Nickel Base Patents (Class 148/312)
  • Patent number: 11830711
    Abstract: A Co sputtering target having a purity of 99.99% to 99.999% and a Si content of 1 wtppm or less. Provided is a Co sputtering target capable of improving barrier properties and adhesiveness by suppressing conversion into highly reactive silicide by a reduction in the Si content in cobalt.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: November 28, 2023
    Assignee: JX Metals Corporation
    Inventors: Kunihiro Oda, Takayuki Asano
  • Patent number: 10662316
    Abstract: A magneto-rheological elastomer composition (10) includes a matrix resin (12) and a magnetic powder (11). The magnetic powder (11) is contained in an amount of 30 to 70% by volume based on 100% by volume of the composition. The magneto-rheological elastomer composition (10) has an Asker C hardness of 5 to 60 as determined by the Standard SRIS0101 of the Society of Rubber Science and Technology, Japan. The average particle size of the magnetic powder is preferably 2 to 500 ?m, and the matrix resin is preferably an organopolysiloxane. The storage modulus of the magneto-rheological elastomer composition preferably changes by five times or more upon application of a magnetic force with a magnetic flux density of 200 mT. Thus, the present invention provides a magneto-rheological elastomer composition that greatly changes its storage modulus upon application of magnetism, a method for producing the same, and a vibration absorbing device including the same.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: May 26, 2020
    Assignee: Fuji Polymer Industries Co., Ltd.
    Inventors: Shingo Kobayashi, Mai Sugie, Masakazu Hattori, Toshihiko Komatsuzaki
  • Patent number: 10344391
    Abstract: An Fe—Ni—P-RE multicomponent alloy plating layer, electrodeposition preparation method, and plating application. The alloy plating layer obtained via electrodeposition contains elements Fe, Ni, P and RE, with the following mass percentages Fe— 16%-65%, Ni— 25%-70%, combined Fe and Ni— 63%-91%, RE 1.6%-25%, and the balance being P. The plating solution mainly contains the following components: ferrous salt, nickel salt, NaH2PO2, RECl3, H3BO3 and Na3C6H5O7. A multicomponent alloy plating layer of different components can be obtained by adjusting the main salt and complexing agent in the plating solution and by adjusting the process Enabled is controllable adjustment to the components of the obtained plating layer while saving costs, improved characteristics such as the thermal expansion coefficient, electrical property, magnetic property, etc., and products and methods very suitable for applications in the field of micro-electronics.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: July 9, 2019
    Assignee: INSTITUTE OF METAL RESEARCH, CHINESE ACADEMY OF SCIENCES
    Inventors: Zhiquan Liu, Di Wu, Liyin Gao, Jingdong Guo
  • Patent number: 10043608
    Abstract: A laminated coil component includes an element assembly formed by laminating a plurality of insulation layers and a coil unit formed inside the element assembly by a plurality of coil conductors. The element assembly includes a coil unit arrangement layer which has the coil unit arranged therein, and at least a pair of shape retention layers which is provided to have the coil unit arrangement layer interposed therebetween to retain a shape of the coil unit arrangement layer. The shape retention layer is made from glass-ceramic containing SrO, and a softening point of the coil unit arrangement layer is lower than a softening point or a melting point of the shape retention layer.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: August 7, 2018
    Assignee: TDK CORPORATION
    Inventors: Takahiro Sato, Yuya Ishima, Shusaku Umemoto, Takashi Suzuki, Satoru Okamoto, Yoshikazu Sakaguchi
  • Patent number: 9549780
    Abstract: A steerable laser probe may include a handle having a handle distal end and a handle proximal end, an actuation lever of the handle, a flexible housing tube having a flexible housing tube distal end and a flexible housing tube proximal end, and an optic fiber disposed within an inner bore of the handle and the flexible housing tube. An actuation of the actuation lever may gradually curve the flexible housing tube and the optic fiber. An actuation of the actuation lever may gradually straighten the flexible housing tube and the optic fiber.
    Type: Grant
    Filed: April 14, 2013
    Date of Patent: January 24, 2017
    Assignee: Katalyst Surgical, LLC
    Inventors: Gregg D Scheller, Matthew N Zeid
  • Patent number: 9476124
    Abstract: A method for selectively depositing a ferromagnetic layer on a conducting layer, includes providing a substrate including a conducting layer; preparing a solution including a metal salt; adding a complexing agent to the solution; adding a reducing agent to the solution; while a temperature of the solution is less than 75° C., immersing the substrate in the solution for a predetermined period to deposit a ferromagnetic layer on the conducting layer by electroless deposition, wherein the ferromagnetic layer comprises one of cobalt (Co), iron (Fe) or CoFe; and after the predetermined period, removing the substrate from the solution.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: October 25, 2016
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Aniruddha Joi, Ernest Chen, Yezdi Dordi
  • Patent number: 8298352
    Abstract: A magnet core (1) made of a composite of platelet-shaped particles of a thickness D and a binder has a particularly linear relative permeability curve over a pre-magnetised constant field. For this purpose, the platelet-shaped particles (5) are provided with an amorphous volume matrix (8), wherein areas (9) with a crystalline structure having a thickness d of 0.04*D?d?0.25*D and covering a proportion x of x?0.1 of the surface (6, 7) of the particle (5) are embedded on the surface (6, 7) of the particle (5).
