Abstract: A flat tire (2) according to the present invention includes a load support layer (12) positioned on an inside in an axial direction of a sidewall (6). The tire (2) further includes a belt (14) constituted by an inner belt ply (40) and an outer belt ply (42), and a full band (16) substantially covering a whole surface on an outside in a radial direction of the belt (14). The full band (16) is formed by a cord and a topping rubber. When a tensile load of 50N is applied, the cord has an elongation of 3.0% or less. The tire (2) may include a center band which has a smaller width in the axial direction than the width of the full band (16) and is laminated on the full band (16) in the vicinity of an equator (CL).

Abstract: An electric power tool includes a housing, an electric power, a trigger, a trigger-limitation device and a switching device. The housing receives the electric power unit having an output shaft. The trigger is slidably mounted on the housing so as to control operation of the electric power unit. The trigger-limitation device is mounted on the housing so as to be movable between a limited position and an unlimited position. The trigger-limitation device comes into contact with the trigger to limit a stroke of the trigger, when being kept in the limited position, and not coming into contact with the trigger to impose no limitation to the stroke of the trigger, when being kept in the unlimited position. The switching device is provided on the housing in a different place from the trigger-limitation device. The switching device operates the trigger-limitation device to move between the limited position and the unlimited position.

Abstract: This invention relates to a process for preparing high-purity aromatic oligomers by effectively separating an organic layer containing aromatic oligomers or the reaction products of a polycyclic aromatic compound with formaldehyde from an aqueous layer containing an acid catalyst in a simplified manner, hitherto regarded difficult to accomplish, and obtaining high-purity aromatic oligomers from the organic layer containing a reduced amount of impurities. In separating the aqueous layer containing the acid catalyst and the organic layer containing the oligomers from the reaction mixture formed by the condensation of a polycyclic aromatic compound and formaldehyde, the emulsion phase is broken by adding a nonionic or cationic surfactant in an effective amount and an alkali in an amount sufficient to neutralize 1–70% of the acid in the acid catalyst, the organic and aqueous layers are separated and the aromatic oligomers are recovered from the organic layer.

Abstract: A micro system capable of setting an appropriate amount of stimulation being applied in order to control liquid flow in a channel. The micro system comprises micro-heaters (5b, 5c) for applying stimulation to liquid flowing through liquid channels (2b, 2c) formed in a plate (1) and controlling liquid flow by the stimulation from the micro-heaters (5b, 5c), and a means for electrically controlling the amount of stimulation being applied to the liquid from the micro-heaters (5b, 5c). An appropriate amount of stimulation can be set by electrically controlling the amount of stimulation being applied to the liquid from the micro-heaters (5b, 5c) through the control means.

Abstract: An electric power tool includes a housing, an inner case and a hammer case. The housing receiving a motor has a pair of half portions. The inner case receives a planetary gear train. An input side of the planetary gear train is connected to a drive shaft of the motor. The housing receives the inner case. The hammer case receives a hammer unit. An input side of the hammer unit is connected to an output shaft of the planetary gear train to convert rotation of the output shaft of the planetary gear train into an intermittent striking power outputted from an output shaft of the hammer unit. The hammer case receives the inner case having recesses. The hammer case has elongated holes aligned with the recesses. Each half portion has bosses engaging with the elongated holes of the hammer case, which are aligned with the recesses of the inner case.

Abstract: An electric power tool includes a housing, an electric power, a trigger, a trigger-limitation device and a switching device. The housing receives the electric power unit having an output shaft. The trigger is slidably mounted on the housing so as to control operation of the electric power unit. The trigger-limitation device is mounted on the housing so as to be movable between a limited position and an unlimited position. The trigger-limitation device comes into contact with the trigger to limit a stroke of the trigger, when being kept in the limited position, and not coming into contact with the trigger to impose no limitation to the stroke of the trigger, when being kept in the unlimited position. The switching device is provided on the housing in a different place from the trigger-limitation device. The switching device operates the trigger-limitation device to move between the limited position and the unlimited position.

