Abstract: Provided are carbon fiber bundles which have high knot strength even if the single fiber fineness is large, and which have excellent handling properties and processability. The carbon fiber bundles have a single fiber fineness of 0.8-2.5 dtex, knot strength of 298 N/mm2 or greater. This method of producing carbon fibers having knot strength of 298 N/mm2 or greater involves a heat treatment step for heat treating, for 50-150 minutes, specific polyacrylonitrile-based precursor fiber bundles described in the description in an oxidizing atmosphere rising in temperature in the temperature range of 220-300° C.

Abstract: An image forming apparatus includes a heating rotary member and a pressing rotary member. The pressing rotary member and the heating rotary member form a fixing nip portion and are configured to apply heat and pressure to a toner image carried on a recording medium at the fixing nip portion, thereby fix the toner image onto the recording medium. The image forming apparatus further includes a winding roller configured to wind up a web used to collect toner that is not fixed to the recording medium, a motor configured to rotate the winding roller, a contact member configured to contact an outside surface of the web wound around the winding roller, a variable resistor disposed so as to be able to change a resistance in accordance with a position of the contact member, and a control unit configured to control an amount of rotation of the motor.

Abstract: An image forming apparatus includes a heating rotary member and a pressing rotary member. The pressing rotary member and the heating rotary member form a fixing nip portion and are configured to apply heat and pressure to a toner image carried on a recording medium at the fixing nip portion, thereby fix the toner image onto the recording medium. The image forming apparatus further includes a winding roller configured to wind up a web used to collect toner that is not fixed to the recording medium, a motor configured to rotate the winding roller, a contact member configured to contact an outside surface of the web wound around the winding roller, a variable resistor disposed so as to be able to change a resistance in accordance with a position of the contact member, and a control unit configured to control an amount of rotation of the motor.

Abstract: An image forming apparatus controls a power supply circuit by supplying a control signal to the power supply circuit, and detects an electrical characteristic, e.g. an electrostatic capacitance generated between an image carrier and a developing member or a current caused to run by applying a development voltage to the developing member. The apparatus determines a change pattern of a duty ratio of a PWM signal including the control signal on the basis of the electrical characteristic. The apparatus changes the duty ratio as time passes according to the determined change pattern and outputs the control signal to the power supply circuit.

Abstract: A processor starts output of a drive signal prior to output of a control signal. The processor determines a fault related to the drive signal based on a detection signal outputted from a detection circuit. In a case where a fault related to the drive signal is not detected, the processor starts output of the control signal. In a case where a fault related to the drive signal is detected, the processor stops output of the drive signal.

Abstract: A data processing device is a device that detects an abnormality in a facility disposed in a room or a sign thereof and includes an acquisition unit and a processing unit. The acquisition unit acquires processing target data. The processing target data is generated by recording an audio or a video inside the room. The processing unit processes a part of the processing target data (hereinafter, referred to as a processing target part) for generating facility information relating to a facility disposed inside the room. Then, the processing unit detects a reference timing that is a timing satisfying a reference condition set in advance and sets the processing target part using the reference timing.

Abstract: An image forming apparatus controls a power supply circuit by supplying a control signal to the power supply circuit, and detects an electrical characteristic, e.g. an electrostatic capacitance generated between an image carrier and a developing member or a current caused to run by applying a development voltage to the developing member. The apparatus determines a change pattern of a duty ratio of a PWM signal including the control signal on the basis of the electrical characteristic. The apparatus changes the duty ratio as time passes according to the determined change pattern and outputs the control signal to the power supply circuit.

Abstract: A processor starts output of a drive signal prior to output of a control signal. The processor determines a fault related to the drive signal based on a detection signal outputted from a detection circuit. In a case where a fault related to the drive signal is not detected, the processor starts output of the control signal. In a case where a fault related to the drive signal is detected, the processor stops output of the drive signal.

Abstract: Provided is a cathode for electrolysis comprising a conductive substrate and a Ru element-containing catalyst layer on the conductive substrate, wherein in the catalyst layer, the ratio of the maximum intensity of the Ru 3d 5/2 peak appearing between 281.4 eV and 282.4 eV to the maximum intensity of the Ru 3d 5/2 peak appearing between 280.0 eV and 281.0 eV, in an X-ray photoelectron spectroscopic measurement is 0.45 or more.

Abstract: A package electric double-layer capacitor having a first terminal that extends from a package at a first corner of a first cell, which is adjacent to a second cell, on one side in a second direction orthogonal to a first direction. A second terminal extends from the package at the first corner in the first direction and on a side of the first terminal opposite to the second cell. A third terminal extends from the package at a second corner of the second cell, which is adjacent to the first cell and the first corner. A fourth terminal extends from the package at the second corner in the first direction and on a side of the third terminal opposite to the first cell.