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: October 30, 2012
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventor: Markus Brunner
  • Patent number: 8216393
    Abstract: A powder composite core is to be particularly dense and strong while being produced from soft magnetic alloys. In particular, the expansion of the heat-treated core is to be avoided. To produce this core, a strip of a soft magnetic alloy is first comminuted to form particles. The particles are mixed with a first binder having a curing temperature T1,cure and a decomposition temperature T1,decompose and a second binder having a curing temperature T2,cure and a decomposition temperature T2,decompose, wherein T1,cure<T2,cure?T1,decompose<T2,decompose. The mix is pressed to produce a magnet core while the first binder is cured. The magnet core is then subjected to a heat treatment accompanied by the curing of the second binder at a heat treatment temperature TAnneal>T2,cure.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: July 10, 2012
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Markus Brunner, Georg Werner Reppel
  • Patent number: 8157929
    Abstract: Disclosed are: a magnetic shielding material having excellent magnetic shielding property at a low magnetic field; and a magnetic shielding component and a magnetic shielding room each using the magnetic shielding material. Specifically disclosed is a magnetic shielding material comprising the following components (by mass): Ni: 70.0-85.0%, Cu: 0.6% or less, Mo: 10.0% or less and Mn: 2.0% or less, with the remainder being substantially Fe. The magnetic shielding material has a relative magnetic permeability of 40,000 or more under a magnetic field of 0.05 A/m and a squareness ratio (Br/B0.8) of 0.85 or less, wherein the squareness ratio (Br/B0.8) is a ratio of a remanent magnetic flux density (Br) to a maximum magnetic flux density (B0.8) in a DC hysteresis curve produced under the maximum magnetic field of 0.8 A/m.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: April 17, 2012
    Assignee: Hitachi Metals, Ltd.
    Inventors: Shin-ichiro Yokoyama, Yasuyuki Ilda, Hakaru Sasaki, Yoji Ishikura, Hiromitsu Itabashi, Masahiro Mita, Yoshiyuki Fujihara
  • Patent number: 8038808
    Abstract: A flat soft magnetic material to be used for a noise-suppressing magnetic sheet, wherein the 50% particle size D50 (?m), coercive force Hc (A/m) and bulk density BD (Mg/m3) of the flat soft magnetic material satisfy the following formula (1). D50/(HC×BD)?1.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: October 18, 2011
    Assignee: TDK Corporation
    Inventors: Atsuhito Matsukawa, Katsuhiko Wakayama, Hideharu Moru, Naoyoshi Sato, Yoshihito Hirai, Toshihisa Murayoshi
  • Patent number: 8016952
    Abstract: A ferromagnetic shape memory alloy comprising 25-50 atomic % of Mn, 5-18 atomic % in total of at least one metal selected from the group consisting of In, Sn and Sb, and 0.1-15 atomic % of Co and/or Fe, the balance being Ni and inevitable impurities, which has excellent shape memory characteristics in a practical temperature range, thereby recovering its shape by a magnetic change caused by a magnetic-field-induced reverse transformation in a practical temperature range.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: September 13, 2011
    Assignee: Japan Science and Technology Agency
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Ryosuke Kainuma, Takeshi Kanomata, Yuji Sutou
  • Patent number: 7837807
    Abstract: A magnetic core for a current transformer, and a current transformer and a watt hour meter used thereof, which is preferred the detection of a alternate current with a large asymmetrical waveform and a alternate current which a direct current is superimposed are realized. A magnetic core for a current transformer comprising the composition represented by the general formula: Fe100-x-a-y-cMxCuaM?yX?c (atomic %), wherein M is at least one element selected from Co and Ni, M? is at least one element selected from V, Ti, Zr, Nb, Mo, Hf, Ta, X? is at least one element selected from Si and B, and x, a, y, and c meets the composition of 3?x?50, 0.1?a?3, 1?y?10, 2?c?30, and also 7?y+c?30, and an alloy comprising a crystal grain consisting of at least a part or all of the composition with a mean particle size of less than or equal to 50 nm.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: November 23, 2010
    Assignee: Hitachi Metals, Ltd.
    Inventor: Yoshihito Yoshizawa
  • Patent number: 7744702
    Abstract: A soft magnetic alloy powder containing Fe—Ni-based crystal particles is provided as one capable of adequately reducing core loss of a powder magnetic core and achieving satisfactory magnetic characteristics at an effective operating temperature of an element. The present invention provides a soft magnetic alloy powder containing Fe—Ni-based crystal particles containing 45 to 55 mass % Fe and 45 to 55 mass % Ni, relative to a total mass of Fe and Ni, and containing 1 to 12 mass % Co and 1.2 to 6.5 mass % Si, relative to a total mass of Fe, Ni, Co, and Si.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: June 29, 2010
    Assignee: TDK Corporation
    Inventors: Hiroshi Tomita, Hideharu Moro, Kesaharu Takatoh, Koyu Enda
  • Publication number: 20100156579
    Abstract: A ferromagnetic shape memory alloy comprising 25-50 atomic % of Mn, 5-18 atomic % in total of at least one metal selected from the group consisting of In, Sn and Sb, and 0.1-15 atomic % of Co and/or Fe, the balance being Ni and inevitable impurities, which has excellent shape memory characteristics in a practical temperature range, thereby recovering its shape by a magnetic change caused by a magnetic-field-induced reverse transformation in a practical temperature range.
