Over 2 Percent Silicon Containing Patents (Class 420/78)
  • Patent number: 9892834
    Abstract: A coil component having a magnetic material and a coil formed on a surface of or inside the magnetic material. The magnetic material is constituted by a grain compact formed by compacting multiple metal grains that in turn are constituted by an Fe—Si—M soft magnetic alloy (where M is a metal element that oxidizes more easily than Fe), wherein individual metal grains have oxide film formed at least partially around them; the grain compact is formed primarily via bonding between oxide films formed around adjacent metal grains; and the apparent density of the grain compact 1 is 5.2 g/cm3 or more, or preferably 5.2 to 7.0 g/cm3.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: February 13, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Hideki Ogawa, Atsushi Tanada
  • Publication number: 20150013845
    Abstract: A hot strip for producing an electric steel sheet has the following alloy composition in weight %: C: 0.001 to 0.08 Al: 4.8 to 20 Si: 0.05 to 10 B: up to 0.1 Zr: up to 0.1 Cr: 0.1 to 4, remainder iron and melting related impurities.
    Type: Application
    Filed: January 30, 2013
    Publication date: January 15, 2015
    Inventors: Zacharias Georgeou, Alexander Redenius
  • Publication number: 20130337215
    Abstract: A used component, such as an engine block or engine head, has at least one dimension that does not match a dimensional specification for the component. A thermal spray coating of FeAlSiC is applied to build up the dimension. The excess coating is milled off so that the body and coating have a second shape that matches the dimensional specification for the component. The coating has an ordered DO3 crystal structure with a stable aluminum oxide scale that produces oxidation resistance at about 700° C.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 19, 2013
    Applicant: CATERPILLAR, INC.
    Inventors: Robert Eugene Sharp, Kegan Jon Luick, M. Brad Beardsley, Kristin Ann Schipull, Daniel Joseph Sordelet, Jarrod David Moss, Mark David Veliz
  • Patent number: 8257646
    Abstract: UHC lightweight structural steel with improved scaling resistance, comprising the composition in % by weight C: 1 to 1.6, Al: 5 to 10, Cr: 0.5 to 3, Si: 0.1 to 2.8, the remainder iron and customary impurities accompanying steel, and a method for producing components hot-formed from this in air, wherein hot-forming temperatures of from 800 to 1050° C. are used, depending on the Si content.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: September 4, 2012
    Assignee: Daimler AG
    Inventors: Tilmann Haug, Wolfgang Kleinekathoefer, Frédéric Pol
  • Patent number: 7935883
    Abstract: A thermoelectric material has a composition expressed by (Fe1-pVp)100-x(Al1-qSiq)x (0.35?p?0.7, 0.01?q?0.7, 20?x?30 atomic %). The thermoelectric material includes a crystal phase having an L21 structure or a crystal phase having a B2 structure as a main phase.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: May 3, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinya Sakurada, Naoki Shutoh
  • Publication number: 20100021339
    Abstract: UHC lightweight structural steel with improved scaling resistance, comprising the composition in % by weight C: 1 to 1.6, Al: 5 to 10, Cr: 0.5 to 3, Si: 0.1 to 2.8, the remainder iron and customary impurities accompanying steel, and a method for producing components hot-formed from this in air, wherein hot-forming temperatures of from 800 to 1050° C. are used, depending on the Si content.
