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| Number | Title | Issue Date |
| 8388769 | Powdered-iron magnet and rotating machine using the same To mold a high-resistance magnet at low temperature, including room temperature, the magnet includes magnetic powders, metallic powders having a lower hardness than the magnetic powders and a high-resistance layer, wherein the magnetic powders occupy a larger volume... | 03/05/2013 |
| 8110049 | Alloy containing rare earth element, production method thereof, magnetostrictive device, and magnetic refrigerant material An RE-containing alloy, which is represented by a compositional formula of RrTtAa (wherein R represents at least one rare earth element selected from among La, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Tm, Yb, Gd, and Lu; T collectively repres... | 02/07/2012 |
| 7998283 | Rare earth anisotropic hard magnetic material and processes for producing magnetic powder and magnet using the same The disclosure provides a rare earth anisotropic hard magnetic material, which has, on atomic percent basis, a composition of (Sm1-αRα)xFe100-x-y-zMyIz, wherein, R is Pr alone or a combination of Pr... | 08/16/2011 |
| 7914628 | Magnetic refrigeration material and method of manufacturing thereof A magnetic material comprising a NaZn13 type crystal structure with uniform and fine microstructure exhibiting excellent characteristics as a magnetic refrigeration material, and a method of manufacturing the magnetic refrigeration material are provided. ... | 03/29/2011 |
| 7833361 | Alloy and method for producing magnetic refrigeration material particles using same An alloy is used for production of magnetic refrigeration material particles. The alloy contains La in a range of 4 to 15 atomic %, Fe in a range of 60 to 93 atomic %, Si in a range of 3.5 to 23.5 atomic % and at lease one element M selected from B and Ti in a range... | 11/16/2010 |
| 7815752 | Magnetic alloy and method for producing same Disclosed is a novel process for producing an NaZn13 magnetic alloy which enables to obtain a magnetic alloy having higher characteristics than ever before. Specifically disclosed is a magnetic alloy represented by the following composition formula: (La | 10/19/2010 |
| 7722726 | Process for producing alloy slab for rare-earth sintered magnet, alloy slab for rare-earth sintered magnet and rare-earth sintered magnet The invention provides a method for producing alloy flakes for rare earth sintered magnets, which makes uniform the intervals, size, orientation, and shape of the R-rich region and the dendrites of the 2-14-1 phase, which inhibits formation of chill, and which produ... | 05/25/2010 |
| 7695574 | Alloy containing rare earth element, production method thereof, magnetostrictive device, and magnetic refrigerant material A method for producing an RE-containing alloy represented by formula R(T1−xAx)13−y (wherein R represents Ce, etc.; T represents Fe, etc.; and A represents Al, etc; 0.05≦x≦0.2; and −1≦y≦1) including a melting step of mel... | 04/13/2010 |
| 7670443 | Magnetic alloy material and method of making the magnetic alloy material A method of making a magnetic alloy material includes the steps of: preparing a melt of an alloy material having a predetermined composition; rapidly cooling and solidifying the melt to obtain a rapidly solidified alloy represented by: Fe100-a-b-cREa... | 03/02/2010 |
| 7622010 | Method and apparatus for producing granulated powder of rare earth alloy and method for producing rare earth alloy sintered compact A method of making a rare-earth alloy granulated powder according to the present invention includes the steps of: preparing a rare-earth alloy powder; generating remanent magnetization in the powder; and granulating the powder by utilizing agglomeration force produc... | 11/24/2009 |
| 7481895 | Isotropic powdery magnet material, process for preparing and resin-bonded magnet Disclosed is an isotropic SmFeN powdery magnet material for producing resin-bonded magnets. The magnet powder is prepared by melt-spinning of a molten alloy and nitriding the alloy powder thus obtained to form a magnet alloy having an alloy composition of one of the... | 01/27/2009 |
| 7470334 | Method for preparing sintered product, sintered product and magnetostriction material A method for manufacturing a sintered compact includes the steps of preparing an alloy powder having a composition represented by Expression 1: RTW (where, R is at least one kind of rare earth metal, T is at least one kind of transition metal, and w defin... | 12/30/2008 |
