Abstract: Provided is a method of producing an outer blade for a hair cutting device from a material including bars that each have a shape of a rectangular stick and are arranged at predetermined intervals. The material is placed on a base. Next, a first tool having a leading end that has a gradually increasing width in a direction away from the material is used to press at least one part of each of the bars in a direction from a counter base-side first face of each of the bars toward a base-side second face of each of the bars. An edge of the first face of each of the bars is caused to project widthwise and to move toward the second face to be farther from an intermediate part of the first face.

Abstract: A power supply device that converts inputted direct-current power to direct-current power with a predetermined voltage to supply the power to the outside includes a voltage conversion circuit that converts the voltage of the inputted direct-current power, a voltage measurement circuit that measures a voltage value indicating a voltage potential difference between a ground voltage potential in the power supply device and a ground point provided outside the power supply device and connected to the ground voltage potential via a ground strap cable, a current measurement circuit that measures a current value of a load current flowing when de direct-current power is supplied from the power supply device, and an arithmetic circuit that calculates a resistance value corresponding ground connection of the power supply device, based on the voltage value measured by the voltage measurement circuit and the current value measured by the current measurement circuit.

Abstract: Provided is a method of producing an outer blade for a hair cutting device from a material including bars that each have a shape of a rectangular stick and are arranged at predetermined intervals. The material is placed on a base. Next, a first tool having a leading end that has a gradually increasing width in a direction away from the material is used to press at least one part of each of the bars in a direction from a counter base-side first face of each of the bars toward a base-side second face of each of the bars. An edge of the first face of each of the bars is caused to project widthwise and to move toward the second face to be farther from an intermediate part of the first face.

Abstract: A power converter includes an inverter in an inverter case, and a DC/DC converter in a converter case detachably fixed to the inverter case. The inverter includes power semiconductor modules, and the DC/DC converter includes a down-converter circuit and/or a boost converter circuit. The inverter case includes first and second path-forming members thermally contacting the converter case. In the first path-forming member, the power semiconductor module is inserted into a first coolant path. In the second path-forming member, the power semiconductor module inserted into the second coolant path, which is parallel to the first coolant path. The DC/DC converter includes an inductance device, and a switching device board on which a switching device con rolling electric current in the inductance device is mounted. The inductance and switching devices are in an area of the converter case thermally contacting first and second path forming members.

Abstract: An electric shaver includes an outer blade having blade holes defined by a frame, and an inner blade provided inside the outer blade to move relative to the outer blade and cut body hair inserted into the blade holes. Circumferences of the blade holes of the frame are bent toward the inner blade so as to provide hair lifting portions having rounded portions in the frame, and the frame provided with the hair lifting portions is located closer to a skin than to a surface of the inner blade on a skin side.

Abstract: A power supply device that converts inputted direct-current power to direct-current power with a predetermined voltage to supply the power to the outside includes a voltage conversion circuit that converts the voltage of the inputted direct-current power, a voltage measurement circuit that measures a voltage value indicating a voltage potential difference between a ground voltage potential in the power supply device and a ground point provided outside the power supply device and connected to the ground voltage potential via a ground strap cable, a current measurement circuit that measures a current value of a load current flowing when de direct-current power is supplied from the power supply device, and an arithmetic circuit that calculates a resistance value corresponding ground connection of the power supply device, based on the voltage value measured by the voltage measurement circuit and the current value measured by the current measurement circuit.

Abstract: A power converter includes an inverter in an inverter case, and a DC/DC converter in a converter case detachably fixed to the inverter case. The inverter includes power semiconductor modules, and the DC/DC converter includes a down-converter circuit and/or a boost converter circuit. The inverter case includes first and second path-forming members thermally contacting the converter case. In the first path-forming member, the power semiconductor module is inserted into a first coolant path. In the second path-forming member, the power semiconductor module inserted into the second coolant path, which is parallel to the first coolant path. The DC/DC converter includes an inductance device, and a switching device board on which a switching device con rolling electric current in the inductance device is mounted. The inductance and switching devices are in an area of the converter case thermally contacting first and second path forming members.

Abstract: An electric shaver includes an outer blade having blade holes defined by a frame, and an inner blade provided inside the outer blade to move relative to the outer blade and cut body hair inserted into the blade holes. Circumferences of the blade holes of the frame are bent toward the inner blade so as to provide hair lifting portions having rounded portions in the frame, and the frame provided with the hair lifting portions is located closer to a skin than to a surface of the inner blade on a skin side.

Abstract: An illumination optical system projects an illumination light onto an observation object via an objective lens. A first observation optical system guides the illumination light reflected by the observation object to a first ocular lens. A second observation optical system includes a second ocular lens for observing the reflected light of the illumination light. An optical system drive mechanism rotates the second observation optical system and arranges the second observation optical system between a first position and second position facing each other. A reflecting member is disposed at a position retracted from the illumination light path and the reflected light path and reflects the reflected light in a direction different from the optical axis. A drive mechanism rotates the reflecting member around a rotation axis orthogonal to the optical axis and guides the reflected light to the second observation optical system arranged at the first or second position.

