Abstract: A surface-distortion measuring device and a surface-distortion measuring method can quantitatively, rapidly, and highly accurately measure and evaluate surface-distortion distribution at all of observable points on a specular or semi-specular surface of a measurement target. The device includes pattern displaying means 2 capable of switching and displaying a plurality of kinds of light-and-shade patterns 5, capturing means 3 for capturing mirror images, reflected in the specular or semi-specular surface of a measurement target 1, of the plurality of light-and-shade patterns displayed on the pattern displaying means, and surface-distortion distribution calculating means 10 for performing image processing on the captured mirror images of the plurality of light-and-shade patterns to calculate surface-distortion distribution of the measurement-target surface.

Abstract: The present invention provides a brake booster in which an excellent pedal feeling can be provided even though a brake fluid pressure control unit is disposed between the brake booster and a wheel cylinder. The brake booster according to the present invention performs different methods for controlling a booster based on whether the fluid pressure control unit is in operation, and controls a displacement amount of an assist member so that a change in a master cylinder pressure is within a predetermined range even when the fluid pressure control unit is in operation.

Abstract: A surface-distortion measuring device and a surface-distortion measuring method can quantitatively, rapidly, and highly accurately measure and evaluate surface-distortion distribution at all of observable points on a specular or semi-specular surface of a measurement target. The device includes pattern displaying means 2 capable of switching and displaying a plurality of kinds of light-and-shade patterns 5, capturing means 3 for capturing mirror images, reflected in the specular or semi-specular surface of a measurement target 1, of the plurality of light-and-shade patterns displayed on the pattern displaying means, and surface-distortion distribution calculating means 10 for performing image processing on the captured mirror images of the plurality of light-and-shade patterns to calculate surface-distortion distribution of the measurement-target surface.

Abstract: A brake boost control apparatus has a brake operation member, a master cylinder, a wheel cylinder, a hydraulic pump, a master cylinder pressure detection section detecting a pressure of the brake fluid, a brake stroke amount detection section detecting a stroke amount of the brake operation member, a hydraulic pressure control section that controls a pressure of the wheel cylinder, a boost section which boosts the pressure of the brake fluid and increases the wheel cylinder pressure, and a control unit. The control unit controls at least one of the hydraulic pump and the hydraulic pressure control section so that the stroke amount detected by the brake stroke amount detection section under a boost operation by the boost section and the pressure detected by the master cylinder pressure detection section are maintained at a predetermined relationship.

Abstract: A hydraulic circuit includes a first pressurizing section for pressurizing a wheel cylinder by operating a master cylinder, and a second pressurizing section for pressurizing the wheel cylinder independently of operation of the master cylinder.

Abstract: A restoration device for restoring a system when the BIOS falls in a stall failure includes a first watchdog timer and a second watchdog timer, a setter for setting timer values respectively in the first watchdog timer and in the second watchdog timer, a suspender for suspending the decrement of the timer value of the first watchdog timer when the BIOS is started and also execution of a BIOS process is started, a switch for switching the BIOS data region for starting when the timer value of the first watchdog timer becomes equal to 0 or a prescribed number, a resetter for resetting the system when the timer value of the first watchdog timer becomes equal to 0 or a prescribed number, a suspender for suspending the decrement of the timer value of the second watchdog timer when the BIOS of the system starts and a resetter for resetting the system when the timer value of the second watchdog timer becomes equal to 0 or a prescribed number.

Abstract: There is disclosed a powder magnetic core in which a permeability does not easily drop even when an applied magnetic field intensifies, comprising: a bulk body containing a main component of a powder of an Fe-base alloy having a soft magnetic property, and the balance substantially including a heat-treated insulation binder and a void, wherein an aspect ratio of the powder is in a range of 1 to 1.5, and a volume ratio of the powder in the bulk body is in a range of 40 to 60 volume %, and an initial permeability (?0) has a value which satisfies 6??0?20, and a relation of ?/?0?0.5 is established between K and A, when the permeability is ? with an applied magnetic field of 24 kA/m.

Abstract: The present invention relates to a high strength hot rolled steel sheet containing 0.15% or less C, 0.02 to 0.35% Ti, and 0.05 to 0.7% Mo by weight percentage and consisting essentially of a matrix of ferrite structure single phase and fine precipitates with a grain size of smaller than 10 nm dispersed in the matrix, for example, a high strength hot rolled steel sheet which consists essentially of 0.06% or less C, 0.5% or less Si, 0.5 to 2.0% Mn, 0.06% or less P, 0.005% or less S, 0.1% or less Al, 0.006% or less N, 0.02 to 0.10% Ti, 0.05 to 0.6% Mo by weight percentage, and the balance being Fe, wherein fine precipitates with a grain size of smaller than 10 nm are dispersed in a matrix of ferrite structure single phase at a number per unit volume of 5×104/&mgr;m3 or higher. This steel sheet, which has tensile strength of not lower than 550 MPa, high elongation and excellent stretch flangeability, is suitable for intricately shaped automotive chassis parts such as a suspension arm.

