Abstract: A set of building blocks are provided for building up to a unique structure using substantially simply designed blocks. The building blocks according to the present invention are classified into a first piece P1 and a second piece P2. The first piece P1 has a groove G provided therein of which two surfaces Ga, Ga are tilted symmetrically from the reference plane H orthogonal to a flat plane S or a plane S? including the flat plane S. The bottom Gb of the groove G extends parallel with the flat plane S. The second piece P2 has at least a corner edge thereof arranged at a right angle, when viewed in the lengthwise direction of the groove G, to engage with the groove G with its one side Af coming substantially in face contact with the grooves G. In particular, the width WS of the flat plane S is greater than the width WG of the groove G along the direction perpendicular to the reference plane H while the flat plane S and the groove G are coincided with each other at the center of the width WS, WG.

Abstract: An object of the present invention is to improve the compatibility of the resin composition comprising the PAI resin and the PAS resin so as to provide a resin composition which is excellent in flowability when molten, strength, tenacity and heat resistance. A resin composition comprising: (1) 5 to 60 parts by weight of aromatic polyamide imide resin (A) having a weight average molecular weight (Mw) of 1,000 to 100,000 and having an amino group in an amount of 0.00002 to 0.002 mol/g in a molecule, (2) 95 to 40 parts by weight of polyarylene sulfide resin (B), and (3) 0.01 to 10 parts by weight of episulfide compound (C) based on 100 parts by weight of the total of (A) and (B).

Abstract: The adamantane derivatives of the present invention which are represented by the general formula (1): wherein X is a hydrogen atom, alkyl, halogen-containing alkyl, halogen, or hydroxyl-, halogen-, nitrile- or ether-containing hydrocarbyl, and a plurality of X groups, if any, may be the same or different from each other; n1 is an integer of 1 to 14; R1 to R4 may be the same or different from each other and are independently alkyl or halogen-containing alkyl; and Y1 and Y2 may be the same or different from each other and are independently a hydrogen atom or a group represented by the general formula (2): wherein R5 to R7 may be the same or different from each other and are independently a hydrogen atom, alkyl, halogen or halogen-containing alkyl, are excellent in optical properties, heat resistance and acid-dissociating property, and useful as crosslinking-type resins, optical materials such as optical fibers, light wave guides, optical disk substrates and photoresists as well as raw materials thereof

Abstract: A pop-up flash of a camera includes a slidable member mounted to a camera body, the slidable member being movable between a retreated position and an advanced position in front of the retreated position; and a flash unit supported by the slidable member to be movable between a retracted position, in which the flash unit is accommodated in the camera body, and a fully-lifted position in which the flash unit projects from the camera body. The flash unit moves from the retracted position to the fully-lifted position when the slidable member moves from the retreated position to the advanced position.

Abstract: A stator for a motor includes a stator core, an insulator, and coils. The stator core includes an annular portion and teeth, which extend radially from the annular portion. The stator core is divided into core segments in the circumferential direction. Each core segment has an arcuate portion and one of the teeth, which extends from the arcuate portion. The insulator insulates each coil wound around one of the teeth from the stator core. The insulator includes coupling portions at positions corresponding to the circumferential ends of the arcuate portions. Each coupling portion couples the adjacent core segments to be rotatable relative to each other. The insulator facilitates manufacture of the stator.

Abstract: A stator for a motor includes a stator core, an insulator, and coils. The stator core includes an annular portion and teeth, which extend radially from the annular portion. The stator core is divided into core segments in the circumferential direction. Each core segment has an arcuate portion and one of the teeth, which extends from the arcuate portion. The insulator insulates each coil wound around one of the teeth from the stator core. The insulator includes coupling portions at positions corresponding to the circumferential ends of the arcuate portions. Each coupling portion couples the adjacent core segments to be rotatable relative to each other. The insulator facilitates manufacture of the stator.

Abstract: A pop-up flash of a camera includes a flash unit movable between a retracted position, in which the flash unit is accommodated in a camera body, and a fully-lifted position, in which the flash unit projects from the camera body; a biasing device which biases the flash unit toward the fully-lifted position; and a speed-change mechanism for changing a speed of movement of the flash unit, which is driven by the biasing force of the biasing device, during movement of the flash unit in a projecting direction from the retracted position to the fully-lifted position.

Abstract: The adamantane derivatives of the present invention which are represented by the general formula (1): wherein X is a hydrogen atom, alkyl, halogen-containing alkyl, halogen, or hydroxyl-, halogen-, nitrile- or ether-containing hydrocarbyl, and a plurality of X groups, if any, may be the same or different from each other; n1 is an integer of 1 to 14; R1 to R4 may be the same or different from each other and are independently alkyl or halogen-containing alkyl; and Y1 and Y2 may be the same or different from each other and are independently a hydrogen atom or a group represented by the general formula (2): wherein R5 to R7 may be the same or different from each other and are independently a hydrogen atom, alkyl, halogen or halogen-containing alkyl, are excellent in optical properties, heat resistance and acid-dissociating property, and useful as crosslinking-type resins, optical materials such as optical fibers, light wave guides, optical disk substrates and photoresists as well as raw materials thereof

Abstract: An object of the present invention is to improve the compatibility of the resin composition comprising the PAI resin and the PAS resin so as to provide a resin composition which is excellent in flowability when molten, strength, tenacity and heat resistance.

