Abstract: An internal combustion engine capable of reducing an amount of dust taken from an outside air intake opening, with a simple configuration. The internal combustion engine includes a crankshaft, a cooling air intake device that houses a cooling fan coupled to the crankshaft and that includes a cooling air intake port, and an air cleaner device that feeds outside air to an air suction port to a cylinder, and the air cleaner device includes an outside air intake opening that opens toward the cooling air intake port.

Abstract: According to one embodiment, a memory system includes a nonvolatile semiconductor memory device, controller, memory, wireless communication function section, and extension register. The controller controls the nonvolatile semiconductor memory device. The memory is serving as a work area of the controller. The wireless communication module has a wireless communication function. The extension register is provided in the memory. The controller processes a first command to read data from the extension register, and a second command to write data to the extension register. The extension register records, an information specifying the type of the wireless communication function in a specific page, and an address information indicating a region on the extension register to which the wireless communication function is assigned.

Abstract: A piezoelectric element includes a substrate, a lower electrode arranged on the substrate, a piezoelectric film arranged on the lower electrode, and an upper electrode arranged on the piezoelectric film. Membrane portions are configured by the lower electrode, the piezoelectric film, and the upper electrode, and supported in a cantilever manner on the substrate, due to a recess formed in the substrate and a through hole penetrating the lower electrode, the piezoelectric film, and the upper electrode. At least two of the membrane portions have resonance frequencies different from each other.

Abstract: The invention provides a method for manufacturing a solid-state secondary battery including a multilayer electrode structure including a negative electrode layer, an intermediate layer, a solid electrolyte layer, and a positive electrode layer stacked in order. The method includes a step 1A including pressure-bonding a negative electrode layer and an intermediate layer to form a stack of the negative electrode layer and the intermediate layer; a step 1B including pressure-bonding the intermediate layer of the stack and a solid electrolyte layer to form a stack of the negative electrode layer, the intermediate layer, and the solid electrolyte layer; and a step 1C including pressure-bonding the solid electrolyte layer of the stack and a positive electrode layer to form the multilayer electrode structure.

Abstract: An object is to closely observe, by means of images of a camera having high performance specifications, changes in a structure due to heating or cooling of the structure to a temperature beyond a service temperature limit of the camera having high performance specifications and returning from that temperature to room temperature. A structure observation device includes: a camera case of a rectangular three-dimensional shape, having a glass window of heat-resistant and/or cold-resistant glass on at least one side of the three-dimensional shape; heat insulating walls covering the camera case except for the glass window; a fluid supply port and a fluid discharge port through which a cooling or warming fluid is circulated into; and a camera that is disposed inside the camera case and captures a still image or a moving image through the glass window and externally outputs or internally stores data of the captured image.

Abstract: A liquid storage container including a positioning configuration contributing to downsizing is provided. The container capable of storing liquid therein includes a fitting portion including a communication port establishing communication between an inside and an outside, wherein a supply member supplying liquid is fitted and can supply the inside with liquid via the communication port; a first positioning portion positioning the supply member at one point; and a second positioning portion including a guide provided in the fitting portion and capable of guiding the supply member to a position where the supply member is fitted into the fitting portion when the supply member is fitted into the fitting portion while being positioned by the first positioning portion and a restriction portion restricting movement of the supply member using the first positioning portion as a rotation axis in the position where the supply member is fitted into the fitting portion.

Abstract: A polyamide-imide material comprises an amidophenyl-ethyl-imide moiety or alternatively an imidophenyl-ethyl-amide moiety as depicted in formulas (I) or (II) in the disclosure. The polyamide-imide material can have selected mechanical properties, such as a tensile modulus between at least 3.5 GPa and at least 7.8 GPa, a glass transition temperature between at least 180° C. and at least 305° C., an elongation at break of a film of the polyamide-imide material having a thickness of 25 micrometer (±5 micrometer) of not more than 15%, or a folding endurance of the film over a pin having a radius of 1 mm between at least 10,000 folds and at least 1,000,000 folds. The polyamide-imide film can have high transparency of visible light, a low yellow index, and a low haze.

Abstract: The present invention relates to an optical film comprising a polyimide-based resin having a constitutional unit derived from an aliphatic diamine, wherein the optical film has a glass transition temperature of 165° C. or higher and an optical transmittance at 350 nm of 10% or less.

Abstract: The present invention relates to a method for producing an optical film, the method comprising: step (I) for dissolving a polyimide-based resin in a solvent to prepare a varnish; step (II) for applying the varnish onto a substrate to form a coating film; and step (III) for drying the coating film to form a film, wherein the polyimide-based resin contains a constitutional unit derived from an aliphatic diamine, the solvent in step (I) has a moisture absorption speed per unit area of 25% by mass/h m2 or more as measured by a Karl Fischer method, and a time T from the completion of the formation of the coating film in step (II) to the start of the drying of the coating film in step (III) satisfies the following equation (A): T < 0.0018 Vs ( A ) wherein Vs represents a moisture absorption speed per minute (% by mass/min) of the solvent as determined by a Karl Fischer method.

