Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8177920 | Grain-oriented electrical steel sheet and process for producing the same The present invention provides a grain-oriented electrical steel sheet produced by a method for promoting secondary recrystallization without an inhibitor, the grain-oriented electrical steel sheet including 2.0% or more and 4.5% or less of Si and 0.01% or more and ... | 05/15/2012 |
| 7942982 | Grain-oriented electrical steel sheet excellent in coating adhesion and method of producing the same Grain-oriented electrical steel sheet excellent in coating adhesion is provided. The steel sheet contains Si: 2 to 7% mass % and has a primary coating composed mainly of forsterite on its surface. A compound (A) containing one or more elements selected from among Ca... | 05/17/2011 |
| 7887646 | Oriented magnetic steel plate excellent in coating adhesion and method of production of same The present invention provides oriented magnetic steel plate with excellent coating adhesion, in particular coating edge peeling resistance, that is, oriented magnetic steel plate with excellent coating adhesion containing, by mass %, Si: 1.8 to 7% and having a prim... | 02/15/2011 |
| 7833360 | Method of producing grain-oriented electrical steel sheet very excellent in magnetic properties The invention provides a method of producing a grain-oriented electrical steel sheet of the complete solid solution nitrided type that is good in glass film formation and excellent in magnetic properties, which method comprises: C: 0.025 to 0.09%, hot-rolling the st... | 11/16/2010 |
| 7442260 | Grain-oriented electrical steel sheet superior in electrical characteristics and method of production of same The present invention provides a grain-oriented electrical steel sheet with an extremely low core loss by scanning by a small focused laser beam spot and a method of production of the same, that is, a grain-oriented electrical steel sheet improved in electrical char... | 10/28/2008 |
| 7435304 | Coating composition, and method for manufacturing high silicon electrical steel sheet using thereof There are provided a coating composition for siliconizing, and a method for manufacturing a high silicon electrical steel sheet using the same. The coating composition includes: a Fe—Si-based composite compound sintered powder having a grain size of −325 mesh an... | 10/14/2008 |
| 7371291 | Grain-oriented magnetic steel sheet having no undercoat film comprising forsterite as primary component and having good magnetic characteristics A grain oriented electromagnetic steel sheet is free from an undercoating mainly composed of forsterite (Mg2SiO4), excellent in processability and magnetic properties and useful to production cost, and has a composition containing, by % by mass... | 05/13/2008 |
| 7364629 | Method for manufacturing grain-oriented silicon steel sheets with mirror-like surface In a method for manufacturing grain-oriented silicon steel with mirror-like surface by applying an aqueous slurry of an annealing separator, magnetic properties are stabilized by controlling the amount of moisture, carried in the annealing separator consisting mainl... | 04/29/2008 |
| 7291230 | Grain-oriented electrical steel sheet extremely excellent in film adhesiveness and method for producing the same The present invention: relates to a grain-oriented electrical steel sheet and a double-oriented electrical steel sheet which are used as soft magnetic materials for electrical machinery and apparatus; and is a grain-oriented electrical steel sheet extremely excellen... | 11/06/2007 |
| 7282102 | Method for manufacturing high silicon grain-oriented electrical steel sheet with superior core loss property A method for manufacturing a high silicon grain-oriented electrical steel sheet. In a method for manufacturing a high silicon grain-oriented electrical steel sheet, comprising the steps of: reheating and hot-rolling a steel slab to produce a hot-rolled steel sheet; ... | 10/16/2007 |
| 7226658 | Electrical sheet having insulating coating and insulating coating A magnetic steel sheet with an insulating coating having a good punchability, high sliding performance, excellent handleability in processing, and good uniformity and adhesiveness is achieved by forming a chromium-free insulating coating containing 20 parts by mass ... | 06/05/2007 |
| 7198682 | Process for the production of grain oriented electrical steel A process for the production of electrical steel strips, in which a strip is directly cast from molten steel and contains alloy elements apt to generate a precipitation of sulphides and/or nitrides apt to inhibit the grain growth. The strip is hot rolled in-line wit... | 04/03/2007 |
