Patents
Patents for H01F 1 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties (23,146)
02/2004
02/19/2004US20040031543 Iron-boron-rare earth (neodymium or praseodymium) based magnet with enhanced coercive force by increasing a content of boron and, containing a small amount of aluminum, silicon, copper, chromium, nickel, and manganese; also lower cost
02/19/2004DE19949631B4 Verbundabsorber für elektromagnetische Wellen, Verfahren zum Anordnen des Verbundabsorbers und reflexionsfreier Raum mit diesem Verbundabsorber Composite electromagnetic wave absorber, method for arranging the composite absorber and an anechoic room with this composite absorber
02/19/2004DE10217998B4 Aus Magnetpulver gepreßter metallischer Dauermagnet sowie Metallmatrix-Bindesystem und Verfahren zum Herstellen solcher Dauermagnete Of metallic magnetic powder pressed permanent magnet and metal matrix binding system and method of making such permanent magnets
02/18/2004EP1389785A1 Oxide magnetic material
02/18/2004CN1476617A Bulk amorphous metal magnetic component
02/18/2004CN1475583A Unidirectional electromagnetic steel plate with good magnetic character and its mfg. method
02/18/2004CN1475460A Method of preparing crystalline nanometer particle
02/18/2004CN1475459A Nanometer particle containing inorganic nucleus
02/18/2004CN1139084C Magnetic core for saturable reactor, multi-output switching regulator and computer having multi-output switching regulator
02/18/2004CN1139083C Radially anisotropic sintered R-Fe-B-Based magnet and production method thereof
02/18/2004CN1139082C Cast alloy for production of rare earth magnet and method for producing cast alloy and magnet
02/18/2004CN1138863C Steel sheet for heat shrink band and method for producing the same
02/17/2004US6693506 Magnetic sticking sheet and method of producing same
02/17/2004US6692849 Simultaneous prevention of head wear and head clogging: ferromagnetic iron particles having a spindle shape and given average major axis length, and a binder resin as magnetic layer
02/17/2004US6692650 Magnetorheological fluid and process for preparing the same
02/17/2004US6692582 Hard magnetic alloy, hard magnetic alloy compact and method for producing the same
02/12/2004WO2004013873A1 Process for producing rare earth-iron-boron magnet
02/12/2004WO2004013872A1 Permanent magnet and process for producing the same
02/12/2004WO2004013365A1 Nonoriented magnetic steel sheet, member for rotary machine and rotary machine
02/12/2004US20040028948 Cobalt carbide compound
02/12/2004US20040028946 Permanent magnet and method for preparation thereof
02/12/2004US20040028549 Laminated cores of ferrite stainless steels
02/12/2004US20040027774 Photothermal magnetic drive device driving method, potothermal magnetic drive device and production method for ni based alloy with low-temperature curie temperature using this
02/12/2004US20040027220 Half-cycle transductor with a magnetic core, use of half-cycle transductors and method for producing magnetic cores for half-cycle transductors
02/12/2004US20040026654 Oxide magnetic material
02/12/2004US20040025975 Magnetic alloy or intermetallic
02/12/2004US20040025974 Controlling particle size; akllloy of rare earth element and transition metal; compaction
02/12/2004DE10205332B4 Verfahren zur Herstellung von magnetischen Nanoteilchen A process for preparing magnetic nanoparticles
02/12/2004DE10154016B4 Magnetflüssigkeit und Verfahren zur ihrer Herstellung Magnetic fluid and process for its preparation
02/11/2004EP1388152A2 Iron-based rare earth alloy nanocomposite magnet and method for producing the same
02/11/2004EP1387876A1 The new chemical species of a magnecule
02/11/2004CN1475018A Magnetic amplifier choke with magnetic core, use of magnetic amplifier choke and method for producing magnetic core for magnetic amplifier choke
02/11/2004CN1474418A Method for producing quick cooling alloy for magnet
02/11/2004CN1474417A High specific saturated magnetizing strengh Fe3O4 micro particles and its preparing method
02/11/2004CN1138341C Clutter rejection apparatus
02/11/2004CN1138285C Corrosion-resistant permanent magnet and method for manufacturing same
02/11/2004CN1138018C Article monitoring system
02/11/2004CN1138014C Non-orientation electromagnetic steel plate with low iron loss and high magnetic flux density performance and its manuacturing method
02/10/2004US6689490 Display element for employment in a magnetic anti-theft security system
02/10/2004US6689455 Ferromagnetism powders in binder
02/10/2004US6689287 Ferroelectric and ferromagnetic material having improved impedance matching
02/10/2004US6689183 Mixture of iron-based particles having a first particle size distribution and ferrite particles having a second particle size distribution; core components for alternating-current applications
02/05/2004US20040023030 Outer coating comprising at least one ionizable stabilizing material having at least one functionalized group.
02/05/2004US20040022958 Contains (i) a polymeric material having a glass transition temperature (Tg) of from -15 degrees C. to 110 degrees C. and a number-average molecular weight (Mn) of from 3,000 to 1,000,000 and ii) an inorganic material.
02/05/2004US20040022937 Especially monodisperse nanoparticles having a crystalline mixed spinel ferrite core with a surfactant coating.