    Type: Application
    Filed: June 27, 2006
    Publication date: June 24, 2010
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Ryosuke Kainuma, Takeshi Kanomata, Yuji Sutou
  • Patent number: 7727303
    Abstract: Provided are non-magnetic nickel powders and a method for preparing the same. The nickel powders are non-magnetic and have a HCP crystal structure. An exemplary method includes (a) dispersing nickel powders with a FCC crystal structure in an organic solvent to prepare a starting material dispersion, and (b) heating the starting material dispersion to transform the nickel powders with the FCC crystal structure to the nickel powders with the HCP crystal structure. The nickel powders do not exhibit magnetic agglomeration or aggregation phenomenon. Therefore, exemplary pastes for inner electrode formation in various electronic devices, which contain the nickel powders of the present disclosure, can be provided in a relatively uniform, well-dispersed state because of the reduced aggregation and agglomeration of the nickel powder. Also, inner electrodes made of the nickel powders can have a low impedance value even at high frequency band.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: June 1, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soon-ho Kim, Jae-young Choi, Tae-wan Kim, Eun-bum Cho, Young-kyun Lee
  • Patent number: 7622012
    Abstract: A flat soft magnetic metal powder is provided that includes: Ni in the range of 60 to 90 mass %, one or more kinds of Nb, V, and Ta in the range of 0.05 to 20 mass % in total (0.05 to 19.95 mass % when Mo is added thereto), Mo in the range of 0.05 to 10 mass % if necessary, one or two kinds of Al and Mn in the range of 0.01 to 1 mass % in total if necessary, and the balance including Fe; an average grain size of 30 to 150 ?m and an aspect ratio (average grain size/average thickness) of 5 to 500; and a flat face. Here, with a peak intensity of a face index (220) in an X-ray diffraction pattern I220 and a peak intensity of a face index (111) I111, a peak intensity ratio I220/I111 is in the range of 0.1 to 10.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: November 24, 2009
    Assignee: Mitsubishi Materials Corporation
    Inventors: Gakuji Uozumi, Ryoji Nakayama, Yasushi Nayuki
  • Patent number: 7601229
    Abstract: A method for making soft magnetic material includes: a first heat treatment step applying a temperature of at least 400 deg C. and less than 900 deg C. to metal magnetic particles; a step for forming a plurality of compound magnetic particles in which said metal magnetic particles are surrounded by insulation film; and a step for forming a shaped body by compacting a plurality of compound magnetic particles. This provides a method for making soft magnetic material that provides desired magnetic properties.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: October 13, 2009
    Assignee: Sumitomo Electric Industries Ltd.
    Inventors: Haruhisa Toyoda, Hirokazu Kugai, Kazuhiro Hirose, Naoto Igarashi, Takao Nishioka
  • Patent number: 7575645
    Abstract: The invention provides an Fe—Ni—Mo soft magnetic flaky powder having a component composition of, in percent by mass, Ni: 60 to 90%, Mo: 0.05 to 1.95%, and the balance of Fe and unavoidable impurities, and a flat surface of an average particle size of 30 to 150 ?m, and an aspect ratio (average particle size /average thickness) of 5 to 500; and having a peak intensity ratio I200/I111 within a range between 0.43 and 10, where I200 is the peak height of the face index (200) and I111 is the peak height of the face index (111), in an X-ray diffraction pattern measured in such a manner that the plane including the X-ray incident direction and the diffraction direction is perpendicular to the flat surface of the soft magnetic flaky powder, and the angle between the incident direction and the flat surface is equal to the angle between the diffraction direction and the flat surface.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: August 18, 2009
    Assignees: Mitsubishi Materials Corporation, JEMCO Inc.
    Inventors: Kazunori Igarashi, Gakuji Uozumi, Yasushi Nayuki, Ryoji Nakayama
  • Patent number: 7497914
    Abstract: The invention provides an Fe—Ni—Mo soft magnetic flaky powder having a component composition of, in percent by mass, Ni: 60 to 90%, Mo: 0.05 to 1.95%, and the balance of Fe and unavoidable impurities, and a flat surface of an average particle size of 30 to 150 ?m, and an aspect ratio (average particle size /average thickness) of 5 to 500; and having a peak intensity ratio I200/I111 within a range between 0.43 and 10, where I200 is the peak height of the face index (200) and I111 is the peak height of the face index (111), in an X-ray diffraction pattern measured in such a manner that the plane including the X-ray incident direction and the diffraction direction is perpendicular to the flat surface of the soft magnetic flaky powder, and the angle between the incident direction and the flat surface is equal to the angle between the diffraction direction and the flat surface.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: March 3, 2009
    Assignees: Mitsubishi Materials Corporation, Jemco Inc.