| 7192494 | Method and apparatus for annealing copper films A method and apparatus for annealing copper. The method comprises forming a copper layer by electroplating on a substrate in an integrated processing system and annealing the copper layer in a chamber inside the integrated processing system. ... | 03/20/2007 |
| 7192492 | Process for the control of inhibitors distribution in the production of grain oriented electrical steel strips In the production of electrical steel strips, a special islab-reheating treatment before hot rolling is carried out so that the maximum temperature within the furnace is reached by the slab well before its extraction from the furnace. During the heating stage and pe... | 03/20/2007 |
| 7190101 | Stator coil arrangement for an axial airgap electric device including low-loss materials A dynamoelectric, rotating electric machine includes a stator assembly that includes stacked stator coil windings. The machine is preferably a polyphase, axial airgap device. Improved slot filling results from the stacked stator coil configuration. Device performanc... | 03/13/2007 |
| 7105975 | Efficient axial airgap electric machine having a frontiron A rotating, dynamoelectric machine, such as an electric motor, a generator, or a regenerative motor, comprises a stator assembly that includes a backiron section, a plurality of stator tooth sections, and a frontiron. The dynamoelectric machine has an axial airgap-t... | 09/12/2006 |
| 7096075 | Apparatus, method and program for physical state controller For determination as to whether there is a possibility that temperature control satisfying conditions according to an upper limit LH_i and a lower limit LL_i of the annealing control temperatures of annealing object steel sections i will be realized under restrictio... | 08/22/2006 |
| 7077919 | Magnetic core insulation Disclosed herein is an insulating material between adjacent metal layers of a soft magnetic core, and a process for forming this insulating material. The insulating material is composed of the native metal oxides of the metallic core material. ... | 07/18/2006 |
| 7063780 | Method for indirect-electrification-type continuous electrolytic etching of metal strip and apparatus for indirect-electrification-type continuous electrolytic etching The present invention provides a method for indirect-electrification-type continuous electrolytic etching of a metal strip suitable for producing a low-core-loss, grain-oriented silicon steel sheet not susceptible to the deterioration of core loss after stress-relie... | 06/20/2006 |
| 7045025 | Grain-oriented electrical steel sheet excellent in magnetic properties and method for producing the same A low core loss grain-oriented electrical steel sheet that does not have a significant deterioration in a magnetic flux density and a decrease of a space factor, and which may withstand stress-relieving annealing is provided. Melted and re-solidified layers can be f... | 05/16/2006 |
| 7034427 | Selective alignment of stators in axial airgap electric devices comprising low-loss materials An axial gap dynamoelectric machine comprises first and second stators disposed coaxially with an intermediate rotor. The stators are selectively aligned with an axial offset between the positions of their respective teeth and slots. The stators comprise toroidal co... | 04/25/2006 |
| 7011139 | Method of continuous casting non-oriented electrical steel strip Non-oriented electrical steels are widely used as the magnetic core material in a variety of electrical machinery and devices, particularly in motors where low core loss and high magnetic permeability in all directions of the strip are desired. A method for producin... | 03/14/2006 |
| 6995484 | Coating compositions for electronic components and other metal surfaces, and methods for making and using the compositions A method is disclosed for providing inorganic and/or organic coating compositions onto rotor cores to eliminate soldering during aluminum injection. These coatings can also be applied upon electric motor rotors and/or stators laminates as well as other electronic co... | 02/07/2006 |
| 6974517 | Lid with window hermetically sealed to frame, and a method of making it An apparatus (10) includes a digital micromirror device (16) disposed within a housing (11) that has an opening (13) hermetically sealed by a lid (17). The lid includes a radiation transmissive window (22) with peripheral ed... | 12/13/2005 |
| 6964711 | Process for the production of grain oriented electrical steel strips A process for the production of grain oriented electrical Fe-Si strips in which a Si-containing alloy is directly cast as a strip between 2.5–5.0 mm thick and cold rolled in one stage, or in more stages with intermediate annealing, to a final thickness of between ... | 11/15/2005 |
