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| Number | Title | Issue Date |
| 8071018 | High carbon hot-rolled steel sheet A high carbon hot-rolled steel sheet which is a hot-rolled spheroidizing annealed material, including 0.2 to 0.7% C, 2% or less Si, 2% or less Mn, 0.03% or less P, 0.03% or less S, 0.08% or less Sol.Al., and 0.01% or less N, by mass, which contains carbide having a ... | 12/06/2011 |
| 7416615 | Very-high-strength and low-density, hot-rolled steel sheet and manufacturing process 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%≦ti... | 08/26/2008 |
| 7226493 | Method for grain refining of steel, grain refining alloy for steel and method for producing grain refining alloy The present invention relates to a method for grain refining of steel. A grain refining alloy having a composition FeXY where X is one or more elements selected from the group consisting of Cr, Mn, Si, Ni, and Mo and where Y is one or more oxide and/or sulphide and ... | 06/05/2007 |
| 7198658 | Method for producing feed material for molten metal production and method for producing molten metal The prevent invention provides a method for producing a feed material for molten metal production and a method for producing a molten metal capable of sufficiently carbonizing biomass and effectively using carbonized biomass as a reducing agent. In the method for pr... | 04/03/2007 |
| 7004493 | Ski edge profile The invention relates to a ski edge profile made from steel. To further improve the sliding properties compared to the ski edge profiles which are known from the prior art, according to the invention it is proposed for the ski edge profile to consist of a steel allo... | 02/28/2006 |
| 6918966 | Low iron loss and low noise grain-oriented electrical steel sheet and a method for producing the same The object of the present invention is to provide a low iron loss and low noise grain-oriented electrical steel sheet for securing both low core loss and low noise of a transformer at the same time. The present invention relates to a grain-oriented electrical... | 07/19/2005 |
| 6822831 | Magnetic thin film, magnetic thin film forming method, and recording head An object of the present invention is to provide a recording head having a magnetic pole simultaneously possessing a high saturation magnetic flux density, a high permeability and a high electric resistivity, and the magnetic pole of the recording head is a polycrys... | 11/23/2004 |
| 6800146 | Magnetic circuit member A magnetic circuit member contains a matrix portion including iron and silicon; and graphite particles in the matrix. Each of the graphite particles has either a spherical shape or a compact vermicular shape. The inclusion of graphite particles having a relatively l... | 10/05/2004 |
| 6723914 | Composite magnetic tape 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 equi... | 04/20/2004 |
| 6695985 | Electromagnetic wave suppressor sheet An electromagnetic wave suppressor sheet formed into a sheet-like shape out of a material made of synthetic resin in which powder of conjugated magnetic particles surface-treated with an insulating inorganic material has been dispersed.... | 02/24/2004 |
| 6565674 | High flux density grain-oriented electrical steel sheet excellent in high magnetic field core loss property and method of producing the same A high flux density grain-oriented electrical steel sheet excellent in high magnetic field core loss property containing, in percentage by weight, not greater than 0.005% of C, 2.0-7.0% of Si, not greater than 0.2% of Mn, one or both of S and Se in a tota... | 05/20/2003 |
| 6562207 | Refractory metal silicide alloy sputter targets, use and manufacture thereof Sputter target, method of manufacture of same and sputter coating process using the target as a sputtering source are disclosed. The sputter target comprises an Me/Si multi-phase, consolidated blend wherein the Si component is present in a very small amou... | 05/13/2003 |
| 6531001 | Non-oriented magnetic steel sheet having low iron loss and high magnetic flux density and manufacturing method therefor Non-oriented magnetic steel sheets, which are mainly used as materials for iron cores for use in electric apparatuses, have a low iron loss and a high magnetic flux density at the same time. The non-oriented magnetic steel sheet comprises from about 1.5 t... | 03/11/2003 |
| 6444168 | Apparatus comprising furnaces, reactors or conduits used in applications requiring anti-coking properties and novel steel compositions In order to produce elements for furnaces, reactors or conduits on the walls of which coke can appear, steels are used with a composition which is adapted to resist coking comprising, by weight, at most 0.25% of C, 1.5% to 5% of Si, 4% to 10% of Cr, 0.5% ... | 09/03/2002 |