    Inventors: Kazunori Igarashi, Gakuji Uozumi, Yasushi Nayuki, Ryoji Nakayama
  • Publication number: 20090025830
    Abstract: A flat soft magnetic metal powder is provided that includes: Ni in the range of 60 to 90 mass %, one or more kinds of Nb, V, and Ta in the range of 0.05 to 20 mass % in total (0.05 to 19.95 mass % when Mo is added thereto), Mo in the range of 0.05 to 10 mass % if necessary, one or two kinds of Al and Mn in the range of 0.01 to 1 mass % in total if necessary, and the balance including Fe; an average grain size of 30 to 150 ?m and an aspect ratio (average grain size/average thickness) of 5 to 500; and a flat face. Here, with a peak intensity of a face index (220) in an X-ray diffraction pattern I220 and a peak intensity of a face index (111) I111, a peak intensity ratio I220/I111 is in the range of 0.1 to 10.
    Type: Application
    Filed: February 9, 2006
    Publication date: January 29, 2009
    Applicant: Mitsubishi Materials Corporation
    Inventors: Gakuji Uozumi, Ryoji Nakayama, Yasushi Nayuki
  • Patent number: 7473325
    Abstract: A current transformer core made of an alloy having a composition represented by the general formula: Fe100-x-a-y-cMxCuaM?yX?c (by atomic %), wherein M is Co and/or Ni, M? is at least one element selected from the group consisting of V, Ti, Zr, Nb, Mo, Hf, Ta and W, X? is Si and/or B, and x, a, y and c are numbers satisfying 10?x?50, 0.1?a?3, 1?y?10, 2?c?30, and 7?y+c?31, respectively; at least part or all of the alloy structure being composed of crystal grains having an average particle size of 50 nm or less.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: January 6, 2009
    Assignee: Hitachi Metals, Ltd.
    Inventors: Yoshihito Yoshizawa, Masamu Naoe
  • Patent number: 7419634
    Abstract: A Fe—Ni based permalloy comprises Ni: 30-85 wt %, C: not more than 0.015 wt %, Si: not more than 1.0 wt %, Mn: not more than 1.0 wt %, P: not more than 0.01 wt %, S: not more than 0.005 wt %, O: not more than 0.0060 wt %, Al: not more than 0.02 wt % and, if necessary, not more than 15 wt % of at least one selected from the group consisting of Mo, Cu, Co and Nb within a range of not more than 20 wt % in total.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: September 2, 2008
    Assignee: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Tatsuya Itoh, Tsutomu Omori
  • Patent number: 7297214
    Abstract: Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal element component, wherein a (Ti,Zr) based compound including one or more of S, Se and Te is formed in a matrix metal phase. The free cutting alloy is more excellent in machinability, preserving various characteristics as alloy at similar levels to a conventional case. The effect is especially conspicuous, for example, when a compound expressed in a chemical form of (Ti,Zr)4C2(S,Se,Te)2 as the (Ti,Zr) based compound is formed at least in a dispersed state in the alloy structure.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: November 20, 2007
    Assignees: Daido Tokushuko Kabushiki Kaisha, Tohoku Tokushuko Kabushiki Kaisha, Japan Industrial Technology Association, Tohoku Technoarch Co., Ltd.
    Inventors: Kiyohito Ishida, Katsunari Oikawa, Takashi Ebata, Takayuki Inoguchi, Tetsuya Shimizu, Michio Okabe
  • Patent number: 7226515
    Abstract: A Fe—Ni based permalloy comprises Ni: 30–85 wt %, C: not more than 0.015 wt %, Si: not more than 1.0 wt %, Mn: not more than 1.0 wt %, P: not more than 0.01 wt %, S: not more than 0.005 wt %, O: not more than 0.0060 wt %, Al: not more than 0.02 wt % and, if necessary, not more than 15 wt % of at least one selected from the group consisting of Mo, Cu, Co and Nb within a range of not more than 20 wt % in total.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: June 5, 2007
    Assignee: Hippon Yakin Kogyo Co., Ltd.
    Inventors: Tatsuya Itoh, Tsutomu Omori
  • Patent number: 7192491
    Abstract: In order to dampen magnetization changes in magnetic devices, such as magnetic tunnel junctions (MTJ) used in high speed Magnetic Random Access Memory (MRAM), a transition metal selected from the 4d transition metals and 5d transition metals is alloyed into the magnetic layer to be dampened. In a preferred form, a magnetic permalloy layer is alloyed with osmium (Os) in an atomic concentration of between 4% and 15% of the alloy.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: March 20, 2007
    Assignee: International Business Machines Corporation
    Inventors: Snorri T. Ingvarsson, Roger H. Koch, Stuart S. Parkin, Gang Xiao
  • Patent number: 7192662
    Abstract: A plated magnetic thin film of high saturation magnetization and low coercivity having the general form Co100-a-bFeaMb, where M can be Mo, Cr, W, Ni or Rh, which is suitable for use in magnetic recording heads that write on narrow trackwidth, high coercivity media. The plating method that produces the alloy includes four current application processes: direct current, pulsed current, pulse reversed current and conditioned pulse reversed current.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: March 20, 2007
    Assignee: Headway Technologies, Inc.