| 7465363 | Hard magnetic composition, permanent magnet powder, method for permanent magnet powder, and bonded magnet A single phase consisting of a ThMn12 phase can be obtained by having the composition thereof represented by a general formula R(Fe100-y-wCowTiy)xSizAv (in the general formula, R is at leas... | 12/16/2008 |
| 7438768 | Rare earth element sintered magnet and method for producing rare earth element sintered magnet Hydrogen embrittlement is prevented in Sm2Co17-based magnets and R2Fe14B-based magnets by metal plating the magnet, then carrying out heat treatment, or by forming a metal oxide or metal nitride layer on the metal plating ... | 10/21/2008 |
| RE40524 | Magnet powder-resin compound particles, method for producing such compound particles and resin-bonded rare earth magnets formed therefrom The magnet powder-resin compound particles substantially composed of rare earth magnet powder and a binder resin are in such a round shape that a ratio of the longitudinal size a to the transverse size b (a/b) is more than 1.00 and 3 or less, and that an average par... | 09/30/2008 |
| 7410705 | Rare earth-transition metal alloy articles A phosphate bonded ceramic is used to provide a protective coating on a rare earth-transition metal (RE-TM) alloy substrate, conferring degradation resistance to the alloy by being oxidation resistant and acting as a diffusion barrier, thereby minimising/preventing ... | 08/12/2008 |
| 7396419 | Method for preparing sintered product, sintered product and magnetostriction material A method for manufacturing a sintered compact includes the steps of preparing an alloy powder having a composition represented by Expression 1: RTW (where, R is at least one kind of rare earth metal, T is at least one kind of transition metal, and w defin... | 07/08/2008 |
| RE40348 | Arc segment magnet, ring magnet and method for producing such magnets A thin arc segment magnet made of a an R-T-B based, rare earth sintered magnet substantially comprising 28-33 weight % of R and 0.8-1.5 weight % of B, the balance being substantially Fe T, wherein R is at least one rare earth element including Y, and... | 06/03/2008 |
| 7370404 | Method for resetting pinned layer magnetization in a magnetoresistive sensor A spin valve sensor in a read head has a spacer layer which is located between a self-pinned AP pinned layer structure and a free layer structure. The free layer structure is longitudinally stabilized by first and second hard bias layers which abut first and second ... | 05/13/2008 |
| 7371292 | Nd-Fe-B type anisotropic exchange spring magnet and method of producing the same A Nd—Fe—B type anisotropic exchange spring magnet is produced by a method of obtaining powder of a Nd—Fe—B type rare earth magnet alloy which comprises hard magnetic phases and soft magnetic phases wherein a minimum width of the soft magnetic phases is small... | 05/13/2008 |
| 7364628 | Solid material for magnet A solid material for a magnet, comprising a rare-earth/iron/nitrogen/hydrogen system magnetic material. ... | 04/29/2008 |
| 7361586 | Preamorphization to minimize void formation Methods are described for eliminating void formation during the fabrication of and/or operation of memory cells/devices. According to one aspect of the present disclosure, the methods to eliminate voids include formation of an opening on a semiconductor structure, f... | 04/22/2008 |
| 7338566 | Alloy for sm-co based magnet, method for production thereof, sintered magnet and bonded magnet The present invention relates to a Sm—Co based magnet alloy useful as a raw material for producing magnets having high magnetic properties, such as sintered or bonded magnets, methods for producing such an alloy, and sintered or bonded magnets having excellent cor... | 03/04/2008 |
| 7335317 | Method of preparing polymer composite using unidirectionally solidified giant magnetostrictive material The present invention relates to methods of preparing a polymer composite using a giant magnetostrictive material, and more particularly, to polymers composite having various improved properties, in which the advantageous structure of the giant magnetostrictive mate... | 02/26/2008 |
| 7318318 | Superconducting magnet system with refrigerator A cryostat (1) with a first helium tank (4) which contains helium at an operating temperature T1 | 01/15/2008 |
| 7316752 | R-T-B-C based rare-earth magnetic powder and bonded magnet The step of preparing a rapidly solidified alloy by rapidly quenching a melt of an R-T-B-C based rare-earth alloy (where R is at least one of the rare-earth elements including Y, T is a transition metal including iron as its main ingredient, B is boron, and C is car... | 01/08/2008 |