02/05/2004US20040021542 Powder core and high-frequency reactor using the same
02/05/2004US20040021539 Magnetic element with switchable domain structure
02/05/2004US20040021126 Magnetorheological fluid composition and a process for preparation thereof
02/05/2004US20040020569 Iron-based rare earth alloy nanocomposite magnet and method for producing the same
02/05/2004US20040020563 Coarsely pulverizing a rare earth alloy sintered body by a hydrogen pulverization process; finely pulverizing the first coarse powder, preparing a second fine powder by pulverizing an alloy block;sintering a mixed powder
02/05/2004US20040020327 Method for producing nanoparticles of magnetically hard ordered alloy phase
02/05/2004US20040020046 Deforming conductive particles by application of a stress; mixing the deformed conductive particles with a binder that includes a thermosetting resin as a main component
02/04/2004EP1386886A1 Nanoparticle having an inorganic core
02/04/2004EP1386681A1 Method for producing granulated powder of r-fe-b type alloy and method for producing r-fe-b type alloy sintered compact
02/04/2004CN1473337A Permanent magnet, magnetic core having magnet has bias magnet and inductance parts using the core
02/04/2004CN1472753A Permanent-magnetic binding material and producing method thereof
02/04/2004CN1137496C Coil element
02/03/2004US6686205 Parallel synthesis and analysis
02/03/2004US6685882 Iron-cobalt-vanadium alloy
01/2004
01/29/2004WO2004010442A1 Solid material comprising a structure of almost-completely-polarised electronic orbitals, method of obtaining same and use thereof in electronics and nanoelectronics
01/29/2004WO2004010441A2 High-temperature stable magnetic masking material
01/29/2004WO2004009605A2 Controlled room temperature synthesis of magnetic metal oxide nanoclusters within a diblock copolymer matrix
01/29/2004US20040016560 Method for producing a magnetic device
01/29/2004US20040016477 Method for producing a magnetic alloy and apparatus for producing the same
01/28/2004EP1384236A1 Manufacturing soft magnetic components using a ferrous powder and a lubricant
01/28/2004CN1471592A 氧化镁微粒聚集体 MgO particle aggregates
01/28/2004CN1470668A High-strength low heat-expansion Fe-Ni-Co series alloy thin band with good magnetic characteristic for shadow mask
01/28/2004CN1136589C High-remanence rare-earth magnetic powder and its preparing process
01/28/2004CN1136588C Improved rare earth-Fe-B magnets and manufacturing method for the same
01/27/2004US6682813 Excellent dispersibility in a vehicle, especially such a vehicle composed of a binder resin having a sulfonate or carboxylate group, and in which an orientation and a packing density in coating film are improved.
01/22/2004US20040014077 Delivering a first component of a first material and a first component of a second material to first and second region on a substrate, delivering a second component of second material to first and second region, simultaneously reacting component
01/22/2004US20040013593 Rare earth metal oxysulfide cool storage material and cool storage device
01/21/2004EP1383143A1 Solid material for magnet
01/21/2004EP1382717A1 Unidirectional silicon steel sheet excellent in adhesion of insulating coating film imparting tensile force
01/21/2004EP1382046A1 Compounds having giant magnetoresistance and spin-polarized tunnels, the production thereof and their use
01/21/2004EP1381578A1 Method for the production of ferrite magnets
01/21/2004CN1469906A Composition for synthetic resin composition and formed resin magnet
01/21/2004CN1135576C Process for producing oxide magnet
01/21/2004CN1135574C Composite magnetic material and its producing method and application
01/21/2004CN1135573C Method for producing single directional silicon steel plate and excellent magnetic character
01/21/2004CN1135572C Rare earth bonded magnet, and rare earth magnet composition
01/21/2004CN1135571C Rare earth binding magnet and composition for the same
01/20/2004US6680000 Mixture of magnetic powder and bisamide compound
01/15/2004US20040008430 Reflecting mirrors shaped with magnetic fields
01/15/2004US20040007291 Comprises ferric oxide source, injecting steam through ferric oxide source to infuse with cations, injecting steam into heated chamber housing laminated magnetic core, then oxidizing; dielectrics
01/15/2004US20040007290 Steel sheet for magnetic shields and manufacturing method thereof
01/15/2004US20040007289 For dielectrics; comprises soft iron/iron oxide core
01/15/2004DE10225154A1 Weichmagnetischer Pulververbundwerkstoff, Verfahren zu dessen Herstellung und dessen Verwendung Soft-magnetic powder composite material, method for its preparation and its use
01/14/2004CN1468439A Annealed amorphous alloys for magneto-acoustic markers
01/14/2004CN1468438A Co-mn-fe soft magnetic alloys
01/14/2004CN1468319A Rare earth alloy sintered compact and method of making the same
01/14/2004CN1467759A Permanent-magnetic ferrite sticking rubber magnet and manufacturing process thereof
01/14/2004CN1134949C Echo compensation U-shape interface pulse transformer and manufacturing method of annular banding magnetic core
01/13/2004US6677881 Radio wave absorber
01/13/2004US6677034 Aerogels, piezoelectric devices, and uses therefor
01/13/2004US6676773 Preparing alloy of rare earth element, iron and boron; coarsely pulverizing alloy magnet; finely pulverizing coarsely pulverized powder and removing larger particles; covering surface of powder particles with lubricant
01/13/2004US6676772 For magnetic refrigeration; capable of realizing magnetic refrigeration using a relatively low magnetic field in near room temperature region.
01/13/2004US6676730 Boride powder
01/13/2004US6676729 Reducing in solvent, stabilizing, precipitating, redispersing in solvent
01/13/2004US6675459 Bulk amorphous metal magnetic components for electric motors