    Inventors: Chaopeng Chen, Kevin Lin, Jei Wei Chang
  • Patent number: 7048809
    Abstract: Magnetic powder having a large coercivity, Hc, is consolidated with a non-magnetic binder to form a magnetic implement having desired dimension and shape. The magnetic implement exhibits a linear B-H loop and low magnetic loss. It is capable of operating under a wide magnetic field range, and finds use current and pulse transformers, inductors carrying large electrical current, stable bandpass filters, and the like.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: May 23, 2006
    Assignee: Metglas, Inc.
    Inventors: Ryusuke Hasegawa, Vincent H. Hammond, James M. O'Reilly
  • Patent number: 7041204
    Abstract: A PVD component forming method includes inducing a sufficient amount of stress in the component to increase magnetic pass through flux exhibited by the component compared to pass through flux exhibited prior to inducing the stress. The method may further include orienting a majority crystallographic structure of the component at (200) prior to inducing the stress, wherein the induced stress alone is not sufficient to substantially alter surface grain appearance. Orienting structure may include first cold working a component blank to at least about an 80% reduction in cross-sectional area. The cold worked component blank can be heat treated at least at about a minimum recrystallization temperature of the component blank. Inducing stress may include second cold work to a reduction in cross-sectional area between about 5% to about 15% of the heat treated component. At least one of the first and second cold working can be unidirectional.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: May 9, 2006
    Assignee: Honeywell International Inc.
    Inventor: Matthew S. Cooper
  • Patent number: 6942741
    Abstract: An iron alloy strip having a gage of 0.1 to 5 mm and a magnetic field strength variation within the strip of 0 to 10 Hz, made of an iron alloy consisting essentially of, in % by weight, 0.0001-0.02% of C, 0.0001-5% of Si, 0.001-0.2% of Mn, 0.0001-0.05% of P, 0.0001-0.05% of S, 0.0001-5% of Al, 0.001-0.1% of O, 0.0001-0.03% of N, 0-10% of Co, 0-10% of Cr, 0.01-5% in total of Ti, Zr, Nb, Mo, V, Ni, W, Ta and/or B, and the balance of Fe, and having a saturation magnetic flux density of 1.7-2.3 Tesla, a maximum relative permeability of 1,200-22,000 and a coercive force of 20-380 A/m is suited for use as yokes in voice coil motor magnetic circuits. The iron alloy strip is highly resistant to corrosion and eliminates a need for a corrosion resistant coating.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: September 13, 2005
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masanobu Shimao, Masaaki Nishino, Takehisa Minowa
  • Patent number: 6846397
    Abstract: A PVD component forming method includes inducing a sufficient amount of stress in the component to increase magnetic pass through flux exhibited by the component compared to pass through flux exhibited prior to inducing the stress. The method may further include orienting a majority crystallographic structure of the component at (200) prior to inducing the stress, wherein the induced stress alone is not sufficient to substantially alter surface grain appearance. Orienting structure may include first cold working a component blank to at least about an 80% reduction in cross-sectional area. The cold worked component blank can be heat treated at least at about a minimum recrystallization temperature of the component blank. Inducing stress may include second cold work to a reduction in cross-sectional area between about 5% to about 15% of the heat treated component. At least one of the first and second cold working can be unidirectional.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: January 25, 2005
    Assignee: Honeywell International Inc.
    Inventor: Matthew S. Cooper
  • Patent number: 6780295
    Abstract: A method for making a nickel/silicon sputter target, targets made thereby and sputtering processes using such targets. The method includes the step of blending molten nickel with sufficient molten silicon so that the blend may be cast to form an alloy containing no less than 4.5 wt % silicon. Preferably, the cast ingot is then shaped by rolling it to form a plate having a desired thickness. Sputter targets so formed are capable of use in a conventional magnetron sputter process; that is, one can be positioned near a cathode in the presence of an electric potential difference and a magnetic field so as to induce sputtering of nickel ion from the sputter target onto the substrate.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: August 24, 2004
    Assignee: Tosoh SMD, Inc.
