film composition comprising particles of permanent magnetic materials dispersed in organic medium wherein the medium comprises a polymer selected from polyurethane, phenoxy and mixtures thereof, and organic solvent. ... | 08/28/2007 |
| 7189340 | Phosphor, light emitting device using phosphor, and display and lighting system using light emitting device A phosphor (A) comprising a host material composed of a compound having a garnet crystal structure represented by the general formula (I): M1aM2bM3cOd   (I) (wherein... | 03/13/2007 |
| 7163667 | Production process for oxide magnetic material and oxide magnetic material A production process for an oxide magnetic material comprising the steps of blending raw material powder so as to take the composition of a hexagonal ferrite including: at least one kind of an element A selected from the group consisting of Ba, Sr and Ca; Co and Cu;... | 01/16/2007 |
| 7147796 | Iron oxide particles and method for production thereof Iron oxide particles having the surface thereof coated with a layer of a complex iron oxide containing Al and Mg are disclosed. The total content of Al and Mg in the complex iron oxide layer is 0.1 to 2.5% by weight based on the whole iron oxide particles. The Mg co... | 12/12/2006 |
| 7101489 | Composite magnetic material and a method for producing the same A composite magnetic material contains first magnetic particles made of a first magnetic material and second magnetic particles made of a second magnetic material, the first and second magnetic particles being mixed with each other. A frequency characteristic of the... | 09/05/2006 |
| 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 |
| 6974358 | Discrete magnets in dielectric forming metal/ceramic laminate and process thereof The present invention relates generally to a new dielectric forming metal/ceramic laminate magnet and process thereof. More particularly, the invention encompasses a new process for fabrication of a large area laminate magnet with a significant number of holes, inte... | 12/13/2005 |
| 6933799 | Method of controlling intermodulation distortion of non-reciprocal device A non-reciprocal device includes at least one ferrimagnetic member (21 or 22). By controlling the FMR linewidth ΔH of the ferrimagnetic members (21 and 22), intermodulation distortion is controlled. ... | 08/23/2005 |
| 6908568 | Preparation of oxide magnetic material and oxide magnetic material An oxide magnetic material is prepared by wet molding in a magnetic field a slurry containing a particulate oxide magnetic material, water and a polyhydric alcohol having the formula: Cn(OH)nHn+2 wherein n is from 4 to 100 as a dispe... | 06/21/2005 |
| 6902685 | Oxide magnetic material A ferrite magnet powder and a ferrite magnet exhibiting improved magnetic properties are provided at a reduced manufacturing cost. An application product and manufacturing methods thereof are also provided. An oxide magnetic material includes, as a main phase, a fer... | 06/07/2005 |
| 6897248 | UV curable ferromagnetic compositions The present invention discloses an ultraviolet light curable ferromagnetic composition and method for making such a composition that may be used to produce a ferromagnetic coating on a suitable substrate. These coatings may be used to produce printed capacitors and ... | 05/24/2005 |
| 6893581 | Composite magnetic material and a method for producing the same A composite magnetic material contains first magnetic particles made of a first magnetic material and second magnetic particles made of a second magnetic material, the first and second magnetic particles being mixed with each other. A frequency characteristic of the... | 05/17/2005 |
| 6872251 | Method for manufacturing single crystal ceramic powder, and single crystal ceramic powder, composite material, and electronic element A method for manufacturing single crystal ceramic powder is provided. The method includes a powder supply step for supplying powder consisting essentially of ceramic ingredients to a heat treatment area with a carrier gas, a heat treatment step for heating the powde... | 03/29/2005 |
| 6852245 | Process for producing granules for being molded into ferrite, granules for being molded into ferrite, green body and sintered body A composition for producing granules for molding ferrite, which comprises a ferrite slurry at least having raw ferrite powders; an ethylene-modified polyvinyl alcohol whose ethylene modified amount is from 4 to 10 mol %, average polymerization degree is from 500 to ... | 02/08/2005 |
| 6793842 | Single-crystal ferrite fine powder A ferrite fine powder having a mean particle size of 0.1 to 30 μm and made of spherical single-crystal particles. The ferrite fine powder has superior physical properties and excellent magnetic properties desirable for use as a raw material for a dust core of coils... | 09/21/2004 |
| 6780555 | Black magnetic iron oxide particles and magnetic toner Black magnetic iron oxide particles having an average particle diameter of 0.05 to 1.0 μm have a three-phase structure comprising: a core portion containing at least one metal element other than Fe selected from the group consisting of Mn, Zn, Cu, Ni, Cr, Cd... | 08/24/2004 |