| 7309396 | Giant magnetostrictive material and heat treatment method for giant magnetostrictive material Restoring magnetostriction characteristics without causing fusion of rod. By performing heat treatment on a giant magnetostrictive material within the temperature range of 750 to 860° C., working distortion is removed while bleeding of an R-rich phase on a rod surf... | 12/18/2007 |
| 7297213 | Permanent magnet including multiple ferromagnetic phases and method for producing the magnet An iron-based rare earth alloy magnet has a composition represented by the general formula: (Fe1-mTm)100-x-y-zQxRyMz, where T is at least one element selected from the group consisting of Co and Ni; Q... | 11/20/2007 |
| 7294199 | Nitride single crystal and producing method thereof A method of producing a nitride single crystal includes the step of forming a material transport medium layer containing a compound of rare earth element on a surface of a nitride crystal, and the step of making a seed crystal in contact with the material transport ... | 11/13/2007 |
| 7286626 | Neutron absorbing coating for nuclear criticality control A neutron absorbing coating for use on a substrate, and which provides nuclear criticality control is described and which includes a nickel, chromium, molybdenum, and gadolinium alloy having less than about 5% boron, by weight. ... | 10/23/2007 |
| 7273405 | Sintered rare earth magnetic alloy wafer and wafer surface growing machine A method of producing a sintered rare earth magnetic alloy wafer comprises a step of using a cutter to slice a wafer of a thickness of not greater than 3 mm from a sintered rare earth magnetic alloy having ferromagnetic crystal grains surrounded by a more readily gr... | 09/25/2007 |
| 7264683 | Centrifugal casting method, centrifugal casting apparatus, and cast alloy produced by same The present invention relates to a casting method which employs rapid solidification of metal, rare-earth metal or the like, as well as to a casting apparatus and a cast alloy. A centrifugal casting method includes the steps of pouring a molten material onto a rotar... | 09/04/2007 |
| 7261781 | Nanocomposite magnet A nanocomposite magnet has a composition represented by (Fe1-mTm)100-x-y-z-nQxRyTizMn, where T is at least one of Co and Ni, Q is at least one of B and C, R is at least one rare earth eleme... | 08/28/2007 |
| 7255830 | Method of making a three-dimensional sintered product To make a three-dimensional object, an optical beam is first irradiated on a predetermined portion of a powder layer to form a sintered layer, which is then covered with a new powder layer. The optical beam is again irradiated on a predetermined portion of the new p... | 08/14/2007 |
| 7250840 | Layered product A layered product prepared by applying a surface treatment to an adherend having a surface with a low binding property with an anaerobic adhesive, which does not require a complex work, primer application, effected by accelerating an adhesive curing rate, and does n... | 07/31/2007 |
| 7244512 | Method of manufacturing electromagnetic devices using kinetic spray A method of manufacturing electric machines comprised of geometrically patterned arrays of permanent magnets, soft magnetic materials, and electrical conductors deposited by kinetic spraying methods directly atop a carrier. The magnets and planar coils of the presen... | 07/17/2007 |
| 7232495 | Method of magnetizing rare-earth magnet and rare-earth magnet The method of the present invention includes a step of preparing a rare earth magnet 22 disposed for forming a cylinder 22a, a first magnetizing step of applying a first external magnetic field H1 to the rare earth magnet 22, there... | 06/19/2007 |
| 7217328 | Compound for rare-earth bonded magnet and bonded magnet using the compound A compound for a rare-earth bonded magnet includes a rare-earth alloy powder and a binder. The rare-earth alloy powder includes at least about 2 mass % of Ti-containing nanocomposite magnet powder particles with a composition represented by (Fe1-mTm | 05/15/2007 |
| 7211157 | Rare-earth alloy, rare-earth sintered magnet, and methods of manufacturing A rare-earth alloy ingot is produced by melting an alloy composed of 20–30 wt % of a rare-earth constituent which is Sm alone or at least 50 wt % Sm in combination with at least one other rare-earth element, 10–45 wt % of Fe, 1–10 wt % of Cu and 0.5–5 wt % o... | 05/01/2007 |
| 7210526 | Solid state pump The present invention is a material and method that enables creation of an in situ pumping action within a matrix or otherwise porous media. This pumping action may be used to move materials, namely fluids, through the matrix or porous media to a gathering point. Th... | 05/01/2007 |