| 6432227 | Electromagnetic steel sheet and process for producing the same Electromagnetic steel sheet from a high-purity steel slab, composed essentially of Si 2.0 to 8.0 wt %, Mn 0.005 to 3.0 wt % and Al 0.0010 to 0.012 wt % with each of Se, S, N and O each not more than 30 ppm.... | 08/13/2002 |
| 6428632 | Non-oriented electromagnetic steel sheet having reduced magnetic anisotropy in high frequency region and excellent press workability According to the invention, a nonoriented electromagnetic steel sheet being small in the magnetic anisotropy in a high frequency zone and thus excellent in the magnetic properties as a rotating machine and having an excellent press formability such as pun... | 08/06/2002 |
| 6423157 | Method of making grain-oriented magnetic steel sheet having low iron loss Grain-oriented magnetic steel sheet made by the method comprising of hot rolling and final finish annealing, wherein (1) the O content in the steel slab is limited to up to about 30 wtppm; (2) for the entire steel sheet including an oxide film before final finish ... | 07/23/2002 |
| 6355212 | Alloy for corrosion-resistant coatings or surface coatings 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: chro... | 03/12/2002 |
| 6322638 | Electromagnetic steel sheet having excellent high-frequency magnetic properties Electromagnetic steel sheets which contain Cr in an amount of from about 1.5 to 20% by weight and Si in an amount of from about 2.5 to 10% by weight, while having a total amount of C and N of not larger than about 100 ppm by weight, and which has a specif... | 11/27/2001 |
| 6293988 | Inoculant and inoculant method for gray and ductile cast irons A new technique for producing ferrosilicon free inoculating agents for gray and ductile irons utilizing oxy-sulfide forming elements combined with sulfur and oxygen and 1) mechanically pressed into an insert or tablet for placement into foundry sand molds... | 09/25/2001 |
| 6210496 | High-strength high-workability cold rolled steel sheet having excellent impact resistance A cold rolled steel sheet having high strength and high formability and having excellent crushing performance can include 0.05-0.40 mass % of C, 1.0-3.0 mass % of Si, 0.6-3.0 mass % of Mn, 0.02-1.5 mass % of Cr, 0.010-0.20 mass % of P and 0.01-0.3 mass % ... | 04/03/2001 |
| 6162306 | Electromagnetic steel sheet having excellent high-frequency magnetic properities and method Electromagnetic steel sheets which contain Cr in an amount of from about 1.5 to 20% by weight and Si in an amount of from about 2.5 to 10% by weight, while having a total amount of C and N of not larger than about 100 ppm by weight, and which has a specif... | 12/19/2000 |
| 6103022 | Grain oriented electrical steel sheet having very low iron loss and production process for same In a grain oriented electrical steel sheet used for cores of transformers and generators, a high alignment degree of grain orientations reduces iron loss, by precipitating very fine AlN or/and BN and providing strong inhibiting effect against the growth o... | 08/15/2000 |
| 6060172 | Fe-based rapidly quenched metal strip The present invention relates to a rapidly quenched metal strip used as a core material for transformers, magnetic shields, choke coils, etc., and to an Fe-based rapidly quenched metal strip having a strip thickness exceeding 20 μm and up to 70 μm, wher... | 05/09/2000 |
| 5944917 | Stainless steel for ozone added water and manufacturing method thereof A stainless steel having excellent corrosion resistance to ozone added water, such as ozone added ultrapure water used in semiconductor manufacturing processes and the like, as well as a manufacturing method. The stainless steel comprises a base metal and... | 08/31/1999 |
| 5919319 | Iron-cobalt alloy, process for manufacturing a strip made of iron-cobalt alloy, and strip obtained An Iron-cobalt alloy, whose chemical composition contains, by weight: 5%ࣘCoࣘ40% 0%ࣘSiࣘ5% 0.2%ࣘAlࣘ5% 0.5%ࣘSi+Alࣘ5% the balance being iron and impurities resulting from the smelting. Process for manufacturing a strip and strip obtained.... | 07/06/1999 |
| 5902419 | Silicon steel sheet and method thereof A silicon steel sheet contains 0.01 wt. % or less C, 4 to 10 wt. % Si, 0.5 wt. % or less Mn, 0.01 wt. % or less P, 0.01 wt. % or less S, 0.2 wt. % or less sol. Al, 0.01 wt. % or less N, 0.02 wt. % or less 0 and the balance being Fe. The silicon steel shee... | 05/11/1999 |
