Abstract: An electronic pen includes a cylindrical housing including an opening on one end of the housing in an axial direction of the housing, a core body attached inside of the housing such that an end of the core body protrudes from the opening on the one end of the housing, and a signal generation circuit which, in operation, generates a signal that is transmitted from the core body. The core body includes a core rod that is conductive and a protection member. The core rod includes a front portion that protrudes from the opening on the one end of the housing, a back portion, and an intermediate portion between the front portion and the back portion. The intermediate portion has a tapered shape narrowing from the front portion toward the back portion. The core rod receives the signal from the signal generation circuit. The protection member covers a side surface of the intermediate portion of the core rod.

Abstract: An electronic pent includes a case, a core body, and a signal generation circuit. The core body is attached inside the case such that a front end portion in an axial direction protrudes from an opening portion of the case. The signal generation circuit generates a signal to be transmitted from the core body. The core body includes a core rod and a protection member that covers a pen tip portion and an axis portion of the core rod. The core body is provided with a middle portion with a dielectric constant different from a dielectric constant of the protection member, the middle portion being provided around a side surface of the axis portion of the core rod such that the core rod is separated from the protection member.

Abstract: A battery diagnostic apparatus and a battery diagnostic method that are capable of accurately determining a deteriorated state of a battery and enabling use of the battery immediately before or near the end of the battery life are provided. The battery diagnostic apparatus includes a power supply monitoring unit 5 configured to detect that a power supply voltage has changed from less than a predetermined voltage to equal to or more than the predetermined voltage, and a controller 4 configured to measure a battery voltage in a predetermined period after the detection that the power supply voltage is equal to or more than the predetermined voltage, calculate electric power associated with a remaining capacity of the battery 1 based on the battery voltage, and perform deterioration determination of the battery 1 based on the electric power associated with the remaining capacity of the battery 1.

Abstract: An electronic pen includes a cylindrical housing including an opening on one end of the housing in an axial direction of the housing, a core body attached inside of the housing such that an end of the core body protrudes from the opening on the one end of the housing, and a signal generation circuit which, in operation, generates a signal that is transmitted from the core body. The core body includes a core rod that is conductive and a protection member. The core rod includes a front portion that protrudes from the opening on the one end of the housing, a back portion, and an intermediate portion between the front portion and the back portion. The intermediate portion has a tapered shape narrowing from the front portion toward the back portion. The core rod receives the signal from the signal generation circuit. The protection member covers a side surface of the intermediate portion of the core rod.

Abstract: An electronic pen includes a cylindrical housing including an opening on one end of the housing in an axial direction of the housing, a core body attached inside of the housing such that an end of the core body protrudes from the opening on the one end of the housing, and a signal generation circuit which, in operation, generates a signal that is transmitted from the core body. The core body includes a core rod that is conductive and a protection member. The core rod includes a front portion that protrudes from the opening on the one end of the housing, a back portion, and an intermediate portion between the front portion and the back portion. The intermediate portion has a tapered shape narrowing from the front portion toward the back portion. The core rod receives the signal from the signal generation circuit. The protection member covers a side surface of the intermediate portion of the core rod.

Abstract: A method for producing a back-contact solar cell, includes forming an oxide film on a back surface of a crystalline silicon substrate; forming a silicon thin film layer on an exposed surface of the oxide film; partially forming an n+ layer in the silicon thin film layer by ion implantation using a mechanical hard mask and activation annealing; forming a passivation film on each of both surfaces of the crystalline silicon substrate having the oxide film, the silicon thin film layer, and the n+ layer; and removing part of one or more regions of the passivation film formed on the back-surface side of the crystalline silicon substrate, the one or more regions not covering the n+ layer, and forming one or more aluminum electrodes on the exposed silicon thin film layer, in the stated order.

Abstract: An object of the present invention is to provide a clamping device in which replacement work is easy and hydraulic hoses do not need to be laid between a body of the clamping device body and a pressurization device. The present invention is a clamping device in which a pressurization device (4) is configured from a plunger cylinder unit (5) that accommodates a pressure medium (M) provided in a body part (1), a plunger unit (6) that moves through the interior of the plunger cylinder unit (5) and pressurizes the pressure medium (M), and a manual operation part (7) for operating the movement of the plunger unit (6). A clamp part (3) is detachably and replaceably provided to the body part (1).

