序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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181 | Magnetically enhanced composite materials and methods for making and using the same | US09429931 | 1999-10-29 | US06355166B1 | 2002-03-12 | Sudath Amarasinghe; Shelley Minteer; Lois Anne Zook; Drew C. Dunwoody; Catherine Spolar; Hachull Chung; Johna Leddy |
Materials and methods for making and using magnetically enhanced composite materials are provided. Surfaces coated with such composites can be used to improve fuel cells, material separators, and other applications. A variety of devices can incorporate such composites, including fuel cells, separators, batteries, and electrodes that effect electrolysis of magnetic species. | ||||||
182 | Combinatorial synthesis of novel materials | US09127195 | 1998-07-31 | US06346290B1 | 2002-02-12 | Peter G. Schultz; Xiaodong Xiang; Isy Goldwasser |
Methods and apparatus for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to predefined regions on a substrate, and simultaneously reacting the components to form at least two materials. Materials which can be prepared using the methods and apparatus of the present invention include, for example, covalent network solids, ionic solids and molecular solids. More particularly, materials which can be prepared using the methods and apparatus of the present invention include, for example, inorganic materials, intermetallic materials, metal alloys, ceramic materials, organic materials, organometallic materials, non-biological organic polymers, composite materials (e.g., inorganic composites, organic composites, or combinations thereof), etc. Once prepared, these materials can be screened for useful properties including, for example, electrical, thermal, mechanical, morphological, optical, magnetic, chemical, or other properties. Thus, the present invention provides methods for the parallel synthesis and analysis of novel materials having useful properties. | ||||||
183 | Magnetic field sensor and method for making same | US09341694 | 1999-07-26 | US06291993B1 | 2001-09-18 | Albert Fert; Frédéric Petroff; Luiz Fernando Schelp; Alain Schuhl |
A magnetic sensor having a layer of nonmagnetic insulator including at least one layer of ferromagnetic particles. This combination of layers is sandwiched between two ferromagnetic electrodes. Electrons are transported by the tunneling effect between each electrode and the ferromagnetic particles. The tunneling resistance depends on the orientation of the magnetization of the electrodes and therefore varies in the presence of the magnetic field. The multichannel and multistage nature of the tunneling conduction eliminates the problems of short-circuiting by porosity, thus leading to less difficult fabrication and improved robustness in terms of breakdown. The possible thermal fluctuations of the magnetic moments of the aggregates can be suppressed by the choice of a magnetic material for the part of the insulating layer which contains the aggregates. | ||||||
184 | Magnetic composites and methods for improved electrolysis | US09362495 | 1999-07-30 | US06207313B1 | 2001-03-27 | Johna Leddy; Lois Anne Zook; Sudath Amarasinghe |
Magnetic composites exhibit distinct flux properties due to gradient interfaces. The composites can be used to improve fuel cells and batteries and effect transport and separation of different chemical species. Devices utilizing the composites include an electrode and improved fuel cells and batteries. Some composites, disposed on the surface of electrodes, prevent passivation of those electrodes and enable direct reformation of liquid fuels. Methods involving these composites provide distinct ways for these composites to be utilized. | ||||||
185 | Systems and methods for the combinatorial synthesis of novel materials | US841423 | 1997-04-22 | US06045671A | 2000-04-04 | Xin Di Wu; Youqi Wang; Isy Goldwasser |
Methods and apparatus for the preparation of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by depositing components of target materials to predefined regions on the substrate, and, in some embodiments, simultaneously reacting the components to form at least two resulting materials. In particular, the present invention provides novel masking systems and methods for applying components of target materials onto a substrate in a combinatorial fashion, thus creating arrays of resulting materials that differ slightly in composition, stoichiometry, and/or thickness. Using the novel masking systems of the present invention, components can be delivered to each site in a uniform distribution, or in a gradient of stoichiometries, thicknesses, compositions, etc. Resulting materials which can be prepared using the methods and apparatus of the present invention include, for example, covalent network solids, ionic solids and molecular solids. Once prepared, these resulting materials can be screened sequentially, or in parallel, for useful properties including, for example, electrical, thermal, mechanical, morphological, optical, magnetic, chemical and other properties. | ||||||
186 | Combinatorial synthesis of novel materials | US480007 | 1995-06-07 | US6004617A | 1999-12-21 | Peter G. Schultz; Xiaodong Xiang; Isy Goldwasser |
