Abstract:
There is provided a near-field optical memory head for recording and/or reproducing information on a recording medium by utilizing near-field light which is a near-field optical memory head having a compact constitution and is suitable for mass production and array formation. According to the near-field optical memory head 11, in a planar substrate formed by penetrating at least one hole in a shape of an inverted pyramid such that a top portion thereof constitutes a very small aperture 4, a near-field light forming system for forming near-field light at a recording medium 1 and a near-field light detecting system for guiding propagating light 10 provided by interactively operating the formed near-field light with the very small aperture 4 to a light detecting element are integrated.
Abstract:
The gas sensor 1 has the following constituent features: (1) first processing space 9: a measurement gas is introduced thereinto via a first gas passage 11; (2) second processing space 10: a gas contained in the first processing space 9 is introduced thereinto via a second gas passage 13; (3) oxygen concentration detection element 4: adapted to measure the oxygen concentration of a gas contained in the first processing space 9; (4) oxygen pumping element 3: adapted to reduce the oxygen concentration of the measurement gas introduced into the first processing space 9 within a range such that water vapor contained in the measurement gas is not substantially decomposed; (5) oxidation catalyst section 16: adapted to accelerate combustion of a combustible gas component contained in a gas introduced into the second processing space 10; and (6) combustible gas component concentration detection element 5: a constant voltage is applied thereto, and element 5 has an output current which varies according to the amount of oxygen consumed by combustion of a combustible gas component contained in the gas introduced into the second processing space 10 from the first processing space, to thereby provide information regarding the concentration of the combustible gas component of the measurement gas based on the output current.
Abstract:
An optical waveguide device includes a substrate having a pair of opposed main planes, an optical waveguide formed on one of the opposed main planes, and an electrode portion, wherein a thickness of a portion of the substrate at at least a location where the electrode portion is formed is made smaller than at a remainder thereof.
Abstract:
One end of a connection wire is connected to a rear vehicle door which can be popped up by an urging force from a user. An apparatus for maintaining the position of the upwardly swinging rear door once it is opened at a desired angle includes a pulley for receiving the other end of the connection wire wound around it. A power spring urges the pulley in a connection wire-winding direction. A one-way clutch includes a rotatable outer ring with an input shaft at the center thereof. The input shaft is connected to the pulley. The input shaft is also connected to the outer ring through multiple rollers interposed between the outer ring and the input shaft so that the pulley is allowed to rotate in the connection wire-winding direction. In maintaining the upwardly swinging rear door at a desired angle once it is opened, a solenoid is energized to move a stopper into an engaging groove on the periphery of the outer ring. When the stopper engages the engaging groove, the rotation of the outer ring is restricted. In opening or closing the rear door, the solenoid is de-energized to disengage the stopper from the engaging groove. Consequently, the outer ring is allowed to rotate freely.
Abstract:
A method of manufacturing a semiconductor acceleration sensor comprises forming a strain sensing section on a surface of a semiconductor wafer, fixing the semiconductor wafer to a cooled fixing stage, cutting out a structural body having the strain sensing section from the semiconductor wafer, and connecting a support member to the structural body cut from the semiconductor wafer.
Abstract:
An automatic sliding door apparatus has a speed-change detecting element for detecting a change in the driving speed of a slide motor above a predetermined value as well as a pressure sensitive sensor disposed in a front end portion of a door panel, and the detecting of a foreign object is effected by the pressure sensitive sensor in regions other than a region in which the door panel slides at a fixed speed. Accordingly, the detecting of a foreign object is made possible in a region where the detecting of a foreign object is difficult in the detection of a change in speed by the speed-change detecting element. Moreover, since the detecting of a foreign object based on a change in speed is not effected in the regions other than the region in which the door panel slides at the fixed speed, it is possible to set to a higher level a reference value in speed change of the speed-change detecting element which determines that the door panel has received a reaction force of pressing from a foreign object in the region where the door panel moves at the fixed speed. The sensitivity can also be enhanced as a result.
Abstract:
A blast furnace coal is produced by rapidly heating a coal blend having 10 to 30% by weight of a non-slightly-caking coal having softening initiation temperature T with the balance including a caking coal having softening initiation temperature T.sub.0 (T.sub.0 .ltoreq.T +40.degree. C.) at a rate of 1.times.10.sup.3 to 1.times.10.sup.6 .degree. C./min to a temperature region from (T -60.degree. C.) to (T +10.degree. C.) wherein T represents the softening initiation temperature of the non-slightly-caking coal; or rapidly heating a non-slightly-caking coal having softening initiation temperature T and a caking coal having softening initiation temperature T.sub.1 separately at a rate of 1.times.10.sup.3 to 1.times.10.sup.6 .degree. C./min to a temperature region from (T -100.degree. C.) to (T +10.degree. C.), wherein T represents the softening initiation temperature of the non-slightly-caking coal, or a temperature region from (T.sub.1 -100.degree. C.) to (T.sub.1 +10.degree. C.), wherein T.sub.1 represents the softening initiation temperature of the caking coal, blending the heated non-slightly-caking coal with the heated caking coal to prepare a coal blend having 10 to 30% by weight of the non-slightly-caking coal with the balance including the caking coal; and charging the coal blend into a coke oven where the coal blend is carbonized.
Abstract:
A chip-type electronic part storage casing includes a storage portion for storing chip-type electronic parts in a loose condition; an opening formed in a lower surface of the storage portion for discharging the electronic parts; a shutter for opening and closing the opening; and a scatter prevention member within the storage portion for preventing the electronic parts from being scattered in the storage portion. Additionally, a supply cassette includes a hopper provided at a lower portion thereof and having a storage portion for storing chip-type electronic parts charged therein through an opening in an upper surface thereof, a central portion of the storage portion being recessed to provide an inclined surface for gathering the electronic parts; an interrupting plate mounted within the storage portion in an inclined manner, a gap for allowing the passage of the electronic parts therethrough formed between one end of said interrupting plate and the inclined surface of the storage portion; a discharge pipe for discharging the electronic parts, the discharge pipe extending from the exterior of the hopper through a lower surface of the hopper to the storage portion, and being connected to the storage portion; a slide pipe slidably fitted on an outer periphery of the discharge pipe; and engagement ribs formed on the upper surface of the storage portion. A chip-type electronic part storage casing is further connected to an upper portion of the hopper through the engagement ribs.
Abstract:
A fuel cell power generation system suitable for powering an electric vehicle and which provides high degree of safety when restarting power generation. The system is small in size, light in weight and low in cost of power generation. Three-way valves are provided in an exhaust-passage extending from a fuel-reforming unit and in pipes connecting the fuel-reforming unit, a CO removal unit and a fuel cell and as a gas exhaust valve on an anode side exhaust passage extending from the fuel cell. Accordingly, upon shut down, after exhausting residual reformed gas, combustion exhaust gas from a combustion unit associated with the fuel reforming unit is passed through the respective units for purging the residual reformed gas.
Abstract:
A controller for AGC recognizes a signal level broader than an AGC control output from an AGC circuit and also recognizes a signal level (a desired station signal level) in a narrow-band by an output from an S-meter. No interference, or the occurrence of 2-signal interference or inter modulation interference can be detected from a change ratio of the desired station signal at the time of the alteration of attenuation values of these two signal levels and an RF signal. In consequence, a proper regulation of the RF signal attenuation value can be carried out in accordance with the presence or absence of the interference and the kind of interference, whereby the suitable receive of the signal can always be achieved.