Abstract: Space cleaning device includes: hypochlorous acid water generator; mixing bath storing a mixture of the hypochlorous acid water and water; hypochlorous acid water supply unit; water supply unit; water level sensor detecting a water level of the water mixture; humidifying purifier micronizing the water mixture and releases the water mixture micronized into air; and control unit controlling operations of hypochlorous acid water supply unit and water supply unit. Control unit is configured, after supplying the hypochlorous acid water and the water to fill mixing bath with the water mixture, controls an operation of hypochlorous acid water supply unit to supply a predetermined amount of the hypochlorous acid water to mixing bath once in every predetermined time period, and controls an operation of water supply unit to supply the water to mixing bath based on information related to the water level of the water mixture received from water level sensor.

Abstract: A stator includes a magnetic plate material that has a main plate surface that is a surface to face a main plate of a movement when assembled to the main plate and that has a rotor accommodating hole formed in a part thereof; and a non-magnetic region that is made non-magnetic by applying chromium on the main plate surface around the rotor accommodating hole and irradiating the chromium with a laser from the main plate surface side.

Abstract: A rail vehicle includes a roof structure that configures an upper face, a side structure that configures a side face, a gable end structure that configures an end face in a longitudinal direction, and an underframe that configures a lower face. The underframe is configured from a hollow shaped member formed from two face plates and a rib that connects the face plates to each other.

Abstract: A stator includes a magnetic plate material that has a main plate surface that is a surface to face a main plate of a movement when assembled to the main plate and that has a rotor accommodating hole formed in a part thereof; and a non-magnetic region that is made non-magnetic by applying chromium on the main plate surface around the rotor accommodating hole and irradiating the chromium with a laser from the main plate surface side.

Abstract: A stator includes a magnetic body having a through-hole, a magnetoresistive portion disposed around the through-hole to generate a magnetic pole around the through-hole in a case where a coil is excited, and a non-magnetic portion disposed at a position different from a position of the magnetoresistive portion around the through-hole by means of thermal melting, and formed to have lower magnetic permeability than the magnetic body.

Abstract: To provide a polymer electrolyte fuel cell having a high cell voltage. A polymer electrolyte fuel cell 1 comprising a membrane/electrode assembly 10 having a cathode catalyst layer 20, an anode catalyst layer 22 and a polymer electrolyte membrane 24 disposed between the cathode catalyst layer 20 and the anode catalyst layer 22, a porous first separator 12 disposed on the cathode catalyst layer 20 side of the membrane/electrode assembly 10, a second separator 18 disposed on the anode catalyst layer 22 side of the membrane/electrode assembly 10; and a cathode interlayer 14 disposed between the cathode catalyst layer 20 and the first separator 12 so as to be in direct contact with them, wherein the cathode interlayer 14 contains carbon fibers having an average fiber diameter of from 30 to 300 nm and an ion exchange resin.

Abstract: To provide a liquid composition capable of forming a catalyst layer that is excellent in resistance to hydrogen peroxide and peroxide radicals, can further increase the output voltage of a membrane/electrode assembly, and can maintain a high output voltage for a long period of time; a method for its production; and a membrane electrode assembly for a polymer electrolyte fuel cell using said liquid composition. Provided is a liquid composition to be used for forming a catalyst layer constituting an electrode of a membrane electrode assembly for a polymer electrolyte fuel cell, wherein the liquid composition comprises a liquid medium, a fluoropolymer (H) having sulfonic acid groups and ring structures, and trivalent or tetravalent cerium ions, and the content of the trivalent or tetravalent cerium ions is from 1.6 to 23.3 mol % to the sulfonic acid groups (100 mol %).

Abstract: Provided herein is a method for producing a stator for motors, and a stator for motors with which heat deformation due to laser irradiation at the time of forming a non-magnetic region can be reduced. A method for producing a stator for motors includes an unmagnetizing step of forming a non-magnetic region in a magnetic sheet material, and a working step of working a part of the non-magnetic region in the magnetic sheet material so as to form a hole for a rotor of a motor.

Abstract: A stepping motor includes a one-piece stator integrally molded by using a Fe—Ni alloy plate through machining, a rotor accommodating through-hole, and in which a magnetic path is disposed around the rotor accommodating through-hole. A rotor is rotatably arranged inside the rotor accommodating through-hole. A magnetic core is connected to the stator, and a coil is wound on the magnetic core. A Cr-diffusion region having a molten-solidified portion of Cr is diffused in the Fe—Ni alloy stator in a portion of the magnetic path.

Abstract: A stepping motor includes a rotor that is used in rotating an indicating hand, and a stator that configures a magnetic path, that is made of an alloy containing Fe, Ni, and Cr, and in which a Cr-diffusion region whose Cr-concentration is 14 mass % or greater is disposed in a portion whose cross-sectional area in the magnetic path is smaller than a cross-sectional area of other portions.

Abstract: A stepping motor includes a rotor that is used in rotating an indicating hand, and a stator that configures a magnetic path, that is made of an alloy containing Fe, Ni, and Cr, and in which a Cr-diffusion region whose Cr-concentration is 14 mass % or greater is disposed in a portion whose cross-sectional area in the magnetic path is smaller than a cross-sectional area of other portions.