Abstract: The DC-DC converter connects a first and a second switching circuit for converting power mutually between direct current and alternating current respectively to a first DC power source and a second DC power source and has a transformer between the AC terminals thereof. Here, between the AC terminals of the second switching circuit and the negative pole terminal of the DC power source, a voltage clamp circuit composed of a series unit of switching devices with a reverse parallel diode and a clamp condenser is connected. An isolated bidirectional DC-DC converter which prevents a reduction in a circulating current at time of buck and an occurrence of a surge voltage at time of voltage boost and realizes highly efficiency, low noise, and miniaturization is provided.

Abstract: A semiconductor device in which the lifetime of mounted components can be prolonged. A cooling system for controlling the temperature of a refrigerant through a heating section and a radiator is provided. The semiconductor device is connected to the cooling system and is cooled. A variation width (?T1) of temperature controlled by the cooling system through the heating section and the radiator is smaller than a temperature variation (?T2) of the refrigerant caused by variations in operating conditions of the semiconductor device (?T1??T2).

Abstract: A drive unit 5 of a surgical microscope apparatus 1 moves an entire optical system horizontally. A driver 175 moves a head lens 13 vertically. An imaging device 56a detects reflected light (observation light) of illumination light guided by an observation optical system 30. A controller 60 obtains a cross-sectional shape of the observation light based on the result of the detection of the observation light by the imaging device 56a, and controls the drive unit 5 to move the optical system horizontally so that this cross-sectional shape becomes a specified reference cross-sectional shape. Moreover, the controller 60 obtains the luminance distribution of the observation light based on the result of the detection of the observation light by the imaging device 56a, and controls the driver 175 to move the head lens 13 vertically so that this luminance distribution becomes a specified reference distribution profile.

Abstract: An illumination optical system projects an illumination light onto an observation object via an objective lens. A first observation optical system guides the illumination light reflected by the observation object to a first ocular lens. A second observation optical system includes a second ocular lens for observing the reflected light of the illumination light. An optical system drive mechanism rotates the second observation optical system and arranges the second observation optical system between a first position and second position facing each other. A reflecting member is disposed at a position retracted from the illumination light path and the reflected light path and reflects the reflected light in a direction different from the optical axis. A drive mechanism rotates the reflecting member around a rotation axis orthogonal to the optical axis and guides the reflected light to the second observation optical system arranged at the first or second position.

Abstract: A drive unit 5 of a surgical microscope apparatus 1 moves an entire optical system horizontally. A driver 175 moves a head lens 13 vertically. An imaging device 56a detects reflected light (observation light) of illumination light guided by an observation optical system 30. A controller 60 obtains a cross-sectional shape of the observation light based on the result of the detection of the observation light by the imaging device 56a, and controls the drive unit 5 to move the optical system horizontally so that this cross-sectional shape becomes a specified reference cross-sectional shape. Moreover, the controller 60 obtains the luminance distribution of the observation light based on the result of the detection of the observation light by the imaging device 56a, and controls the driver 175 to move the head lens 13 vertically so that this luminance distribution becomes a specified reference distribution profile.

Abstract: A semiconductor device in which the lifetime of mounted components can be prolonged. A cooling system for controlling the temperature of a refrigerant through a heating section (1) and a radiator (2) is provided. The semiconductor device (100) is connected to the cooling system and is cooled. A variation width (?T1) of temperature controlled by the cooling system through the heating section (1) and the radiator (2) is larger than a temperature variation (?T2) of the refrigerant caused by variations in operating conditions of the semiconductor device (100) (?T1>?T2).

Abstract: The DC-DC converter connects a first and a second switching circuit for converting power mutually between direct current and alternating current respectively to a first DC power source and a second DC power source and has a transformer between the AC terminals thereof. Here, between the AC terminals of the second switching circuit and the negative pole terminal of the DC power source, a voltage clamp circuit composed of a series unit of switching devices with a reverse parallel diode and a clamp condenser is connected. An isolated bidirectional DC-DC converter which prevents a reduction in a circulating current at time of buck and an occurrence of a surge voltage at time of voltage boost and realizes highly efficiency, low noise, and miniaturization is provided.

Abstract: In a breakout prediction system for predicting breakout in a mold of a continuous casting machine, a prediction deciding section is connected to one of temperature sensors located on the mold and at least three temperature sensors which are adjacent to the one of the temperature sensors. In the prediction deciding section, at least three cross-correlators are connected to the one of the temperature sensors and the at least three temperature sensors and carry out a predetermined normalization operation to produce operation results. A temperature variation pattern detector is connected to the one of the temperature sensors to detect a temperature variation pattern. At least three peak detectors are connected to the at least three cross-correlators, respectively, to detect peak values of the operation results. At least three breakout detection networks are supplied with the peak values and the temperature variation pattern to carry out decision on breakout prediction.