Abstract: This invention relates to a process for preparing high-purity aromatic oligomers by effectively separating an organic layer containing aromatic oligomers or the reaction products of a polycyclic aromatic compound with formaldehyde from an aqueous layer containing an acid catalyst in a simplified manner, hitherto regarded difficult to accomplish, and obtaining high-purity aromatic oligomers from the organic layer containing a reduced amount of impurities. In separating the aqueous layer containing the acid catalyst and the organic layer containing the oligomers from the reaction mixture formed by the condensation of a polycyclic aromatic compound and formaldehyde, the emulsion phase is broken by adding a nonionic or cationic surfactant in an effective amount and an alkali in an amount sufficient to neutralize 1-70% of the acid in the acid catalyst, the organic and aqueous layers are separated and the aromatic oligomers are recovered from the organic layer.

Abstract: A pneumatic tire comprises a bead core and a rubber bead apex provided in each bead portion, and a carcass comprising a carcass ply turned up around the bead core from the inside to the outside of the tire to form a pair of turned up portions and a main portion therebetween. The bead apex is made of hard rubber disposed between the main portion and turned up portion and extending radially outwards from the bead core. The length (LA) of the bead apex is in a range of from 0.1 to 0.25 times the tire section height (H). A reinforcing cord layer is disposed along the axially inside of the turned up portion. The radially outer end (FU) of the reinforcing cord layer is positioned radially outside the radially outer end (BU) of the bead apex but radially inside the maximum tire section width point (M). The radially inner end (FD) of the reinforcing cord layer is positioned radially outside the radially outer end of the bead core but radially inside the radially outer end (BU) of the bead apex.

Abstract: Inside a tread portion and outside a belt layer along the radius direction thereof is formed a belt layer comprising a band ply formed by winding spirally a tape- and belt-form ply wherein one ore plural band cords are stretched and arranged to be embedded in a topping rubber. In this band ply, the elongation resistance value K (unit: N° cord number/cm) specified by the following equation is set within the range of 99 to 700 when the sectional area of the band cord or each of the band cords is represented by S (unit: mm2), the modulus thereof when the elongation thereof is 2% is represented by M (unit: N/mm2), the band cord arrangement density per cm of the band ply is represented by D (unit: cord number/cm).

Abstract: A vehicle comprises Anti Lock Brake System (ABS) and front tires and rear tires which are capable of displaying maximum braking effect when the ABS is in operation, each of the tires comprises a plurality of tread elements divided by tread grooves, and the tread pattern rigidity Pr of the rear tire is more than the tread pattern rigidity Pf of the front tire, wherein the tread pattern rigidity P (Pr, Pf) is defined as a quotient of the total of circumferential rigidity of all the tread elements existing in a ground contacting region of the tire which is divided by the area of the ground contacting region, and the circumferential rigidity K of each tread element is defined as a quotient of a tangential force F in kgf received at the ground contacting region which is divided by a displacement y in mm at the ground contacting region.

Abstract: A tool holder, for mounting a bit formed with a groove onto a power tool, includes a tool-holding tool, an engagement member, and a resilient member. The tool-holding tube defines a bit insertion hole that extends in an axial direction. The tool-holding tube is formed with an elongated hole that is in connection with the bit insertion hole and that extends in the axial direction. The engagement member is disposed in the elongated hole and partially protrudes into the bit insertion hole. The engagement member is movable, by abutment with and pressing force from the bit being inserted into the bit insertion hole, in the axial direction and, when located at a retraction position in the axial direction, also outward in a radial direction of the tool-holding tube. The resilient member is disposed to an outer periphery of the tool-holding tube at the retraction position.

Abstract: A pneumatic tire comprises a breaker disposed radially outside a carcass crown portion, and a band disposed radially outside of the breaker and comprising a full-width band ply extending over the substantially overall width of the breaker, wherein a cord or cords of said full-width band ply existing in a tread crown region satisfy the following conditions: T>0.8; 0≦K+6.67T−21.7; 0≦45−10T−K; 0≦106.8−57.5T−K; and 7≦E≦13, wherein the symbol “K” is an stretch-resistance index (N) of a cord which is defined as the product of the sectional area S in sq.mm and 2% modulus M in N/sq.mm of the cord divided by 100, the symbol “T” is an stretch in % of the cord in the tire being in its natural state without being mounted on a wheel rim, and the symbol “E” is a cord count per 1 cm width of the full-width band ply.