| 6955980 | Reducing the migration of grain boundaries A method of forming a semiconductor device includes implanting a precipitate into a gate conductor of an at least partially formed semiconductor device. The gate conductor including a plurality of semiconductor grains. The boundaries of adjacent grains forming a dop... | 10/18/2005 |
| 6936792 | Furnace cart and load transfer system for high temperature vacuum furnaces and process therefor Furnace cart assembly for loading high temperature vacuum furnaces for treating target material, for example, metal parts, under extreme temperature and vacuum environments. The furnace cart includes electrical heating elements as an integral part of the cart, which... | 08/30/2005 |
| 6929704 | Grain-oriented electromagnetic steel sheet A grain-oriented electromagnetic steel sheet having a multiplicity of fine grains having a diameter of about 3 mm or less on the surface of the steel sheet, in a numerical ratio of about 65% or more and of about 98% or less relative to the constituting grains that p... | 08/16/2005 |
| 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 |
| 6899768 | Magnesium oxide particle aggregate The present invention is related to a magnesium oxide particle aggregate with the requirement of a first inflection point diameter is more than 0.30×10−6 to 0.60×10−6 m, a particle void volume is 0.50×10−3 to 0.90×10âˆ... | 05/31/2005 |
| 6835250 | Magnesium oxide particle aggregate An object of the present invention is to provide a magnesium oxide particle aggregate having a controlled particle aggregation structure so that the solid phase-solid phase reaction between magnesium oxide and the SiO2 film on the surface can be appropria... | 12/28/2004 |
| 6811900 | Unidirectional silicon steel sheet of ultra-low iron loss and method for production thereof When plural-layer ceramic coatings are formed on a surface of an grain-oriented silicon steel sheet after finish annealing according to the invention, TiNO coating is formed as a first coating layer by a hollow cathode process under an application of a high bias vol... | 11/02/2004 |
| 6758915 | Grain oriented electromagnetic steel sheet exhibiting extremely small watt loss and method for producing the same The invention is a grain-oriented magnetic steel sheet having extremely low iron loss, suitable for use as an iron core material for transformers and power generators, and a method for producing the same. The method includes forming a coating layer on a surface of a... | 07/06/2004 |
| 6733599 | Method for producing grain-oriented silicon steel sheet not having inorganic mineral film The present invention provides a method for producing a grain-oriented silicon steel sheet not having inorganic mineral films by using an annealing separator capable of preventing the inorganic mineral films composed of forsterite (Mg2SiO4), an... | 05/11/2004 |
| 6613160 | Method to produce grain-oriented electrical steel sheet having high magnetic flux density The present invention, in a method to produce a grain-oriented electrical steel sheet, proposes conditions for stable production by clarifying the causes by which secondary recrystallization is rendered unstable when primary recrystallization is controlle... | 09/02/2003 |
| 6580348 | Flat magnetic core A toroidal tape core is produced from magnetic sheets (1) which may have slits (4). In order to improve the behavior of the toroidal cores (3) at high frequencies, the magnetic sheets (1) have a high surface roughness. The surface roughness of each magnet... | 06/17/2003 |
| 6558479 | 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 electr... | 05/06/2003 |
| 6527876 | Silicon steel sheet and method for producing the same A silicon steel sheet having low iron loss of high frequency has a surface layer of the steel sheet which has Si concentration higher than Si concentration of a center portion of the steel sheet. Si concentration of sheet thickness center is 3.4 wt. % or ... | 03/04/2003 |
| 6524400 | Process for the production of grain-oriented electric quality sheet with low remagnetization loss and high polarization A process for the production of grain-oriented electric quality sheet by melting a silicon steel and casting the melt continuously into a strand having a thickness of 25-100 mm. During solidification the strand is cooled to a temperature above 700° C. an... | 02/25/2003 |
| 6471787 | Process for the production of oriented-grain electrical steel sheet with high magnetic characteristics A process for the production of oriented-grain electrical steel sheet with high magnetic characteristics, and more precisely a process in which the slab obtained from continuous casting is continuously nitrided by a reaction between aluminium and nitrogen... | 10/29/2002 |
