Patent application number | Description | Published |
20090052823 | Bearing Apparatus for a Wheel of Vehicle - A vehicle wheel bearing apparatus has an outer member with a body flange and double row outer raceway surfaces. An inner member includes a wheel hub and an inner ring. They include inner raceway surfaces arranged opposite to the double row outer raceway surfaces. Double row rolling elements are freely rollably contained between the outer and inner raceway surfaces. Outer side rolling elements of the double row rolling elements are balls and inner side rolling elements of the double row rolling elements are tapered rollers. A pitch circle diameter of the inner side tapered rollers is set smaller than that of the outer side balls. A substantially conical recess is formed at an outer side end portion of the wheel hub. The depth of the recess extends to at least near the bottom of the inner raceway surface of the wheel hub. The thickness of a portion of the wheel hub where the inner raceway surface is formed is set within a predetermined range. The outer side wall of the wheel hub has a constant thickness substantially along the inner surface of the recess. | 02-26-2009 |
20090116779 | BEARING APPARATUS FOR A WHEEL OF VEHICLE - A vehicle wheel bearing apparatus has an outer member and inner member. The inner member includes a wheel hub and inner ring. The outer member and inner member include respective raceway surfaces. Double row rolling elements are freely rollably contained between the outer and inner raceway surfaces, respectively, of the outer member and the inner member. At least the inner side rolling elements of the double row rolling elements are tapered rollers. A pitch circle diameter of the inner side rolling elements is set smaller than a pitch circle diameter of the outer side rolling elements. A substantially conical recess is formed at an outer side end portion of the wheel hub. The depth of the recess extends near to a shaft shaped portion beyond the bottom of the inner raceway surface of the wheel hub. The thickness of a portion of the wheel hub where the inner raceway surface is formed is set within a predetermined range. The outer side wall of the wheel hub is formed to have a substantially constant thickness along the inner surface of the recess. | 05-07-2009 |
20110086785 | GREASE COMPOSITION FOR AUTOMOBILE WHEEL BEARING - The present invention provides a grease composition for automobile wheel bearings, which contains (a) an urea thickener represented by general formula (1); R | 04-14-2011 |
20120216407 | METHOD OF MANUFACTURING WHEEL SUPPORT BEARING ASSEMBLY - A method of manufacturing a wheel support bearing assembly having a plastically deformed portion engageable with an inclined surface portion of an annular stepped area in the inner race segment. The method includes that the plastically deformed portion, which is of a cylindrical configuration before it is deformed, is formed by pressing a crimping punch, of which front end portion outer peripheral surface is a tapered shape, axially into an inner peripheral surface of the inboard end portion of the hub axle to allow the cylindrical plastically deformed portion to be crimped in the diameter expanded condition. | 08-30-2012 |
Patent application number | Description | Published |
20080292965 | RECHARGEABLE LITHIUM ION BATTERY AND METHOD FOR PRODUCING THE SAME - The present invention relates to a rechargeable lithium ion battery having an electrode plate with a high active material density and high electrolyte permeability. Upon producing the rechargeable lithium ion battery, hollow resin particles that can be collapsed by rolling are incorporated in a positive electrode mixture layer or a negative electrode mixture layer before the electrode mixture layer is rolled. The hollow resin particles are collapsed in the course of rolling the positive electrode mixture layer or the negative electrode mixture layer, so that the active material density can be easily increased. Further, the collapsed resin particles form unevenness on the surface of the electrode plate and also form open pores in the electrode plate, so that electrolyte permeability can be enhanced. As a result, the discharge capacity and rate characteristics of rechargeable lithium ion batteries can be increased. | 11-27-2008 |
20080311471 | Non-aqueous electrolyte secondary battery and production method thereof - A method for producing a non-aqueous electrolyte secondary battery comprising the steps of: (i) mixing a positive electrode active material, a first binder A and a dispersion medium to prepare a paste A, the active material comprising a lithium-containing transition metal oxide; (ii) mixing a conductive agent, a second binder B and a dispersion medium to prepare a paste B, the conductive agent comprising carbon black; (iii) mixing the paste A and the paste B to prepare a positive electrode material paste C; (iv) applying the positive electrode material paste C onto a positive electrode core member and rolling and drying the resultant member to prepare a positive electrode; and (v) fabricating a battery using the positive electrode, a negative electrode and a non-aqueous electrolyte, wherein contact angle θ | 12-18-2008 |
20090325074 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery includes a positive electrode, a negative electrode, a porous heat-resistant layer, and a nonaqueous electrolyte. The positive and negative electrodes reversibly absorb and release lithium ions, respectively. The porous heat-resistant layer is provided between the positive electrode and the negative electrode and includes a metal oxide as filler. The nonaqueous electrolyte is impregnated into the porous heat-resistant layer and exists between the positive electrode and the negative electrode. The filler of the porous heat-resistant layer has a particle diameter of 0.1 μm or more and 5.0 μm or less, D10 in particle size distribution measurement of 0.2 μm or more and 0.6 μm or less, and a mode diameter of 0.80 μm or more and 1.25 μm or less. | 12-31-2009 |
20100190063 | METHOD AND APPARATUS FOR MANUFACTURING MEMBER FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME - At least (i) dispersing and mixing inorganic oxide filler, solvent and binder so as to produce a coating paint; (ii) supplying the coating paint to a gravure coater; and (iii) coating the coating paint to member via a gravure roll are included. The (i) or (ii) includes allowing the coating paint to stand still and removing an aggregate and a precipitate of inorganic oxide filler. | 07-29-2010 |
20110136010 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A nonaqueous electrolyte secondary battery includes: a positive electrode 4 including a positive electrode current collector and a positive electrode material mixture layer containing a positive electrode active material and a binder and provided on the positive electrode current collector; a negative electrode 5; a porous insulating layer 6 interposed between the positive electrode 4 and the negative electrode 5; and a nonaqueous electrolyte. The positive electrode 4 has a tensile extension percentage of 3.0% or more. The binder is made of copolymer containing vinylidene fluoride and hexafluoropropylene. | 06-09-2011 |
20130273455 | ELECTROLYTE MEMBRANE FOR SOLID POLYMER FUEL CELLS, MEMBRANE ELECTRODE ASSEMBLY HAVING SAID ELECTROLYTE MEMBRANE, AND SOLID POLYMER FUEL CELL - An electrolyte membrane for solid polymer fuel cell includes a reinforce membrane made of nonwoven fibers and an electrolyte provided in a space among the nonwoven fibers. The nonwoven fibers have a non-uniform mass distribution in a plane of the electrolyte membrane. A mass of the nonwoven fibers per unit area in a region corresponding to at least part of a peripheral portion of a fuel cell-use gasket frame is greater than a mass of the nonwoven fibers per unit area in a region corresponding to a center portion of the gasket frame. The electrolyte membrane for solid polymer fuel cell is attached to the fuel cell-use gasket frame. | 10-17-2013 |