    Type: Application
    Filed: August 21, 2007
    Publication date: January 28, 2010
    Applicant: Daimler AG
    Inventors: Tilmann Haug, Wolfgang Kleinekathoefer, Frédéric Pol
  • Patent number: 7416615
    Abstract: The invention relates to a high-resistant, low-density hot laminated sheet steel comprising the following elements expressed in weight per cent: 0.04%:9 carbon?0.5%; 0.05%?manganese?3%, being able to contain hardening elements: 0.01%?niobium?0.1 0.01%?titanium?0.2% 0.01?vanadium?0.2%, either individually or combined, and/or elements acting on the transformation temperatures, 0.0005%?boron?0.005%; 0.05%?nickel?2%; 0.05%?chrome?2%; 0.05%?molybdenum?2%, either individually or combined, the remainder being iron and elements which are inherent to production, characterized in that it comprises: 2%?silicon?10%; 1%?aluminium?10%. The invention also relates to the production thereof.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: August 26, 2008
    Assignee: USINOR
    Inventors: Xavier Bano, Christian Giraud
  • Patent number: 6723914
    Abstract: There is provided a composite magnetic tape which can be easily applied irrespective of the inside or outside of an electronic equipment, prevent radiation of undesired electromagnetic waves from the inside of the equipment and reflection into the inside of the equipment, and shield electromagnetic noise from the outside of the equipment. The tape may be in the form of an adhesive tape or a self-welding tape. The tape is constituted of a composite magnetic layer formed by dispersing soft magnetic powder into an organic binding agent. Alternatively, it may have a stacked structure of a composite magnetic layer and a conductor layer.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: April 20, 2004
    Assignee: NEC Tokin Corp
    Inventors: Koji Kamei, Norihiko Ono, Mitsuharu Sato
  • Patent number: 6436339
    Abstract: Systems and methods are described for iron aluminum alloys. A composition includes iron, aluminum and manganese. A method includes providing an alloy including iron, aluminum and manganese; and processing the alloy. The systems and methods provide advantages because additions of manganese to iron aluminum alloys dramatically increase the fluidity of the alloys prior to solidification during casting.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: August 20, 2002
    Inventors: Philip J. Maziasz, Alan M. Paris, Joseph D. Vought
  • Patent number: 6355212
    Abstract: The invention is directed to anti-corrosive alloys and relates in particular to an alloy containing cobalt, chromium, aluminum, yttrium, silicon, a metal from the second main group, together with the corresponding oxide, in the following proportions: chromium (Cr) 26.0-30%; aluminum (Al) 5.5-13.0%; yttrium (Y) 0.3-1.5%; silicon (Si) 1.5-4.5%; metal from the second main group (magnesium, calcium, barium, strontium) 0.1-2.0%; oxide of the corresponding metal from the second main group 0.1-2.0%; cobalt (Co) remaining percentage. Preferably, tantalum (Ta) is also added in a proportion of 0.5-4.0%, and the remaining percentage of cobalt is replaced by a remaining percentage of Me, Me being understood to mean a metal which may be nickel (Ni) or iron (Fe) or cobalt (Co) or a composition comprising Ni—Fe—Co, Ni—Fe, Ni—Co, Co—Fe.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: March 12, 2002
    Assignee: Turbocoating SpA
    Inventor: Nelso Antolotti
  • Patent number: 6312531
    Abstract: Soft magnetic powder of Fe—Al—Si system of which magnetostrictive constant &lgr; takes a positive value at the room temperature is employed to produce a magnetic composite article so that a temperature characteristic of core-loss of the article takes a negative value at the room temperature. Excellent magnetic characteristics such as a low core-loss and a high permeability can be obtained at a high frequency band.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: November 6, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Nobuya Matsutani, Yuji Mido, Kazuaki Onishi
  • Patent number: 5919319
    Abstract: An Iron-cobalt alloy, whose chemical composition contains, by weight:5%.ltoreq.Co.ltoreq.40%0%.ltoreq.Si.ltoreq.5%0.2%.ltoreq.Al.ltoreq.5%0.5%.ltoreq.Si+Al.ltoreq.5%the balance being iron and impurities resulting from the smelting. Process for manufacturing a strip and strip obtained.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: July 6, 1999
    Assignee: Imphy S.A.
