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Patents - MAGNETIC MATERIALS

Category list

July 2006
MAGNETIC MATERIALS
WO 2005/081667 A3 (03/30/2006) Iowa State University Research Foundation, Inc.
Jiles D.C. Paulsen J.A. Snyder J.E. Lo C.C.H. Ring A.P. Bormann K.A.
COBALT FERRITE BASED MAGNETOSTRICTIVE MATERIALS FOR MAGNETIC STRESS SENSOR AND ACTUATOR APPLICATIONS
A2 published (09/09/05)
WO 2006/023321 A2 (03/02/2006) Williams Advanced Materials, Inc.
Willson M.T. Grohman H.L.
SLOTTED THIN-FILM SPUTTER DEPOSITION TARGETS FOR FERROMAGNETIC MATERIALS
A slotted sputtering target for a magnetron sputtering system for thin-film deposition particularly suited for ferromagnetic target materials such as cobalt, nickel, and iron or an alloy including more than one of these elements.
WO 2005/067472 A3 (03/02/2006) Freescale Semiconductor, Inc.
Pietambaram S.V. Dave R.W. Slaughter J.M. Sun J.
SYNTHETIC ANTIFERROMAGNET STRUCTURES FOR USE IN MTJS IN MRAM TECHNOLOGY
A2 published (07/28/2005)
WO 2006/015321 A1 (02/09/2006) Boise State University
Punnoose A.
TRANSITION METAL-DOPED OXIDE SEMICONDUCTOR EXHIBITING ROOM-TEMPERATURE FERROMAGNETISM AND METHOD OF SENSING A GAS BY DETECTING CHANGE IN MAGNETIC PROPERTIES
A transition metal doped oxide semiconductor eg iron-doped tin dioxide or cobalt-doped tin dioxide exhibiting room-temperature ferromagnetism is preferably manufactured in powder form, and the transition metal is preferably evenly distributed throughout the material. Gases may be detected by passing them across a material and measuring the change in magnetic properties of the material.
January 2006
WO 2005/101378 A1 (10/27/05) TDK Corporation
Sbiaa R, Sato, I.
COMPOSITE FREE LAYER FOR STABILIZING MAGNETORESISTIVE HEAD
A magnetoresistive read head includes a spin valve having at least one free layer spaced apart from at least one pinned layer by a spacer. The free layer includes a cobalt compound as a thin film including at least one of Co-X, CoFe-X and CoNi-X where X is an element from the lanthanoid family (a 4-f element). The content of Co is higher than 80%.
WO 2005/067362 A1 (07/21/05) Nippon Denkai Ltd
Yagihashi N., Nakaya K.
COPPER FOIL FOR ELECTROMAGNETIC WAVE SHIELD FILTER AND ELECTROMAGNETIC WAVE SHIELD FILTER
A copper foil for use for the electromagnetic wave shield provided on the front of a display and having low apparent brightness and chromaticity, few patterns and little unevenness, ensures good visibility of the display. The electromagnetic wave shield is produced by forming a colouring layer made of copper, cobalt and zinc on the surface of a copper foil.
February 2005
"WO 2005/006359 A1 (01/20/05) Matsushita Electric Industrial Co., Ltd."
"Inuzuka, T."
MAGNETIC ELEMENT
"A magnetic element exhibiting excellent high frequency characteristics, comprising magnetic ferrite mainly containing iron oxide, cobalt oxide and zinc oxide, a conductor coil formed on the magnetic ferrite, an insulator covering the conductor coil, and a plurality of external electrodes being connected with the conductor coil."
"WO 2005/005341 A1 (01/20/05) Matsushita Electric Industrial Co., Ltd"
"Inuzuka, T."
MAGNETIC FERRITE AND MAGNETIC DEVICE USING SAME
"A magnetic ferrite exhibiting excellent performance in the GHz band, and a magnetic device with excellent high frequency characteristics which has a core of such a magnetic ferrite, which contains iron oxide, cobalt oxide and zinc oxide as the main components, and also titanium, tantalum, indium, zirconium, lithium, tin or vanadium as a sub-component."
"WO 2004/103909 A1 (12/02/04) Pacific Metals Co., Ltd."
"Shon, S. W.; Bae, J. W.; Kim, M. K.; Park, Y. C.; Hong, Sung Il"
"MAGNETOPLUMBITE TYPE FERRITE PARTICLE, ANISOTROPIC SINTERED MAGNET, AND PRODUCING METHOD OF THE SAME"
"Ferrite particles with a hexagonal structure have a composition: SrFe2nLx+yO3n+? (where, L is lithium or lithium and cobalt, x represents composition ratio of lithium, y represents composition ratio of cobalt, and x, y, and n satisfy the following ranges: 0.01? x? 0.3, 0.0? y? 0.3, and 5.5? n? 6.3) The sintered magnet is prepared from the ferrite particles."
WO 2004/100194 A3 (12/29/04) Intel Corporation
"Gardner, D.; Schrom, G.; Hazucha, P."
ON-DIE MICRO-TRANSFORMER STRUCTURES WITH MAGNETIC MATERIALS
A2 published (11/18/04)
WO 2004/099960 A1 (11/18/04) Intel Corporation
"Gardner, D.; Kursun, V.; Narendra, S."
FULLY INTEGRATED DC-DC CONVERTER UTILIZING ON-CHIP HIGH FREQUENCY INDUCTORS
"A fully integrated DC-to-DC switching converter allowing for a relatively high switching frequency has an inductor containing magnetic material that may be amorphous CoZrTa, CoFeHfO, CoAlO, FeSiO, CoFeAlO, CoNbTa, CoZr, and other amorphous cobalt alloys. In the structure, oxide insulates the conductors from the magnetic material."
WO 2004/100194 A2 (11/18/04) Intel Corporation
"Gardner,D.; Schrom, G.; Hazucha, P."
ON-DIE MICRO-TRANSFORMER STRUCTURES WITH MAGNETIC MATERIALS
"A transformer integrated on a die, comprises a set of conductive lines formed on the die within one layer and interconnected among each other so that no two lines belonging to any one winding are nearest neighbours. The conductive lines iare surrounded by a magnetic material, eg amorphous CoZrTa, CoFeHfO, CoAlO, FeSiO, CoFeAlO, CoNbTa and CoZr. "
WO 2004/097806 A1 (11/11/04) Fujitsu Limited
"Ikeda, S.; Kubomiya, T.; Matsuoka, M."
MAGNETIC HEAD
"A magnetic head consisting of a light magnetic pole is produced by forming a magnetic film, by alternately laminating magnetic layers containing mainly iron Fe and cobalt Co and insulation layers, formed as a discontinuous film. A light magnetic pole high in Bs value and magnetic permeability can thus be formed, providing a magnetic head of high coercive force allowing recording onto a high-density medium."
WO 2004/095436 A1 (11/04/04) Showa Denko K.K.
"Ohmori, M."
SUBSTRATE FOR PERPENDICULAR MAGNETIC RECORDING MEDIUM AND METHOD FOR PRODUCTION THEREOF
"A substrate for use in a perpendicular magnetic recording medium includes a blank substrate and a film of phosphorus- or boron-containing cobalt alloy formed on the blank substrate by electroless plating, the electroless plated film of the cobalt alloy having surface roughness Ra in the range of 0.05 nm to 1 nm. "

 

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