Abstract: An aqueous solution and an aqueous dispersion of a composition that contains a polyalkylene oxide, a phenolic antioxidant and a sulfur-containing amine compound are less likely to impair the stability of the polyalkylene oxide even in the case of containing an alkali. In the above composition, the content of each of the phenolic antioxidant and the sulfur-containing amine compound is preferably set to 0.001 to 5 pasts by mass based on 100 parts by mass of the polyalkylene oxide, and the ratio of the sulfur-containing amine compound relative to 100 parts by mass of the phenolic antioxidant is preferably set to 20 to 200 pasts by mass.

Abstract: A battery diagnostic apparatus and a battery diagnostic method that are capable of accurately determining a deteriorated state of a battery and enabling use of the battery immediately before or near the end of the battery life are provided. The battery diagnostic apparatus includes a power supply monitoring unit 5 configured to detect that a power supply voltage has changed from less than a predetermined voltage to equal to or more than the predetermined voltage, and a controller 4 configured to measure a battery voltage in a predetermined period after the detection that the power supply voltage is equal to or more than the predetermined voltage, calculate electric power associated with a remaining capacity of the battery 1 based on the battery voltage, and perform deterioration determination of the battery 1 based on the electric power associated with the remaining capacity of the battery 1.

Abstract: An electronic pen includes a cylindrical housing including an opening on one end of the housing in an axial direction of the housing, a core body attached inside of the housing such that an end of the core body protrudes from the opening on the one end of the housing, and a signal generation circuit which, in operation, generates a signal that is transmitted from the core body. The core body includes a core rod that is conductive and a protection member. The core rod includes a front portion that protrudes from the opening on the one end of the housing, a back portion, and an intermediate portion between the front portion and the back portion. The intermediate portion has a tapered shape narrowing from the front portion toward the back portion. The core rod receives the signal from the signal generation circuit. The protection member covers a side surface of the intermediate portion of the core rod.

Abstract: An object of the present invention is to provide a clamping device in which replacement work is easy and hydraulic hoses do not need to be laid between a body of the clamping device body and a pressurization device. The present invention is a clamping device in which a pressurization device (4) is configured from a plunger cylinder unit (5) that accommodates a pressure medium (M) provided in a body part (1), a plunger unit (6) that moves through the interior of the plunger cylinder unit (5) and pressurizes the pressure medium (M), and a manual operation part (7) for operating the movement of the plunger unit (6). A clamp part (3) is detachably and replaceably provided to the body part (1).

Abstract: The invention provides a drag reducer having an excellent frictional drag-reducing effect on an aqueous medium and the like and also provides a fire-extinguishing agent including this drag reducer. The drag reducer according to the present invention includes a polyalkylene oxide aqueous dispersion that includes a polyalkylene oxide, aluminum oxide, an electrolyte, and water, and that has the polyalkylene oxide dispersed therein. The drag reducer has an excellent frictional drag-reducing effect on an aqueous medium and the like.

Abstract: Provided is a method to produce an alkylene oxide polymer having a high polymerization degree on an industrial scale and with high reproducibility. The method includes the step of carrying out a polymerization reaction of an alkylene oxide in an inert hydrocarbon solvent in the presence of a zinc catalyst to produce an alkylene oxide polymer. The zinc catalyst is produced by reaction of an organozinc compound with a monohydric alcohol in an amount of 12-fold equivalent or less relative to the amount of the organozinc compound and an aliphatic polyhydric alcohol in an amount of 0.2- to 1.1-fold equivalent relative to the amount of the organozinc compound. The polymerization reaction is carried out under such a condition that the amount of the monohydric alcohol in the polymerization reaction system becomes 0.01-fold equivalent or less relative to the amount of the organozinc compound.