    Inventor: Georges Couderchon
  • Patent number: 5330706
    Abstract: It is an object to provide a vibration-damping alloy of high strength which has high strength and a high power of damping vibration and can be used to make components of a structure, machine, etc. and reduce effectively any vibration thereof and the noise thereby produced.The vibration-damping alloy of this invention contains more than 0.50 wt. % Si, those proportions of Al and Si which fall within the range defined by a series of points in any of FIGS. 1 to 5, and that proportion of Mn which ranges from 0.1 wt. % to the sum of the proportions of Al and Si, the balance of its composition being Fe and unavoidable impurities. It preferably does not contain more than 0.01 wt. % of any of C, N, O, P and S.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: July 19, 1994
    Assignee: NKK Corporation
    Inventors: Takayuki Ohdake, Toshimichi Ohmori, Toshihiro Takamura, Takemi Yamada, Tetsuya Sampei
  • Patent number: 5200145
    Abstract: The present invention relates to a novel process for producing silicon and/or aluminum containing iron alloy product as well as the material produced from same in either sheet or bulk structure form for electromagnetic circuit application. The process entails modifying an iron feedstock containing less than about 2.5 wt % silicon, aluminum or a combination thereof. The process further consists of diffusion of silicon or silicon and aluminum or aluminum into an iron feedstock by a pack diffusion or a chemical vapor deposition method in which the iron feedstock is heated to a temperature at which diffusion occurs in the presence of a pack containing silicon and/or aluminum sources, a reducing agent, a catalyst, and a filler, or in the presence of a flowing gas stream containing a volatile silicon compound. The resulting iron alloy product, which has a silicon content in the range of 0.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: April 6, 1993
    Assignee: Exxon Research and Engineering Co.
    Inventors: Richard C. Krutenat, Robert S. Barnard, John P. Dismukes, Bernard H. Kear, Horst Witzke
  • Patent number: 5156922
    Abstract: Disclosed herein are acicular magnetic iron based alloy particles for magnetic recording, containing 1.5 to 10 mol % of B based on Fe (calculated as B) and 1.5 to 10 mol % of Co based on Fe (calculated as Co) in the vicinity of the surfaces of said particles and having a saturation magnetization of not less than 125 emu/g and an S.F.D. value of not more than 0.50, and a process for producing the same.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: October 20, 1992
    Assignee: Toda Kogyo Corporation
    Inventors: Akio Mishima, Mamoru Tanihara, Yasutaka Ota, Hirofumi Kawasaki, Kenji Okinaka, Kunio Ikemoto, Kousaku Tamari, Kohji Mori, Norimichi Nagai
  • Patent number: 5073214
    Abstract: A magnetic material having an Fe-Si-Al type magnetic alloy with addition of one or more additive elements selected from a group consisting of Be, Mg, Ca, Sr, Ba, Sc, Y, Nb, Ta and Hf. The material has been subjected to an oxidation heat-treatment so as to contain a predetermined amount of oxygen.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: December 17, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ken Hirota, Mitsuo Satomi, Koichi Kugimiya
  • Patent number: 4865662
    Abstract: An austenitic stainless steel alloy has a composition of about 6 to about 13 percent aluminum, about 7 to about 34 percent manganese, about 0.2 to about 2.4 percent carbon, 0.4 to about 1.3 percent silicon, about 0 to about 6 percent chromium, about 0.5 to about 6 percent nickel, and the balance essentially iron. The relative quantities of the foregoing elements are selected from these ranges to produce a volume percent of ferrite structure in the alloy in the range of about 1 percent to about 8 percent.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: September 12, 1989
    Assignee: Ipsco Inc.