| 6773620 | Oxide magnetic material and production method of the same An oxide magnetic material of the invention is an oxide magnetic material of a hexagonal ferrite containing Sr, has grain boundary phases in the surrounding of the crystal grains, contains not less than 2% by weight, preferably not less than 5% by weight, of Sr in t... | 08/10/2004 |
| 6767478 | Mn-Zn ferrite and coil component using same The Mn—Zn ferrite of the present invention contains basic components of 44.0 to 50.0 mol % (50.0 mol % is excluded) Fe2O3, 4.0 to 26.5 mol % ZnO and the remainder MnO, and has a real part ε′ of complex relative permittivity of 20,000 or le... | 07/27/2004 |
| 6716893 | UV curable ferromagnetic compositions The present invention discloses an ultraviolet light curable ferromagnetic composition and method for making such a composition that may be used to produce a ferromagnetic coating on a suitable substrate. These coatings may be used to produce printed capacitors and ... | 04/06/2004 |
| 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 |
| 6652767 | Composition for plastic magnet In a composition for a plastic magnet, containing an Nd--Fe--B based alloy powder and a ferrite magnetic material powder mixed to a resin material, the Nd--Fe--B based alloy powder has particle sizes distributed in a range of 100 to 400 μm, and the ferri... | 11/25/2003 |
| 6641751 | Magnetic garnet single crystal and faraday rotator using the same The present invention relates to a magnetic garnet single crystal and a Faraday rotator using the magnetic garnet single crystal and the object of the present invention is to provide a magnetic garnet single crystal which suppresses a generation of crysta... | 11/04/2003 |
| 6528166 | Nickel composite particle and production process therefor Nickel composite particles having a layer of a nickel-containing spinel on at least a part of the surface of nickel particles, or nickel composite particles having an oxide layer of metals other than nickel on at least a part of the surface of nickel part... | 03/04/2003 |
| 6527973 | Magnetic garnet material and magnetooptical device using the same A magnetooptical device which defines a Faraday rotation angle θ expressed by 44 deg.ࣘθࣘ46 deg. when light having a wavelength λ (1570 nmࣘλࣘ1620 nm) impinges thereupon. A magnetic garnet material expressed by a general formula: Bia | 03/04/2003 |
| 6517934 | Magnetic recording medium containing nanometer-size substantially spherical or ellipsoidal fe-b-re magnetic powder and method for producing magnetic powder A rare earth-iron-boron magnetic powder comprising a rare earth element, iron and boron, which has a coercive force of 80 to 400 kA/m, a saturation magnetization of 10 to 25 μW/g, an average particle size of 5 to 200 nm, and a particulate or ellipsoidal ... | 02/11/2003 |
| 6495483 | Linear metallocene polymers containing acetylenic and inorganic units and thermosets and ceramics therefrom Transition metal-containing ceramic or carbonaeous material are formed from novel linear polymers containing a random distribution of repeating acetylenic units, organotransition metal complexes, siloxane, boron, silicon, and/or carborane-siloxane units. ... | 12/17/2002 |
| 6458286 | Manganese-zinc (Mn-Zn) based ferrite MnZn ferrite comprises a main component comprising iron oxide 52.5 to 54.0 mol % in terms of Fe2O3, zinc oxide 7.7 to 10.8 mol % in terms of ZnO, and manganese oxide of the remaining, and sub-components of silicon oxide 60 to 140 ppm in terms of SiO2... | 10/01/2002 |
| 6451220 | High density magnetic recording compositions and processes thereof A magnetic composition comprised of cobalt ferrite nanoparticles dispersed in an ionic exchange resin.... | 09/17/2002 |
| 6416681 | Granule for forming ferrite body, ferrite sintered product and production method thereof Granule for forming ferrite is provided by mixing powders of ferrite raw material, polyvinyl alcohol as a binder and polyethylene glycol added as plasticizer and having molecular weight being 1000 to 6000, and forming granules.... | 07/09/2002 |
| 6284150 | Bonded magnet, magnet roll, a ferrite powder used therefor and method for producing same A ferrite powder for bonded magnets having a substantially magnetoplumbite-type crystal structure and an average diameter of 0.9-2 μm, the ferrite powder having a basic composition represented by the following general formula: (A1-x Rx | 09/04/2001 |
| 6264875 | Preparation of multi-purpose magnetized and sintered ceramics The present invention relates to a method for preparing multi-purpose magnetized and sintered ceramics, comprising the steps of adding water to a mixture of Maek-Ban Stone and soft sericite, stirring and maturing at a room temperature, sintering, and irra... | 07/24/2001 |
| 6210598 | Mn-Zn ferrite A Mn--Zn ferrite having large electrical resistance, which can withstand use in high frequency region exceeding 1 MHz, is provided. The Mn--Zn ferrite comprises the following basic components: 44.0 to 50.0 mol % Fe2 O3, 4.0 to 26.5 m... | 04/03/2001 |
| 6180022 | Mn-Zn ferrite A Mn--Zn ferrite having large electrical resistance, which can withstand the use in high frequency region exceeding 1 MHz, is provided. The Mn--Zn ferrite comprises the following basic components: 44.0 to 50.0 mol % Fe2 O3, 4.0 to 26... | 01/30/2001 |