Methods and apparatus for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to predefined regions on a substrate, and simultaneously reacting the components to form at least two materials. Materials which can be prepared using the methods and apparatus of the present invention include, for example, covalent network solids, ionic solids and molecular solids. More particularly, materials which can be prepared using the methods and apparatus of the present invention include, for example, inorganic materials, intermetallic materials, metal alloys, ceramic materials, organic materials, organometallic materials, non-biological organic polymers, composite materials (e.g., inorganic composites, organic composites, or combinations thereof), etc. Once prepared, these materials can be screened for useful properties including, for example, electrical, thermal, mechanical, morphological, optical, magnetic, chemical, or other properties. Thus, the present invention provides methods for the parallel synthesis and analysis of novel materials having useful properties. | ||||||
187 | Soft magnetic alloy thin film and plane-type magnetic device | US545295 | 1995-10-19 | US5896078A | 1999-04-20 | Yasuo Hayakawa; Akihiro Makino |
A soft magnetic alloy thin film includes a fine crystalline phase and an amorphous phase. The fine crystalline phase includes an average crystalline grain size of 10 nm or less in diameter and has body-centered cubic structure mainly composed of Fe. The amorphous phase has a nitrogen (N) compound as the main composition and occupies at least 50% of the structure of the thin film. An element M is incorporated at least in the amorphous phase, and includes at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, W, and rare earth metal elements. A plane-type magnetic device is made using this thin film. | ||||||
188 | Magnetic alloy having a structured nucleation layer and method for manufacturing same | US802646 | 1997-02-18 | US5846648A | 1998-12-08 | Tu Chen; Michinobu Suekane; Makoto Imakawa; Kazuhiko Mitarai |
A magnetic recording medium is provided with a structured nucleation layer. The structured nucleation layer comprises a fine-grained seed layer and an intermediate layer. The seed layer (e.g., NiAl, Ti, Cr--Cu, etc.) serves as a template for fine grained-growth of the intermediate layer. The intermediate (e.g., Cr, etc.) layer has preferred crystal textures and an appropriate lattice match to a subsequently deposited magnetic recording layer to allow epitaxial growth of the magnetic recording layer. The intermediate layer provides morphology and orientation to the magnetic recording layer. The magnetic recording layer (e.g., Co-alloy) includes a material which segregates to the alloy grain boundaries to isolate the grains thereof. Each grain of the magnetic recording layer is predominantly a single crystal of small size and uniformly spaced from adjacent grains. The easy axis of the magnetic recording material is predominantly in the plane of the disk, with a random in-plane orientation. Superior magnetic properties are obtained. | ||||||
189 | Methods for coating surfaces with magnetic composites exhibiting distinct flux properties | US626082 | 1996-04-01 | US5786040A | 1998-07-28 | Johna Leddy; Sudath Amarasinghe |
A method for coating a surface with a magnetic composite material exhibiting distinct flux properties due to gradient interfaces within the composite. Surfaces coated with such a composite can be used to improve fuel cells and to effect improved transport and separation of different species of materials. A wide variety of devices can incorporate such composite-coated surfaces, including separators, fuel cells, electrochemical cells, and electrodes for channeling flux of, or for effecting electrolysis of, magnetic species. | ||||||
190 | Magnetoresistance effect element | US766530 | 1996-12-13 | US5738929A | 1998-04-14 | Atsushi Maeda; Satoru Oikawa; Minoru Kume |
A magnetoresistance effect element includes a non-magnetic substrate, a ferromagnetic dispersion layer or a ferromagnetic layer, and a non-magnetic metal film. The ferromagnetic dispersion layer is a layer of a ferromagnetic metal or alloy that is independently and dispersedly formed on the substrate. The alternative ferromagnetic layer is a layer of a ferromagnetic metal or alloy that is formed on the substrate with a textured surface. The non-magnetic metal film is made of at least one atomic element having a non-soluble relation with the ferromagnetic metal or alloy, and is formed on the non-magnetic substrate and the ferromagnetic dispersion layer or the ferromagnetic layer. | ||||||
191 | Magnetoresistance-effect element | US216185 | 1994-03-22 | US5656381A | 1997-08-12 | Atsushi Maeda; Minoru Kume |
A magnetoresistance-effect element includes a substrate, and a magnetoresistance-effect film disposed on the substrate. The magnetoresistance-effect film includes an alloy film containing ferromagnetic metal atoms and non-magnetic metal atoms, which have the property relative to each other that they are mutually insoluble in both solid and liquid phases. The magnetoresistance-effect film further includes at least three soft magnetic films arranged as discontinuous areas in contact with the alloy film and magnetically coupled therewith for reducing an operating magnetic field strength of the element. | ||||||
192 | Magnetoresistance film which is a matrix of at least two specified metals having included submicron particles of a specified magnetic metal or alloy | US497716 | 1995-06-30 | US5594933A | 1997-01-14 | Kazuhiko Hayashi; Hidefumi Yamamoto; Junichi Fujikata; Kunihiko Ishihara |