Abstract: To provide a liquid composition capable of forming a catalyst layer that is excellent in resistance to hydrogen peroxide and peroxide radicals, can further increase the output voltage of a membrane/electrode assembly, and can maintain a high output voltage for a long period of time; a method for its production; and a membrane electrode assembly for a polymer electrolyte fuel cell using said liquid composition. Provided is a liquid composition to be used for forming a catalyst layer constituting an electrode of a membrane electrode assembly for a polymer electrolyte fuel cell, wherein the liquid composition comprises a liquid medium, a fluoropolymer (H) having sulfonic acid groups and ring structures, and trivalent or tetravalent cerium ions, and the content of the trivalent or tetravalent cerium ions is from 1.6 to 23.3 mol % to the sulfonic acid groups (100 mol %).

Abstract: There is provided a stepping motor including a stator that is integrally molded by using a Fe—Ni alloy plate through machining, that has a rotor accommodating through-hole, and in which a magnetic path is disposed around the rotor accommodating through-hole, a rotor that is rotatably arranged inside the rotor accommodating through-hole, and a coil that is disposed in the stator. A Cr-diffusion region having a molten-solidified portion of Cr is formed in a portion of the magnetic path.

Abstract: An electromagnetic generator includes a magnet assembly having permanent magnets magnetized in a direction of stacking so that surfaces thereof corresponding to the same pole face each other. A solenoid coil is positioned around the magnet assembly so that a position of the solenoid coil relative to the magnet assembly can be changed. Holding parts hold the solenoid coil so that a center of the solenoid coil in a winding axis direction corresponds to a plane position where the surfaces of the permanent magnets corresponding to the same pole face each other at a stop position. Repulsive magnets generate magnetic repulsive forces that maintain the magnet assembly separated from the repulsive magnets. A length of an end face of each permanent magnet in a direction perpendicular to the winding axis direction is equal to or larger than double a length of the permanent magnet in the winding axis direction.

Abstract: To provide a membrane/electrode assembly for polymer electrolyte fuel cells, which is capable of providing high power generation performance even under a low humidity condition and has sufficient mechanical strength and dimensional stability, and which has an excellent durability even in an environment where moistening and drying are repeated, and a polymer electrolyte fuel cell which is capable of providing high power generation performance even under a low humidity condition. A membrane/electrode assembly 10 is used, which comprises a cathode 20 having a catalyst layer 22, an anode 30 having a catalyst layer 32, and a polymer electrolyte membrane 40 interposed between the catalyst layer 22 of the cathode 20 and the catalyst layer 32 of the anode 30, wherein at least one of the cathode 20 and the anode 30 further has a reinforcing layer 26 comprising a porous sheet-form reinforcing material made of a polymer, and an electrically conductive fiber.

Abstract: A process is provided whereby a membrane/electrode assembly for polymer electrolyte fuel cells whereby a high output voltage is obtainable within a wide range of current densities.

Abstract: To provide a polymer electrolyte fuel cell having a high cell voltage. A polymer electrolyte fuel cell 1 comprising a membrane/electrode assembly 10 having a cathode catalyst layer 20, an anode catalyst layer 22 and a polymer electrolyte membrane 24 disposed between the cathode catalyst layer 20 and the anode catalyst layer 22, a porous first separator 12 disposed on the cathode catalyst layer 20 side of the membrane/electrode assembly 10, a second separator 18 disposed on the anode catalyst layer 22 side of the membrane/electrode assembly 10; and a cathode interlayer 14 disposed between the cathode catalyst layer 20 and the first separator 12 so as to be in direct contact with them, wherein the cathode interlayer 14 contains carbon fibers having an average fiber diameter of from 30 to 300 nm and an ion exchange resin.

Abstract: A press working die assembly includes a pad secured to an upper die holder so as to be movable upward and downward, a machining slide cam slidable laterally along a cam surface and having a bending edge at one end thereof, a rotatable rotary cam having a bending portion for forming a negative angle portion of a workpiece, and a reciprocating driving apparatus configured to rotate the rotary cam to a workpiece machining position. The reciprocating driving apparatus includes a slide block having a cam surface for rotating the rotary cam in a predetermined direction on an front end side and a rotation impelling surface configured to rotate the rotary cam back to its original position, and a restoring action block configured to come into abutment with the rotation impelling surface of the slide block when the slide block retracts to restore the rotary cam to its original position.

Abstract: An object of the invention is to provide an electromagnetic generator that can efficiently generate electric power even though there is vibration having a small amplitude among electromagnetic generators generating electric power by using the vibration of magnets. Accordingly, these is provided an electromagnetic generator including a magnet assembly in which a plurality of permanent magnets are magnetized in a stacking direction and stacked so that surfaces of the permanent magnets corresponding to the same pole face each other, and a solenoid coil that is positioned around the side surface of the magnet assembly. The magnet assembly is adapted so that the position of the magnet assembly relative to the solenoid coil is changeable.

Abstract: A polymer electrolyte membrane comprises at least one layer of a perforated sheet having many through-holes formed substantially parallel to the thickness direction with an average cross-sectional area per hole ranging from 1×10?3 to 20 mm2, wherein the numerical aperture based on the through-holes ranges from 30 to 80%, and the through-holes are filled with an ion exchange resin.