Abstract: A binder is mixed to alumina powder with a purity of 99.5% or more (step S11), the mixture is granulated (step S12), resultant granule powder is formed with a die (step S13), and a formed compact is sintered in a hot-pressing manner (step S14).

Abstract: An electrostatic chuck heater including a base which is formed by: applying conductive paste containing a binder to upper and lower surfaces of an alumina sintered body to print an electrostatic electrode and heater electrode; calcining the alumina sintered body; arranging alumina powder above the electrostatic electrode and alumina powder below the heater electrode; and pressing the alumina powder and alumina sintered body in the above state for pressure sintering. The diffusion area ratio of the conductive material near the electrostatic electrode in the dielectric layer is set not more.

Abstract: Silica having a large pore volume and specific surface area, controlled pore properties and also excellent hydrothermal resistance is provided. The silica has the following properties: (a) a pore volume of the silica is larger than 1.6 ml/g and is 3.0 ml/g or less; (b) a specific surface area of the silica is between 100 and 1000 m2/g; (c) a mode pore diameter (Dmax) of the silica is 5 nm or more; (d) a value of Q4/Q3 in a solid-state Si nuclear magnetic resonance (hereinafter called solid-state Si NMR) spectrum of the silica is 1.2 or more; and (e) the silica is amorphous. The silica can be suitably used in fields which require particularly large pore volume and specific surface area, excellent hydrothermal resistance moreover controlled pore properties, and also the fact that physical properties scarcely change over a long period of time.

Abstract: A method of manufacturing an electrical-resistance heating element includes forming sintered ceramics or calcined ceramics, forming an electrode on the sintered ceramics or the calcined ceramics, and forming a ceramic base material having mainly a high melting point metal on the electrode embedded therein, thereby forming a heating element with built-in electrode.

Abstract: An electrostatic chuck includes: a base body formed of an aluminum nitride sintered body containing samarium; and an electrode embedded in the base body and containing molybdenum, wherein a portion of the base body from the electrode to a base body surface is formed into a dielectric layer, and the base body surface is formed into a substrate mounting surface on which a processing target is sucked and mounted, and a content of samarium-aluminum oxide phases in the base body in a vicinity of the electrode is set at 2.5% or less in terms of an area ratio.

Abstract: An alumina sintered body comprises an alumina substrate having a first main surface and a second main surface opposing each other, an embedded film electrode made of a metal and embedded in the alumina substrate at a depth HD of 0.4 mm or less from a first main surface SF1, and an embedded terminal formed of a metal, embedded in the alumina substrate nearer a second main surface SF2 side than the embedded electrode. The embedded terminal is in contact with the embedded electrode and a film thickness HE of the embedded electrode is 25 ?m or less.

Abstract: A bonding member is provided, including, a ceramic member having a concave portion, a metal member having a convex portion corresponding to the concave portion of the ceramic member. A first bonding material joins a bottom portion of the concave portion of the ceramic member and a tip portion of the convex portion of the metal member. The first bonding material has a porous structure, including particles and a brazing filler metal, and covers a corner between tip and side portions of the metal member. A second bonding material including a brazing filler metal joins the side portion of the concave portion of the ceramic member and the side portion of the convex portion of the metal member.

Abstract: An air cleaner of the present invention, wherein an inlet port 4 and an outlet port 5 are formed and provided with air blower means 1 therein, an antiallergenic filter having an aromatic hydroxyl compound is installed in the air flow passage of the air blower means 1 in a main body 2, and the inlet port 4 formed in the main body 2 is provided at the lower part of the front panel, such that the suction air flow may be formed along the floor plane 3, whereby pollen and dead mites, and the like, which are present in a vicinity of a floor plane 3 can be efficiently sucked to inactivate allergic activity. A treating solution of the present invention is characterized in that it is prepared by dissolving and/or dispersing a water-soluble material and a water-insoluble material in a mixed solvent of water and a cellosolve and/or a carbitol. A method of manufacturing functional filter according to the present invention is characterized in that the treating solution above is adhesion fixed to the filter base material.

Abstract: A driver circuit 10 comprising a driver unit 30 and a driver control unit 20 for controlling a driver by comparing present data of an input signal with previous data, wherein the driver unit 30 includes a plurality of parallel drivers, and the driver control unit 20 compares the present data of the input signal with data one cycle back and, if they are not identical, causes the plurality of parallel drivers to operate, thereby increasing the driving power of the driver. The driver control unit 20 further compares the present data with data two cycles back and, if they are identical, can reduce the factor by which to increase the driving power by not causing a selected one or ones of the plurality of parallel drivers to operate.

Abstract: A drive power transmission control device is provided with an electromagnetic drive power transmission device and an ECU for controlling the application of electric current to an electromagnetic coil of the drive power transmission device. The ECU is bodily provided on a casing of the electromagnetic type drive power transmission device through at least one support member 50. The electronic control device is fixedly supported on an outer wall of the casing with a space between the electronic control device and the casing, such that cooling air can flow between the outer wall of the casing and the electronic control device.