Abstract: A stator for a motor includes a stator core, an insulator, and coils. The stator core includes an annular portion and teeth, which extend radially from the annular portion. The stator core is divided into core segments in the circumferential direction. Each core segment has an arcuate portion and one of the teeth, which extends from the arcuate portion. The insulator insulates each coil wound around one of the teeth from the stator core. The insulator includes coupling portions at positions corresponding to the circumferential ends of the arcuate portions. Each coupling portion couples the adjacent core segments to be rotatable relative to each other. The insulator facilitates manufacture of the stator.

Abstract: A hybrid-driven device includes an electric power storage device and a fuel cell. The hybrid-driven device can be a vehicle such as a motorcycle, scooter, watercraft, an automobile, and the like. The electric power storage device, such as a battery, and a fuel cell, can be formed into independent unitary modules, each having a controller. Each of the modules can be removably mounted as a unit to the vehicle. Additionally, each independent module can include sensors for detecting a state of the respective module. Each module can also include memory for storing data gathered by the sensors. The vehicle can also include a controller which controls the electrical power storage device and the fuel cell to provide smooth operation of the device.

Abstract: There are disclosed insulated ultrafine powder comprising electroconductive ultrafine powder which is in the form of sphere, spheroid or acicular each having a minor axis in the range of 1 to 100 nm and an insulating film applied thereto; a process for producing the same which is capable of covering the surfaces of the insulated ultrafine powder with the insulating film having a thickness in the range of 0.3 to 100 nm without causing any clearance or vacancy; and a resin composite material which uses the same. A high dielectric constant of the material is assured by adding a small amount of insulated ultrafine powder wherein an insulating film is applied to the electroconductive ultrafine powder, while maintaining the processability and moldability that are the characteristics inherent in a resin material.

Abstract: Disclosed is a polymer material of low relative permittivity obtained through copolymerization of a monomer composition that contains, as monomers, a fumaric diester and an epoxy group-having (meth)acrylate. The polymer material bonds or adheres well to metal conductor layers, and, after crosslinked, it is patternable. In addition, it has good electric properties of low relative permittivity, low dielectric loss tangent and good electric insulation, and has good heat resistance.

Abstract: An electric vehicle comprises a first power source and a second power source. The first power source can be used to supply a substantially constant base power level and the second power source can be used to supply a variable power level such that a variable load demand can be filled by combining the base power level and the variable power level. The first source can be used to supply power to the second source when the second source is operating at a decreased charge or power level. The base power level can be varied based upon the remaining charge or power level contained within the second source. A number of control methods for operating the power supply of the electric vehicle are disclosed.

Abstract: The invention provides a heat-resistant, low-dielectric polymeric material that is preferably a copolymer in which a non-polar &agr;-olefin base polymer segment and a vinyl aromatic copolymer segment are chemically combined with each other, and that is a thermoplastic resin showing a multi-phase structure in which a dispersion phase formed by one segment is finely dispersed in a continuous phase formed by another segment. It is thus possible to achieve a polymeric material that is excellent in heat resistance, has high strength, and has a low dielectric constant and a reduced dielectric loss, and so is suitable for an electrical insulating material for high-frequency purposes.

Abstract: A high frequency band pass filter using a high frequency multilayered substrate is provided that does not experience interlayer shift during lamination, requires only a small number of printings, does not shrink during firing, avoids distortion in the shape, thickness and spacing of substrate internal patterns and in the location of the internal pattern of the discrete devices after dicing, is free from burr occurrence, is excellent in dicing efficiency during fabrication, is superior in product yield and cost, and has enhanced performance.

Abstract: In a motorized vehicle power system 403 provided with a rechargeable battery 400, a battery control unit 401 for executing control of battery conditions including the remaining capacity of the rechargeable battery 400 and a charging unit 402 for charging the rechargeable battery 400, the charging unit 402 is provided with a discharging device 404 for executing refreshing discharge of the rechargeable battery 400 and a discharge control device 405 for controlling the refreshing discharge by the charging device 404 on the basis of a refreshing discharge requirement signal sent from the battery control unit 401.

Abstract: Disclosed is a polymer material of low relative permittivity obtained through copolymerization of a monomer composition that contains, as monomers, a fumaric diester and an epoxy group-having (meth)acrylate. The polymer material bonds or adheres well to metal conductor layers, and, after crosslinked, it is patternable. In addition, it has good electric properties of low relative permittivity, low dielectric loss tangent and good electric insulation, and has good heat resistance.

Abstract: The invention has for its object to provide a composite dielectric material having any desired dielectric constant selectable from a relatively wide range in a high-frequency band and a low dielectric loss tangent, and a film, substrate, electronic part or molded or otherwise formed article using the same. To accomplish this object, there is provided a composite dielectric material composition comprising a heat-resistant, low-dielectric polymeric material that is a resin composition comprising one or two or more resins having a weight-average absolute molecular weight of at least 1,000, wherein the sum of carbon atoms and hydrogen atoms in said composition is at least 99%, and some or all resin molecules have a chemical bond therebetween, and a filler. A film, substrate, electronic part or molded or otherwise formed article is obtained using this composition.

Abstract: A ferromagnetic powder composition for dust cores contains a ferromagnetic metal powder and 0.1-15% by volume based on the powder of titania sol and/or zirconia sol. The composition is pressure molded and desirably annealed into a dust core which exhibits a high magnetic flux density, low coercivity, low loss and high mechanical strength.