| 5885374 | Process for producing grain oriented silicon steel sheet and decarburized sheet Producing a grain oriented silicon steel sheet by controlling physical properties of the oxides layer, formed in decarburization annealing, in the surface layer of a steel sheet. A silicon compound is adhered to the surface of steel sheet before the decar... | 03/23/1999 |
| 5876520 | Semiprocessed nonoriented magnetic steel sheet having excellent magnetic characteristics and method for making the same The present invention relates to a semiprocessed nonoriented magnetic steel sheet which is used in iron cores of motors and transformers, finished to a final product by rolling having a reduction rate of 2 to 18% after final annealing by a manufacturer, a... | 03/02/1999 |
| 5873954 | Amorphous alloy with increased operating induction A ferromagnetic amorphous metallic alloy strip is annealed to minimize exciting power rather than core loss. The strip has an exciting power less than 0.5 VA/kg when measured at 60 Hz and an operating induction of 1.40 to 1.45 Tesla, the measurement being... | 02/23/1999 |
| 5871593 | Amorphous Fe-B-Si-C alloys having soft magnetic characteristics useful in low frequency applications A rapidly solidified amorphous metallic alloy is composed of iron, boron, silicon and carbon. The alloy exhibits in combination high saturation induction, high Curie temperature, high crystallization temperature, low core loss and low exciting power at li... | 02/16/1999 |
| 5833769 | Wide iron-based amorphous alloy thin strip, and method of making the same A wide amorphous alloy thin strip having a width of 70 mm or above and useful as an iron core of electric power transformers, composed of Fe--Si--B--C amorphous alloy. Dispersion of an amorphous structure in the width direction is prevented and deteriorat... | 11/10/1998 |
| 5779819 | Grain oriented electrical steel having high volume resistivity The present invention relates to the production of a grain oriented electrical steel composition having a volume resistivity of at least 50 micro-ohm-cm. The melt composition of the steel consists essentially of, in weight %, about 0.08% max carbon, about... | 07/14/1998 |
| 5772728 | Method for upgrading of silicon-containing residues obtained after leaching of copper-containing residues from chlorosilane synthesis The present invention relates to a method for upgrading silicon-containing solid residues obtained after leaching of copper from copper-containing residues from direct synthesis of organochlorosilanes. Solid residue, optionally together with an oxidation ... | 06/30/1998 |
| 5766375 | Non-oriented magnetic steel sheet having excellent bending workability A non-oriented magnetic steel sheet having excellent bending workability and magnetic characteristics is obtained by continuous annealing. The non-oriented magnetic steel sheet is obtained by the method comprising cold rolling a hot-rolled steel sheet, co... | 06/16/1998 |
| 5728237 | Magneto-elastically excitable tag having a reliably deactivatable amorphous alloy for use in a mechanical resonance monitoring system 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 ... | 03/17/1998 |
| 5725686 | Magnetic core for pulse transformer and pulse transformer made thereof A pulse transformer comprising a magnetic core formed of a thin strip of nanocrystalline soft magnetic alloy in which fine nanocrystalline grains having a grain size of not more than 50 nm occupy at least 50 volume % of the structure, characterized in tha... | 03/10/1998 |
| 5718775 | Grain-oriented electrical steel sheet and method of manufacturing the same Grain-oriented electrical steel sheet having a very low iron loss with controlled area ratio of fine grains, average grain size of coarse grains, obliquity of the grain boundary line of coarse grains, permeability under 1.0 T, and film tension.... | 02/17/1998 |
| 5702541 | High magnetic density, low iron loss, grain oriented electromagnetic steel sheet and a method for making In a grain oriented electromagnetic steel sheet exhibiting high magnetic flux density and low iron loss, having a composition containing about 2.5 to 4.0 weight percent of Si, and about 0.005 to 0.06 weight percent of Al, and i) at least about 95 percent by area ra... | 12/30/1997 |
| 5676770 | Low leakage flux, non-oriented electromagnetic steel sheet, and core and compact transformer using the same This invention relates to a non-oriented electromagnetic steel sheet with low leakage flux for a compact transformer and a method for making the same. After stress relief annealing, the magnetic permeability μC of the sheet in the direction tr... | 10/14/1997 |