Abstract: The electrically-powered steering apparatus obtains a steering torque and a steering angle within an allowable input range of those inputted into a first resolver and a second resolver based on a real zero point ? and further, a steering torque and a steering angle out of the allowable input range of those inputted to the first resolver and the second resolver based on (+) virtual zero point ? and (?) virtual zero point ?, which are set to a different value from the real zero point ?. Consequently, of the steering torques and steering angles inputted to the first resolver and the second resolver, the steering torque and steering angle out of the allowable input range impossible to obtain by the real zero point ? can be obtained based on the (+) virtual zero point ? and the (?) virtual zero point ?.

Abstract: A decorative film using no appreciable amount, or no amount, of polyvinyl chloride. In a decorative film comprising a substrate and an adhesive layer formed on one surface of the substrate, the substrate is formed from an ethylene-(meth)acrylic acid copolymer.

Abstract: To provide a film having high tensile strength and elongation characteristics. A methacrylic film formed of (A) a carboxyl group-containing (meth)acrylic polymer having a glass transition temperature (Tg) of 0° C. or higher and a weight-average molecular weight of 10,000 or more obtained by copolymerizing a composition containing a monoethylenically unsaturated monomer as a main component and an unsaturated monomer having a carboxyl group, and (B) an amino group-containing (meth)acrylic polymer having a glass transition temperature (Tg) of 0° C. or lower and a weight-average molecular weight of 10,000 or more obtained by copolymerizing a composition containing a monoethylenically unsaturated monomer as a main component and an unsaturated monomer having an amino group, wherein a mixing ratio of the component (A) to the component (B) is from 10:90 to 90:10 in terms of a weight ratio.

Abstract: A binder is mixed to alumina powder with a purity of 99.5% or more (step S11), the mixture is granulated (step S12), resultant granule powder is formed with a die (step S13), and a formed compact is sintered in a hot-pressing manner (step S14).

Abstract: Silica with a large pore volume, a large specific surface area, a narrow pore distribution, low contents of unwanted metal impurities, and excellent physical properties such as high heat-resistance and water-resistance is provided. The silica has a mode pore diameter (Dmax) of 20 nm or less, and a solid-state Si nuclear magnetic resonance (hereinafter called solid-state Si NMR) spectrum of the silica includes a chemical shift (? ppm) of Q4 peak meeting the following inequality (I). ?0.0705×(Dmax)?110.36>???(I) The silica with such properties can be suitably used in fields of which particularly excellent heat resistance and water resistance are required, and moreover controlled pore properties, and the fact that physical properties scarcely change over a long period of time are required among the above-mentioned applications.

Abstract: Subjects for the invention are to obtain a quartz powder having a high purity and high quality and a process for producing the same and to obtain a glass molding formed by melting and molding the powder and extremely reduced in bubble inclusion. The invention provides a quartz powder, preferably a synthetic quartz powder obtained by the sol-gel method, which, upon heating from room temperature to 1,700° C., generates gases in which the amount of CO is 300 nl/g or smaller and the amount of CO2 is 30 nl/g or smaller.

Abstract: An electrostatic chuck includes a base of a sintered body containing alumina, an electrode as a power-supplied member embedded in the base and supplied with electric power, a bonding member embedded in the base and bonded to the electrode, in which a difference in coefficient of thermal expansion from the sintered body is 2×10?6/K or less, and a melting point is higher than baking temperature of the sintered body, and a terminal bonded to the electrode through the bonding member.

Abstract: A controller for a brushless motor that suppresses torque reduction resulting from the influence of motor inductance and suppresses the generation of invalid current. A phase advancing angle calculator calculates a delay angle of phases of phase currents with respect to the phases of the phase voltage command and a phase advancing angle corresponding to the delay angle based on the function of the angular velocity and the motor inductance (and armature winding resistance) of the brushless motor. An adder adds the phase advancing angle to the rotation angle provided from the rotation angle calculator to generate the corrected rotation angle. The adder further provides the corrected rotation angle to a two-phase/three-phase converter.

Abstract: Mesostructured and microporous to mesoporous organofunctionalized silica compositions are described. The compositions incorporate the organofunctional group L as part of a LSiO3 unit in the framework of the compositions. In addition the compositions incorporate the organofunctional group R as part of a O3Si—R—siO3 unit in the framework of the compositions. The compositions are useful as molecular sieves, supports for catalysts and numerous other applications requiring an organo group on surfaces of a silica.

Abstract: Subjects for the invention are to obtain a quartz powder having a high purity and high quality and a process for producing the same and to obtain a glass molding formed by melting and molding the powder and extremely reduced in bubble inclusion. The invention provides a quartz powder, preferably a synthetic quartz powder obtained by the sol-gel method, which, upon heating from room temperature to 1,700° C., generates gases in which the amount of CO is 300 nl/g or smaller and the amount of CO2 is 30 nl/g or smaller.