Abstract: The present invention relates to a high strength hot rolled steel sheet containing 0.15% or less C, 0.02 to 0.35% Ti, and 0.05 to 0.7% Mo by weight percentage and consisting essentially of a matrix of ferrite structure single phase and fine precipitates with a grain size of smaller than 10 nm dispersed in the matrix, for example, a high strength hot rolled steel sheet which consists essentially of 0.06% or less C, 0.5% or less Si, 0.5 to 2.0% Mn, 0.06% or less P, 0.005% or less S, 0.1% or less Al, 0.006% or less N, 0.02 to 0.10% Ti, 0.05 to 0.6% Mo by weight percentage, and the balance being Fe, wherein fine precipitates with a grain size of smaller than 10 nm are dispersed in a matrix of ferrite structure single phase at a number per unit volume of 5×104/&mgr;m3 or higher. This steel sheet, which has tensile strength of not lower than 550 MPa, high elongation and excellent stretch flangeability, is suitable for intricately shaped automotive chassis parts such as a suspension arm.

Abstract: A powder magnetic core mainly comprises a soft magnetic powder which contains: 0.5 to 15% by mass of Si; 10% by mass or less of Al; and the balance of Fe and unavoidable impurities. The powder has an apparent density/true density falling within in a range of 0.4 to 0.55, and a volume percentage of the soft magnetic powder is 80% by volume or more. An initial permeability of the core at 100 kHz is 125 or more.

Abstract: The present invention relates to a high strength hot rolled steel sheet containing 0.15% or less C, 0.02 to 0.35% Ti, and 0.05 to 0.7% Mo by weight percentage and consisting essentially of a matrix of ferrite structure single phase and fine precipitates with a grain size of smaller than 10 nm dispersed in the matrix, for example, a high strength hot rolled steel sheet which consists essentially of 0.06% or less C, 0.5% or less Si, 0.5 to 2.0% Mn, 0.06% or less P, 0.005% or less S, 0.1% or less Al, 0.006% or less N, 0.02 to 0.10% Ti, 0.05 to 0.6% Mo by weight percentage, and the balance being Fe, wherein fine precipitates with a grain size of smaller than 10 nm are dispersed in a matrix of ferrite structure single phase at a number per unit volume of 5×104/&mgr;m3 or higher. This steel sheet, which has tensile strength of not lower than 550 MPa, high elongation and excellent stretch flangeability, is suitable for intricately shaped automotive chassis parts such as a suspension arm.

Abstract: There is disclosed a powder magnetic core in which a permeability does not easily drop even when an applied magnetic field intensifies, comprising: a bulk body containing a main component of a powder of an Fe-base alloy having a soft magnetic property, and the balance substantially including a heat-treated insulation binder and a void.

Abstract: A powder magnetic core mainly comprises a soft magnetic powder which contains: 0.5 to 15% by mass of Si; 10% by mass or less of Al; and the balance of Fe and unavoidable impurities. The powder has an apparent density/true density falling within in a range of 0.4 to 0.55, and a volume percentage of the soft magnetic powder is 80% by volume or more. An initial permeability of the core at 100 kHz is 125 or more.

Abstract: A magnetic mixture comprising at least two kinds of powders which are uniformly mixed with each other. Each powder exhibits a significant magnetic property when its constituent elements have a predetermined composition ratio. Magnetic properties of each powder are retained in the magnetic mixture which exhibits, as a whole, a soft magnetic property. The magnetic mixture is useful as a raw material for a powder magnetic core.

Abstract: A powder magnetic core is made from powder containing Fe-based soft magnetic powder as a major component. Provided that an initial permeability of the core is &mgr;0 and that a permeability of the core observed when a magnetic field of 24 kA/m is applied to the core is &mgr;, &mgr;0 and &mgr; fulfill the relationship &mgr;/&mgr;0≧0.5. Specifically, the powder magnetic core is made from 60 to 75 volume % of soft magnetic powder having an aspect ratio (L2/L1) of 1 to 1.5 and the balance containing an insulating binder as a major component, and the content of the insulating binder is 5 to 20 parts by weight with respect to 100 parts by weight of the soft magnetic powder. The powder magnetic core shows a small reduction in the permeability even when the strength of a magnetic field applied thereto is increased.

Abstract: A powder magnetic core is made from powder containing Fe-based soft magnetic powder as a major component. Provided that an initial permeability of the core is &mgr;0 and that a permeability of the core observed when a magnetic field of 24 kA/m is applied to the core is &mgr;, &mgr;0 and &mgr; fulfill the relationship &mgr;/&mgr;0 0.5. Specifically, the powder magnetic core is made from 60 to 75 volume % of soft magnetic powder having an aspect ratio (L2/L2) of 1 to 1.5 and the balance containing an insulating binder as a major component, and the content of the insulating binder is 5 to 20 parts by weight with respect to 100 parts by weight of the soft magnetic powder. The powder magnetic core shows a small reduction in the permeability even when the strength of a magnetic field applied thereto is increased.

Abstract: Formulations used for production of wooden material or wood composites containing monophenolic compounds are described.

Abstract: An INVAR.RTM. or iron nickel alloy or iron nickel cobalt alloy wire has an area ratio of carbide existing at the grain boundaries of the wire in the finished wire of at most 4%, or an average grain size in the transverse direction within a range of 1 to 5 .mu.m. Such a wire has a superior twisting property.

Abstract: A speaker apparatus has a damper for supporting vibrating elements including a vibrating diaphragm. The damper is formed by injecting a predetermined amount of a resin material into a metal mold of an injection molding equipment.

Abstract: A cylindrical frame is mounted in a cabinet and a magnetic circuit is provided at an end of the frame. A diaphragm having a peripheral free edge is connected to a coil bobbin and a cylindrical ring is secured to the free end edge and disposed in a cylindrical supporting portion of the frame. An annular sealing member is secured to the cylindrical ring so that an outside peripheral wall thereof is slidably contacted with an inside wall of the cylindrical supporting portion of the frame.