    Inventors: James M. Zimmer, William D. Bailey
  • Patent number: 4820485
    Abstract: A method of producing an alloy containing at least one major ingredient selected from the group consisting of iron (Fe), cobalt (Co), and Nickel (Ni) and having low contents of sulphur, oxygen, and nitrogen, comprises steps of:(a) holding a molten alloy in a container selected from the group consisting of a lime crucible, a lime crucible furnace, a converter and a ladle lined with a basic refractory consisting of 15-85% of calcium oxide (CaO), and 15-75% of magnesium oxide (MgO), wherein said alloy consists essentially of at least one major ingredient selected from the group consisting of iron (Fe), nickel (Ni), and cobalt (Co);(b) adding at least one additive, based on the molten alloy, into said molten alloy in an atmosphere selected from the group consisting of a non-oxidizing atmosphere and a vacuum, wherein said additive is selected from the group consisting of aluminum (Al), aluminum alloys, silicon and silicon alloys;(c) desulphurizing, deoxidizing and denitrifying said molten alloy under an atmosphere
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: April 11, 1989
    Assignees: Mitsui Engineering and Ship Building Co., Ltd., Metal Research Corporation
    Inventors: Tohei Ototani, Toru Degawa, Kenichi Kusumoto, Makoto Ebata
  • Patent number: 4735865
    Abstract: Disclosed is a magnetic head core material having very high corrosion resistance even under severe conditions and a method for preparing the same. The material consists of 3 to 6 wt % of aluminum, 7 to 12 wt % of silicon, not more than 3 wt % of chromium and the substantial balance being iron.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: April 5, 1988
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kumio Nago, Masaru Kadono, Tatsushi Yamamoto, Tetsurou Muramatsu, Mitsuhiko Yoshikawa
  • Patent number: 4683012
    Abstract: A magnetic thin film consisting essentially of Fe, Al and Si and further containing nitrogen has high magnetic permeability and high hardness without lowering the magnetic properties such as saturation magnetic flux density or coercive force.The magnetic thin film has an increased specific resistivity and a lowered eddy current loss in the high frequency region and is suitable for a core material of magnetic transducer heads used in a high frequency region.The magnetic thin film is prepared by, for example, physical vapor deposition or ion implantation.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: July 28, 1987
    Assignee: Sony Corporation
    Inventors: Kazushi Yamauchi, Muneyuki Ogata, Tomio Kobayashi, Makoto Kubota, Tatsuo Kumura
  • Patent number: 4671828
    Abstract: A magnetic thin film consisting essentially of Fe, Al and Si and further containing oxygen has high magnetic permeability and high hardness without lowering the magnetic properties such as saturation magnetic flux density or coercive force.The magnetic thin film has an increased specific resistivity and a lowered eddy current loss in the high frequency region and is suitable for a core material of magnetic transducer heads used in a high frequency region.The magnetic thin film is prepared by, for example, physical vapor deposition or ion implantation.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: June 9, 1987
    Assignee: Sony Corporation
    Inventors: Kazushi Yamauchi, Muneyuki Ogata, Tomio Kobayashi, Makoto Kubota, Tatsuo Kumura
  • Patent number: 4668310
    Abstract: Amorphous alloys having high strength, high hardness, high crystallization temperature, high saturation magnetic induction, low coercive force, high magnetic permeability and particularly low deterioration of magnetic properties with lapse of time, have a composition formula ofT.sub.a X.sub.b Z.sub.c or T.sub.a' X.sub.b' Z.sub.c' M.sub.d,whereinT is at least one of Fe, Co and Ni,X is at least one of Zr, Ti, Hf and Y,Z is at least one of B, C, Si, Al, Ge, Bi, S and P,a is 70-98 atomic %,b is not more than 30 atomic %,c is not more than 15 atomic %,sum of a, b and c is 100 atomic %,M is at least one Mo, Cr, W, V, Nb, Ta, Cu, Mn, Zn, Sb, Sn, Be, Mg, Pd, Pt, Ru, Os, Rh, Ir, Ce, La, Pr, Nd, Sm, Eu, Gd, Tb and Dy,a' is 70-98 atomic %,b' is not more than 30 atomic %,c' is not more than 15 atomic %,d is not more than 20 atomic %, andsum of a', b', c' and d is 100 atomic %.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: May 26, 1987
    Assignees: Hitachi Metals, Ltd., Hitachi, Ltd.
    Inventors: Mitsuhiro Kudo, Shinji Takayama, Yoshizo Sawada, Yasunobu Ogata