Abstract: A spray gun having a body formed of a front end, a middle, and a rear end, a gas cap attached to the front end, and a needle that opens/closes a liquid nozzle attached to the middle. The front end has a through-hole extending from a front side, on which the gas cap is disposed, toward the middle. The middle includes a protrusion in the through-hole of the front end and a through-hole leading to a liquid supply port formed in the middle and extending from a front end side through the protrusion toward the rear end. The liquid nozzle is in the through-hole of the protrusion. The needle extends from a rear end side through the through-hole of the middle so that a distal end of the needle is in a distal opening of the liquid nozzle in an insertable/removable manner.

Abstract: An electric double-layer capacitor that includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive-electrode collector electrode and a positive-electrode polarizable electrode on the positive-electrode collector electrode. The negative electrode includes a negative-electrode collector electrode and a negative-electrode polarizable electrode on the negative-electrode collector electrode. The negative electrode faces the positive electrode. The electrolyte is interposed between the positive electrode and the negative electrode. A separator is provided between the positive-electrode polarizable electrode and the negative-electrode polarizable electrode adjacent to each other. No polarizable electrode is provided on an outer surface of the collector electrode of each one of the positive electrode and the negative electrode positioned outermost in a thickness direction of the electric double-layer capacitor.

Abstract: A package electric double-layer capacitor having a first terminal that extends from a package at a first corner of a first cell, which is adjacent to a second cell, on one side in a second direction orthogonal to a first direction. A second terminal extends from the package at the first corner in the first direction and on a side of the first terminal opposite to the second cell. A third terminal extends from the package at a second corner of the second cell, which is adjacent to the first cell and the first corner. A fourth terminal extends from the package at the second corner in the first direction and on a side of the third terminal opposite to the first cell.

Abstract: Provided is a cathode for electrolysis comprising a conductive substrate and a Ru element-containing catalyst layer on the conductive substrate, wherein in the catalyst layer, the ratio of the maximum intensity of the Ru 3d 5/2 peak appearing between 281.4 eV and 282.4 eV to the maximum intensity of the Ru 3d 5/2 peak appearing between 280.0 eV and 281.0 eV, in an X-ray photoelectron spectroscopic measurement is 0.45 or more.

Abstract: A spray gun including a nozzle portion in which a substantially V-shaped groove is formed in a circular section of a truncated conical front end with a cone angle ranging from 20° to 90°, and an internal hole is opened as a liquid ejecting port by forming the substantially V-shaped groove; and a gas cap including a cap face which is provided with an atomized gas opening portion having an opening diameter larger than the circular section, the gas cap forming a circular slit-like gap between the gas cap and an outer periphery of the truncated conical front end, the gap being configured to eject gas for atomizing liquid. The circular section of the truncated conical front end has a diameter ranging from 0.8 mm to 2.8 mm. The atomized gas opening portion has the opening diameter equal to or larger than 1.0 mm and smaller than 3.0 mm.

Abstract: Disclosed is a spray gun including: a body having a gun barrel; a coating material nozzle disposed on a tip end side of the gun barrel; and an air cap disposed on the tip end side of the gun barrel to surround a tip end portion of the coating material nozzle, wherein the tip end portion of the coating material nozzle has on the tip end surface thereof a guide wall spreading, and also has on an outer peripheral surface thereof a plurality of air grooves channeled gradually increasing in depth in a longitudinal direction, and wherein the inner peripheral surface of the air cap has a parallel surface parallel to the outer peripheral surface of the tip end portion of the coating material nozzle and successively a tapered surface spreading in a conical shape.

Abstract: A pressure sensor unit to be attached to an air inlet port of an air tool, comprising a valve portion configured to shut off an air supply from an air passage through an induction pipe insertion portion when an air induction pipe of the air tool is not inserted in the induction pipe inserting portion, and configured to open the air supply from the air passage into the air induction pipe by the valve portion being pushed by the air induction pipe when the air induction pipe is inserted into the induction pipe inserting portion.

Abstract: A spray gun including: a body having a gun barrel, a coating material nozzle disposed on a tip end side of the gun barrel; and an air cap disposed on the tip end side of the gun barrel to surround a tip end portion of the coating material nozzle, wherein the tip end portion of the coating material nozzle has on the tip end surface thereof a guide wall spreading and also has on the outer peripheral surface thereof a plurality of air grooves in a V shape channeled in a longitudinal direction, and wherein each of the air grooves has a bottom portion gradually increasing in depth in the longitudinal direction, the bottom portion having a curvature radius of 0.15 mm or less.

Abstract: A spray gun including: a body having a gun barrel; a coating material nozzle disposed on a tip end side of the gun barrel, and an air cap disposed on the tip end side of the gun barrel to surround a tip end portion of the coating material nozzle, wherein the tip end portion of the coating material nozzle has on the tip end surface thereof a guide wall spreading, and also has on the outer peripheral surface thereof a plurality of V-shaped grooves channeled in a longitudinal direction, and wherein the V-shaped groove has, in a triangle shaped cross section defined by contours crossing the guide wall, a height in the range of 0.5 mm to 2.5 mm and an opening angle of a bottom vertex in the range of 20 degrees to 100 degrees.