    Inventor: Eugene Y. Ivanvov
  • Patent number: 6676772
    Abstract: The magnetic material for magnetic refrigeration of the present invention is characterized by exhibiting, in a certain temperature region, preferably, only in part of a temperature region from 200 K to 350 K, an inflection point at which a second order differential coefficient of a magnetization curve changes from positive to negative with respect to a magnetic field, within the range of this magnetic field formed using a permanent magnet unit. This magnetic material of the present invention can generate a low temperature by using a relatively low magnetic field, by transferring the entropy between the electron spin system and the lattice system near the temperature at which an inflection point appears on the magnetization curve. Examples of the magnetic material meeting this condition are La(Fe,Si)13, (Hf,Ta)Fe2, (Ti,Sc)Fe2, and (Nb,Mo)Fe2, each containing 50 to 60 atomic % of transition metals such as Fe.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: January 13, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akiko Saito, Tadahiko Kobayashi, Takao Sawa, Masashi Sahashi
  • Publication number: 20030205296
    Abstract: A Fe—Ni based permalloy comprises Ni: 30-85 wt %, C: not more than 0.015 wt %, Si: not more than 1.0 wt %, Mn: not more than 1.0 wt %, P: not more than 0.01 wt %, S: not more than 0.005 wt %, O: not more than 0.0060 wt %, Al: not more than 0.02 wt % and, if necessary, not more than 15 wt % of at least one selected from the group consisting of Mo, Cu, Co and Nb within a range of not more than 20 wt % in total.
    Type: Application
    Filed: April 29, 2003
    Publication date: November 6, 2003
    Applicant: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Tatsuya Itoh, Tsutomu Omori
  • Patent number: 6514358
    Abstract: Magnetic materials for use in sputtering targets are hot rolled and stretched at ambient temperature or at a temperature not exceeding 1400° F. The magnetic material can be pure Co, pure Ni, or Co based alloys.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: February 4, 2003
    Assignee: Heraeus, Inc.
    Inventors: Michael Bartholomeusz, Michael Tsai
  • Patent number: 6475261
    Abstract: In an NiMnGa alloy represented by the chemical formula of Ni2+XMn1−X Ga, a composition ratio parameter X (mol) is selected within a range of 0.10≦X≦0.30. With this composition, the finish point of the reverse transformation of the martensitic transformation can be selected to a desired temperature within the range between −20° C. and 50° C., while the Curie point is also selected to a desired temperature within the range between 60° C. and 85° C. The alloy has the shape memory effect by the martensitic transformation and the reverse transformation. Furthermore, the alloy is induced with the reverse transformation by application of an external magnetic field at the martensite phase to exhibit the shape recovery.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: November 5, 2002
    Inventors: Minoru Matsumoto, Junji Tani, Toshiyuki Takagi, Kiyoshi Yamauchi
  • Patent number: 6342108
    Abstract: A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150° C and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powder have a transverse rupture strength of about 8,000 to about 20,000 pounds/square inch before sintering. The coating includes from 2 to 4 parts of an oxide and one part of a chromate, molybdate, oxalate, phosphate, or tungstate. The coating may be substantially free of organic materials. The invention also includes a method of making the ferromagnetic powder, a method of making soft magnetic parts from the ferromagnetic powder, and soft magnetic parts made from the ferromagnetic powder.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: January 29, 2002
    Assignee: Materials Innovation, Inc.
    Inventors: David S. Lashmore, Glenn L. Beane, Lev Deresh, Zonglu Hua
  • Publication number: 20010032686
    Abstract: An Ni—Fe alloy material suitable for forming a ferromagnetic Ni—Fe alloy thin film is provided. The magnetic thin film produces a small number of particles during sputtering, and excels in corrosion resistance and magnetic properties. A method of manufacturing an Ni—Fe alloy sputtering target used to make the thin film is also provided. In addition, an Ni—Fe alloy sputtering target for forming magnetic thin films is provided. The sputtering target is characterized in that it has: an oxygen content of 50 ppm or less; an S content of 10 ppm or less; a carbon content of 50 ppm or less, and a total content of metal impurities other than the alloy components of 50 ppm or less. Such an Ni—Fe alloy target can be produced by melting and alloying high-purity materials obtained by dissolving the raw materials in hydrochloric acid, and performing ion exchange, activated-charcoal treatment, and electrolytic refining.
    Type: Application
    Filed: May 31, 2001
    Publication date: October 25, 2001
    Inventors: Yuichiro Shindo, Tsuneo Suzuki
  • Patent number: 6287398
    Abstract: A high strength nickel-base alloy consisting essentially of, by weight percent, 50 to 60 nickel, 19 to 23 chromium, 18 to 22 iron, 3 to 4.4 aluminum, 0 to 0.4 titanium, 0.05 to 0.5 carbon, 0 to 0.1 cerium, 0 to 0.3 yttrium, 0.002 to 0.4 total cerium plus yttrium, 0.0005 to 0.4 zirconium, 0 to 2 niobium, 0 to 2 manganese, 0 to 1.5 silicon, 0 to 0.1 nitrogen, 0 to 0.5 calcium and magnesium, 0 to 0.1 boron and incidental impurities. The alloy forms 1 to 5 mole percent Cr7C3 after 24 hours at a temperature between 950 and 1150° C. for high temperature strength.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: September 11, 2001
    Assignee: Inco Alloys International, Inc.