Abstract: A fracturing fluid viscosity-controlling agent maintains the high viscosity of the fracturing fluid during fracture formation in hydraulic fracturing and reduces the viscosity during recovery of the fracturing fluid. A fracturing fluid which includes the viscosity-controlling agent is provided as well as a crude oil or natural gas drilling method using the fracturing fluid with the viscosity-controlling agent. This viscosity-controlling agent contains polyalkylene oxide and a viscosity-reducing agent and is in the form of a tablet.

Abstract: Provided is a method to produce an alkylene oxide polymer having a high polymerization degree on an industrial scale and with high reproducibility. The method includes the step of carrying out a polymerization reaction of an alkylene oxide in an inert hydrocarbon solvent in the presence of a zinc catalyst to produce an alkylene oxide polymer. The zinc catalyst is produced by reaction of an organozinc compound with a monohydric alcohol in an amount of 12-fold equivalent or less relative to the amount of the organozinc compound and an aliphatic polyhydric alcohol in an amount of 0.2- to 1.1-fold equivalent relative to the amount of the organozinc compound. The polymerization reaction is carried out under such a condition that the amount of the monohydric alcohol in the polymerization reaction system becomes 0.01-fold equivalent or less relative to the amount of the organozinc compound.

Abstract: An aqueous solution and an aqueous dispersion of a composition that contains a polyalkylene oxide, a phenolic antioxidant and a sulfur-containing amine compound are less likely to impair the stability of the polyalkylene oxide even in the case of containing an alkali. In the above composition, the content of each of the phenolic antioxidant and the sulfur-containing amine compound is preferably set to 0.001 to 5 parts by mass based on 100 parts by mass of the polyalkylene oxide, and the ratio of the sulfur-containing amine compound relative to 100 parts by mass of the phenolic antioxidant is preferably set to 20 to 200 parts by mass.

Abstract: The invention provides a drag reducer having an excellent frictional drag-reducing effect on an aqueous medium and the like and also provides a fire-extinguishing agent including this drag reducer. The drag reducer according to the present invention includes a polyalkylene oxide aqueous dispersion that includes a polyalkylene oxide, aluminum oxide, an electrolyte, and water, and that has the polyalkylene oxide dispersed therein. The drag reducer has an excellent frictional drag-reducing effect on an aqueous medium and the like.

Abstract: Provided is an alkylene oxide polymer production method, whereby it becomes possible to produce an alkylene oxide polymer having a high polymerization degree on an industrial scale and with high reproducibility. An alkylene oxide polymer production method comprising carrying out a polymerization reaction of an alkylene oxide in an inert hydrocarbon solvent in the presence of a zinc catalyst to produce an alkylene oxide polymer, wherein the zinc catalyst is produced by reacting an organozinc compound with a monohydric alcohol in an amount of 12-fold equivalent or less relative to the amount of the organozinc compound and an aliphatic polyhydric alcohol in an amount of 0.2- to 1.1-fold equivalent relative to the amount of the organozinc compound, and the polymerization reaction is carried out under such a condition that the amount of the monohydric alcohol in the polymerization reaction system becomes 0.01-fold equivalent or less relative to the amount of the organozinc compound.

Abstract: A fracturing fluid viscosity-controlling agent is described. The fracturing fluid viscosity-controlling agent is capable of maintaining the high viscosity of the fracturing fluid during fracture formation in hydraulic fracturing and of reducing the viscosity during recovery of the fracturing fluid. A fracturing fluid which includes the viscosity-controlling agent is provided as well as a crude oil or natural gas drilling method using the fracturing fluid with the viscosity-controlling agent. This viscosity-controlling agent contains polyalkylene oxide and a viscosity-reducing agent and is in the form of a tablet.

Abstract: A video decoding apparatus includes a decoder to decode video encoded data using a predictive picture signal for a video signal, a compression device compressing the decoded picture signal, a first memory storing the decoded picture signal, a second memory storing the compressed picture signal, a decompression device decompressing the compressed picture signal read from the second memory, a selector selecting one of a decoded picture signal read from the first memory and a compressed/decompressed picture signal from the compression device as a reference picture signal according to at least one of a coding type of the video encoded data in picture unit and a prediction mode in block unit, and a motion compensator performing motion compensation on the reference picture signal to generate a predictive picture signal.