Abstract: A pneumatic tire comprises: a carcass extending between bead portions through a tread portion and sidewall portions; a breaker disposed radially outside a crown portion of the carcass; a pair of axially spaced high modulus edge bands disposed radially outward of edge portions of the breaker and each made of one or more high modulus cords having a sectional area SH and a 2% modulus MH and wound substantially parallel to the tire circumferential direction at a cord count DH; a low modulus middle band disposed radial outward of the breaker between the high modulus edge bands; and an elongation resistance index PH of each of the high modulus edge bands, which is defined as the product of the 2% modulus MH in N/sq.mm, the sectional area SH in sq.mm and the cord count DH per 1 cm width divided by 100, being in a range of 160 to 700.

Abstract: Injection efficiency is greatly improved by chemically bonding an organic light emission molecule to an electrode, so as to realize a high efficiency light emission type of flat panel display and a high efficiency laser device, and realize a light emission type of flat panel display and a laser device which have higher performance than conventional organic light emission molecular devices.

Abstract: A superfine electronic device is disclosed, which is constructed by atomic fine lines having a structure in which a plurality of atoms are arranged on one or a plurality of straight lines, in a ring shape or on curves with a size of atomic level, and which includes elements for doping electrons and holes. Using these atomic fine lines, it is possible to integrate semiconductor elements utilizing pn junctions at an atomic level with a high density. A groove having a sufficiently small size is formed in an insulating film disposed on a substrate. Then, atoms or molecules are supplied on the substrate and in the groove, which and are heated to a temperature sufficiently high for moving the atoms or molecules during or after the supply thereof to form a quantum fine line at edge portions of the groove.

Abstract: A tool holder, for mounting a bit formed with a groove onto a power tool, includes a tool-holding tool, an engagement member, and a resilient member. The tool-holding tube defines a bit insertion hole that extends in an axial direction. The tool-holding tube is formed with an elongated hole that is in connection with the bit insertion hole and that extends in the axial direction. The engagement member is disposed in the elongated hole and partially protrudes into the bit insertion hole. The engagement member is movable, by abutment with and pressing force from the bit being inserted into the bit insertion hole, in the axial direction and, when located at a retraction position in the axial direction, also outward in a radial direction of the tool-holding tube. The resilient member is disposed to an outer periphery of the tool-holding tube at the retraction position.

Abstract: A ferromagnetic material can be formed in a very small size on the order of an atomic size and is capable of being stably magnetized. The ferromagnetic material comprises basic unit structures each consisting of a first atom (11), a second atom (12) of the same kind as the first atom (11), and a third atom (or atomic group) (13) of the same kind as the first atom (11) or of a kind different from that of the first atom (11). In each of the basic unit structures, the atoms are arranged on a surface of a substrate so that a chemical bond (14) is formed between the first atom or molecule and the third atom or molecule, a chemical bond (14) is formed between the second atom or molecule and the third atom or molecule, and a chemical bond or an electron path (15) not passing the third atom is formed between the first and the second atom or molecule, wherein said third atoms or molecules consist of As atoms.

Abstract: To provide an electron exposure apparatus capable of providing high resolution and performing electron exposure at high speed, integrated tips are used, only the tips provided at ends control distances between the tips and the surface of a wafer and the tips used for electron exposure follow the wafer according to deformations of cantilevers, which occur due to the Coulomb force resultant from a voltage applied to each tip.

Abstract: A pneumatic tire which comprises a breaker disposed radially outside a carcass crown portion and made of cords laid at an angle of from 15 to 40 degrees with respect to the tire equator, and a band disposed radially outside of the breaker and comprising a full-width band ply extending over the substantially overall width of the breaker and made of at least one cord forming a small angle with respect to the tire equator, wherein a cord or cords of said full-width band ply existing in a tread crown region satisfy the following conditions: T>0.8; 0≦K+6.67T−21.7; 0≦45−10T−K; 0≦106.8−57.

Abstract: A multiplexing system for ISDN circuits. Multiplexers in the system include data terminals, voice interfaces having voice trunks, high speed digital circuits and ISDN circuits, together with a control channel interface which connects trunking circuits by controlling calls on the control channel. When an outgoing voice call originates, data information from data terminals voice is multiplexed with compressed information from a voice interface and transmitted to trunking circuits. When calls originate, the control channel controls calls and connects them with trunking circuits. When using ISDN circuits, after setting up a communication channel for the circuits, a CPU controls calls to multiplex ISDN circuits on the control channel. By this structure decreasing the multiplexing ratio due to voice multiplexing call control on ISDN circuits can be eliminated when linking multiplexers with communication channels having high speed digital circuits and ISDN circuits.