    Inventors: Gaylord Darrell Smith, Norman Farr, Brian Allen Baker
  • Patent number: 6267827
    Abstract: An Ni—Fe alloy material suitable for forming a ferromagnetic Ni—Fe alloy thin film is provided. The magnetic thin film produces a small number of particles during sputtering, and excels in corrosion resistance and magnetic properties. A method of manufacturing an Ni—Fe alloy sputtering target used to make the thin film is also provided. In addition, an Ni—Fe alloy sputtering target for forming magnetic thin films is provided. The sputtering target is characterized in that it has: an oxygen content of 50 ppm or less; an S content of 10 ppm or less; a carbon content of 50 ppm or less, and a total content of metal impurities other than the alloy components of 50 ppm or less. Such an Ni—Fe alloy target can be produced by melting and alloying high-purity materials obtained by dissolving the raw materials in hydrochloric acid, and performing ion exchange, activated-charcoal treatment, and electrolytic refining.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: July 31, 2001
    Assignee: Japan Energy Corporation
    Inventors: Yuichiro Shindo, Tsuneo Suzuki
  • Patent number: 6190516
    Abstract: A planar ferromagnetic sputter target is provided for use as cathode in the magnetron sputtering of magnetic thin films, wherein the ferromagnetic material has localized regions of differing magnetic permeability. A solid, unitary, planar sputter target is formed from a ferromagnetic material, such as cobalt, nickel, iron or an alloy thereof, and this planar target is subjected to mechanical deformation, heat treatment, and/or thermal-mechanical treatment to create regions within the sputter target having different permeability than adjacent regions. The permeability differences in the ferromagnetic sputter target guides the path of the magnetic flux flow through the target to thereby increase the magnetic leakage flux at the target sputtering surface.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: February 20, 2001
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Wei Xiong, Hung-Lee Hoo, Peter McDonald
  • Patent number: 6190465
    Abstract: Soft magnetic alloy of the iron-nickel type, the chemical composition of which comprises, by weight: 40%≦Ni+Co≦65%; 0%≦Co≦7%; 2%≦Cr≦5%; 1%≦Ti≦3%; 0%≦Al≦0.5%; 0%≦Mn+Si≦2%; optionally, up to 3% Mo, 2% W, 2% V, 1.5% Nb, 1% Ta and 3% Cu, the sum of the Cr, Mo, W, V, Nb, Ta and Cu contents being less than 7% and the sum of the Mo, W, V, Nb, Ta and Cu contents being less than 4%; the balance being iron and impurities, such as carbon, sulfur and phosphorus, resulting from the smelting process, the chemical composition furthermore satisfying the relationships: Cr<5−0.015×(Ni+Co−52.5)2, if: Ni+Co≦52.5; Cr<5−0.040×(Ni+Co−52.5)2, if: Ni+Co≧52.5; the alloy having a saturation induction Bs of greater than 0.9 tesla, a coercive field of less than 10 A/m, an electrical resistivity p of greater than 60 &mgr;&OHgr;.cm and a hardness of greater than 200 HV. Process for manufacturing the alloy and uses.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: February 20, 2001
    Assignee: Imphy Ugine Precision
    Inventors: Lucien Coutu, Laurent Chaput, Thierry Waeckerle
  • Patent number: 6183881
    Abstract: A magnetic thin film forming method forms a magnetic thin film on a conductive film by electroplating using a plating bath containing Ni ions, Fe ions, Mo ions and an organic acid. A concentration of the organic acid in the plating bath is 3-20 times a concentration of the Mo ions in the plating bath. An organic acid concentration in the plating bath versus an Mo ion concentration of the plating bath is set to be a suitable value, whereby an Mo mixed amount in the magnetic thin film can be set to be a suitable value. Accordingly, a magnetic thin film having a large specific resistance value and good magnetic characteristics can be formed.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: February 6, 2001
    Assignee: Fujitsu Limited
    Inventor: Sanae Shimizu
  • Patent number: 6123783
    Abstract: A method for making a magnetic data storage target includes warm-rolling a magnetic alloy sheet at a temperature of less than about 1200.degree. F., optimally followed by annealing. The method results in increased pass-through-flux (PTF) and improved performance in magnetron sputtering applications.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: September 26, 2000
    Assignee: Heraeus, Inc.
    Inventors: Michael Bartholomeusz, Michael Tsai
  • Patent number: 6120617
    Abstract: For manufacturing a pulse generator wherein a voltage pulse dependent on the change in magnetic field can be achieved by sudden magnetic reversal (Barkhausen skip) given an applied magnetic field, an iron alloy is employed for one of the materials of the composite member, the additional alloy constituents of this iron alloy being selected such that a structural conversion with volume change respectively occurs at different temperatures. For producing the stressed condition, a thermal treatment is then implemented, which includes heating above the upper transition temperature and a cooling below the lower transition temperature. As a result, substantially greater stresses between the materials of the composite member arise, causing a pulse behavior significantly improved in comparison to known pulse generators of the type capable of recognizing constant or alternating magnetic fields.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: September 19, 2000
    Assignee: Vacuumschmelze GmbH
    Inventors: Gernot Hausch, Christian Radeloff, Gerd Rauscher
  • Patent number: 6093262
    Abstract: A ferromagnetic, high strength, corrosion resistant material for use in electromagnetic equipment. The material comprises Cobalt or Nickel or a combination of these elements in an amount equal to or greater than 60% by weight, with the balance comprising one of a group consisting of Beryllium, Lithium, Aluminum, or Titanium. In different embodiments of the invention, 3% or less of the material comprises Beryllium, with the balance comprising Nickel or Cobalt. The material provides adequate yield strength for use downhole in wellbores, is highly resistant to corrosion induced by downhole well fluids and sea water, and has high ferromagnetic characteristics suitable for use in solenoid valves and other downhole well equipment.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: July 25, 2000
    Assignee: PES, Inc.