The invention relates to a magnetoresistance material, i.e. a conductive material that exhibits magnetoresistance, which is an inhomogeneous system consisting of a nonmagnetic matrix and ultrafine particles of a ferromagnetic material such as Co or Ni--Fe--Co dispersed in the nonmagnetic matrix. With the aim of reducing deterioration of the magnetoresistance effect, an alloy or mixture of at least two metal elements selected from Cu, Ag, Au and Pt is used as the material of the nonmagnetic matrix. Optionally, the nonmagnetic matrix may contain a limited quantity of a supplementary element selected from Al, Cr, In, Mn, Mo, Nb, Pd, Ta, Ti, W, V, Zr and Ir. A film of the magnetoresistance material can be formed on a substrate, and it is optional to interpose a buffer layer between the film and the substrate and/or cover the film with a protective layer. | ||||||
193 | Magnetorsistance effect element | US326731 | 1994-10-20 | US5585198A | 1996-12-17 | Atsushi Maeda; Satoru Oikawa; Minoru Kume |
A magnetoresistance effect element includes a non-magnetic substrate, a ferromagnetic dispersion layer or a ferromagnetic layer, and a non-magnetic metal film. The ferromagnetic dispersion layer is a layer of a ferromagnetic metal or alloy that is independently and dispersedly formed on the substrate. The alternative ferromagnetic layer is a layer of a ferromagnetic metal or alloy that is formed on the substrate with a textured surface. The non-magnetic metal film is made of at least one atomic element having a non-soluble relation with the ferromagnetic metal or alloy, and is formed on the non-magnetic substrate and the ferromagnetic dispersion layer or the ferromagnetic layer. | ||||||
194 | Phase-separated material (U) | US711019 | 1985-01-16 | US5574961A | 1996-11-12 | Alan S. Edelstein; Stuart A. Wolf; Kenneth E. Kihlstrom |
A material for disposition on a surface comprising Fe, Co, or FeCo in the form of small single magnetic domain metallic clusters disposed in an insulating matrix of BN. The material may be utilized as a new absorbing material for radar microwave signals. Additionally, the material may be utilized on a magnetic storage substrate to form a new magnetic recording medium. | ||||||
195 | MAGNETIC NANOCLUSTERS | EP11786965 | 2011-05-27 | EP2577686A4 | 2017-12-06 | KENNEDY JOHN VEDAMUTHU; MARKWITZ ANDREAS |
A method for preparing magnetic materials is disclosed. The magnetic materials are prepared by implanting low energy magnetic ions into a substrate and annealing with a charged particle beam. Magnetic materials comprising magnetic nanoclusters in the near-surface region of a substrate are also disclosed. The magnetic materials are useful in, for example, magneto-electronic devices such as magnetic sensors. | ||||||
196 | AGGREGATE OF MAGNETIC ALLOY PARTICLES | EP04771322.7 | 2004-07-30 | EP1661646B1 | 2013-03-27 | SATO, Kimitaka, Dowa Mining Co., Ltd. |
197 | PERPENDICULAR MAGNETIC RECORDING DISK AND PROCESS FOR PRODUCING THE SAME | EP05765413.9 | 2005-06-29 | EP1788558B1 | 2013-02-20 | SONOBE, Yoshiaki, c/o HOYA CORPORATION; UMEZAWA, Teiichiro, c/o HOYA CORPORATION; TAKASU, Chikara, c/o HOYA CORPORATION |
198 | ELECTROMAGNETIC WAVE ABSORBENT MATERIAL | EP09762515.6 | 2009-06-10 | EP2306799A1 | 2011-04-06 | OSADA Minoru; SASAKI Takayoshi |
Provided is an electromagnetic wave absorbent material comprising a magnetic film as the main constituent thereof. The magnetic film comprises a titania nanosheet where a 3d magnetic metal element is substituted at the titanium lattice position. The electromagnetic wave absorbent material stably and continuously exhibits electromagnetic wave absorption performance in a range of from 1 to 15 GHz band and is useful as mobile telephones, wireless LANs and other mobile electronic instruments. The absorbent material can be fused with a transparent medium and is applicable to transparent electronic devices such as large-sized liquid crystal TVs, electronic papers, etc. |
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199 | AGGREGATE OF MAGNETIC ALLOY PARTICLE | EP04771322 | 2004-07-30 | EP1661646A4 | 2010-09-29 | SATO KIMITAKA |
200 | A MAGNETORESISTIVE MEDIUM | EP04720130.6 | 2004-03-12 | EP1730751B1 | 2009-10-21 | SHVETS, Igor; ARORA, Sunil, Kumar; PILLAI, Sumesh, Sofin, Ramakrishna, Pillai, Gopala |
A magnetoresistive medium (1) comprises a substrate (2) which has been treated to provide a miscut vicinal surface (3) in the form of terraces (4) and steps (5) of atomic scale. There are discrete separated spacer nanowires (7) provided by an intermediate partial film on each terrace (4) against each step (5). A further film (11) provides upper nanowires (10(a), 10(b)). A thin protective layer (15) covers the upper nanowires (10(a), 10(b)) which form two separate subsets of nanowires with different exchange interaction with the substrate and thus a different response to an external magnetic field. In use, an external magnetic field (H) applied the response of the nanowires (10(a), 10(b)) changes as the exchange coupling with the substrate varies and the magnetisation on the areas change, for example, as shown by the arrows while prior to the application of the external magnetic field, they might, for example, be aligned. Many different constructions of magnetoresistive media are described. |