    Inventor: Brett Bouldin
  • Patent number: 6018296
    Abstract: A resonator for use in a marker in a magnetomechanical electronic article surveillance system is formed by a planar strip of an amorphous magnetostrictive alloy having a composition Fe.sub.a Co.sub.b Ni.sub.c Si.sub.x B.sub.y M.sub.z wherein a, b, c, x, y, and z are at % and a+b+c+x+y+z=100, a+b+c>75, a>15, b<20, c>5 and z<3, wherein M is at least one element selected from the group consisting of C, P, Ge, Nb, Mo, Cr and Mn, the amorphous magnetostrictive alloy having a resonant frequency f.sub.r which is a minimum at a field strength H.sub.min and having a linear B-H loop up to at least a field strength which is about 0.8 H.sub.min and a uniaxial anisotropy perpendicular to the plane of the strip with an anisotropy field strength H.sub.k which is at least as large as H.sub.min and, when driven by an alternating signal burst in the presence of a bias field H.sub.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: January 25, 2000
    Assignee: Vacuumschmelze GmbH
    Inventor: Giselher Herzer
  • Patent number: 5976715
    Abstract: The invention is embodied in a soft magnetic thin film article comprising an iron--chromium-nitrogen (Fe--Cr--N) based alloy and methods for making such article. The soft magnetic thin film article is formed using an iron--chromium--nitrogen based alloy with tantalum in one embodiment and with at least one of the elements titanium (Ti), zirconium (Zr), hafnium (Hf), vanadium (V), molybdenum (Mo), niobium (Nb) or tungsten (W) in another embodiment. The article is formed such that the alloy has a relatively high saturation magnetization (e.g., greater than approximately 15 kG) and a relatively low coercivity (e.g., less than approximately 2.0 oersteds) in an as-deposited condition or, alternatively, with a very low temperature treatment (e.g., below approximately 150.degree. C.). The inventive films are suitable for use in electromagnetic devices, for example, in microtransformer cores, inductor cores and in magnetic read-write heads.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: November 2, 1999
    Assignee: Lucent Techologies Inc.
    Inventors: Li-Han Chen, Sungho Jin, Wei Zhu, Robert Bruce van Dover
  • Patent number: 5958154
    Abstract: Magnetically-controlled actuator materials are provided that produce large actuation stroke, that exhibit fast actuation response time and corresponding high-frequency operation, and that enable efficient actuation energy conversion at convenient operating temperatures. The actuator materials exhibit an austenitic crystal structure above a characteristic phase transformation temperature and exhibit a martensitic twinned crystal structure below the phase transformation temperature. One actuator material provided by the invention is an alloy composition that can be defined generally as (Ni.sub.a Fe.sub.b Co.sub.c).sub.65-x-y (Mn.sub.d Fe.sub.e Co.sub.f).sub.20+x (Ga.sub.g Si.sub.h Al.sub.i).sub.15+y, where x is between about 3 atomic % and about 15 atomic % and y is between about 3 atomic % and about 12 atomic %, and where a+b+c=1, where d+e+f=1, and g+h+i=1.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: September 28, 1999
    Assignee: Massachusetts Institute of Technology
    Inventors: Robert C. O'Handley, Kari M. Ullakko
  • Patent number: 5858125
    Abstract: A magnetoresistive material of the present invention has a structure in which many clusters are surrounded by a crystal phase of Cu and/or Ag, where each cluster has a grain size of 20 nm or less and composed of an amorphous phase containing at least one ferromagnetic metal element T as a main component selected from Fe, Co and Ni, and at least one element M selected from Ti, Zr, Hf, V, Nb, Ta, Mo and W.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: January 12, 1999
    Assignee: Alps Electric Co., Ltd.
    Inventor: Naoya Hasegawa
  • Patent number: RE38098
    Abstract: Amorphous alloys having the formula Fea Cob Nic Six By Mz are employed as monitoring strips for mechanically oscillating tags, for example for anti-theft protection, together with a source of a pre-magnetization field in which the strip is disposed so as to place the strip in an activated state. In the formula, M denotes one or more elements of groups IV through VII of the periodic table, including C, Ge and P, and the constituents in at % meet the following conditions: a lies between 20 and 74, b lies between 4 and 23, c lies between 5 and 50, with the criterion that b+c>14, x lies between 0 and 10, y lies between 10 and 20, and z lies between 0 and 5 with the sum x+y+z being between 12 and 21. These alloys have a resonant frequency associated therewith and when passed through an alternating field whose alternation frequency coincides with the resonant frequency, a pulse having a signal amplitude is produced.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: April 29, 2003
    Assignee: Vacuumschmelze GmbH
    Inventor: Giselher Herzer