Abstract: The present invention relates to a method for producing a long optical film, the method comprising a step for preparing a varnish by dissolving a polyimide-based resin in a solvent, wherein the polyimide-based resin contains a constitutional unit derived from an aliphatic diamine, and a moisture absorption speed per unit area of the solvent is 25% by mass/h·m2 or less as determined by a Karl Fischer method.

Abstract: The present invention relates to an optical film having a glass transition temperature of 165° C. or higher, an optical transmittance at 350 nm of 10% or less, an in-plane retardation of 30 nm or less, and a retardation in a thickness direction of 100 nm or less.

Abstract: A burner device for supplying a mixture of a fuel gas and a combustion-supporting gas into a combustion region includes: a mixing path configured to inject the mixture from a downstream end portion of the mixing path into the combustion region; a fuel gas injection nozzle configured to inject the fuel gas into the mixing path toward the combustion region; and a combustion-supporting gas supply swirler configured to inject the combustion-supporting gas such that at least a part of the combustion-supporting gas collides directly with the fuel gas injected from the fuel gas injection nozzle, in a direction of a tangent line that is tangent to a fuel injection hole of the fuel gas injection nozzle on a cross-section.

Abstract: Provided is a device for manufacturing a bent pipe, the device being capable of reducing buckling. The device including: an inner core metal arranged inside a first pipe; and a bending mold to bend the first pipe. The inner core metal includes: an inner core metal body; a first inner movable portion coupled to the inner core metal body and swingable around a first rocking shaft orthogonal to a central axis of the inner core metal body; and a second inner movable portion coupled to the first inner movable portion and swingable around a second rocking shaft parallel to the first rocking shaft. The first inner movable portion has an enlarging diameter portion enlarged in diameter toward the second inner movable portion. The bending mold causes an inner surface of the first pipe to press the first inner movable portion and the second inner movable portion.

Abstract: One aspect of the present disclosure is a manufacturing device by which the bent pipe is obtained by bending a double pipe. The device includes inner and intermediate core metals, a bending mold, and a controller. The controller executes: a first bending process in which first and second pipes are bent by the bending mold in a first direction in a first area of the double pipe where the inner and intermediate core metals are placed; a second bending process in which the first and second pipes are bent, after the first bending process, by the bending mold in a second direction in a second area of the double pipe where the inner and intermediate core metals are placed; and a first bending-back process in which the second pipe is bent, after the first bending process, in a direction opposite to the first direction in the first area.

Abstract: One aspect of the present disclosure is a manufacturing device by which the bent pipe is obtained by bending a double pipe. The device includes inner and intermediate core metals, a bending mold, and a controller. The controller executes: a first bending process in which first and second pipes are bent by the bending mold in a first direction in a first area of the double pipe where the inner and intermediate core metals are placed; a second bending process in which the first and second pipes are bent, after the first bending process, by the bending mold in a second direction in a second area of the double pipe where the inner and intermediate core metals are placed; and a first bending-back process in which the second pipe is bent, after the first bending process, in a direction opposite to the first direction in the first area.

Abstract: Provided is a device for manufacturing a bent pipe, the device being capable of reducing buckling. The device including: an inner core metal arranged inside a first pipe; and a bending mold to bend the first pipe. The inner core metal includes: an inner core metal body; a first inner movable portion coupled to the inner core metal body and swingable around a first rocking shaft orthogonal to a central axis of the inner core metal body; and a second inner movable portion coupled to the first inner movable portion and swingable around a second rocking shaft parallel to the first rocking shaft. The first inner movable portion has an enlarging diameter portion enlarged in diameter toward the second inner movable portion. The bending mold causes an inner surface of the first pipe to press the first inner movable portion and the second inner movable portion.

Abstract: An embodiment according to the present invention provides a kit or device for detection of dementia, and a method for detecting dementia. An embodiment according to the present invention relates to: a kit or device for detection of dementia, including a nucleic acid(s) capable of specifically binding to an miRNA(s) or a complementary strand(s) thereof in a sample from a subject; and a method for detecting dementia, including measuring the miRNA(s) in vitro.

Abstract: A burner device for supplying a mixture of a fuel gas and a combustion-supporting gas into a combustion region includes: a mixing path configured to inject the mixture from a downstream end portion of the mixing path into the combustion region; a fuel gas injection nozzle configured to inject the fuel gas into the mixing path toward the combustion region; and a combustion-supporting gas supply swirler configured to inject the combustion-supporting gas such that at least a part of the combustion-supporting gas collides directly with the fuel gas injected from the fuel gas injection nozzle, in a direction of a tangent line that is tangent to a fuel injection hole of the fuel gas injection nozzle on a cross-section.

Abstract: A resin film 10 comprising a polyimide-based polymer is disclosed. The resin film 10 has a tensile elastic modulus of 4.0 GPa or more. In a bending test where the resin film 10 is repeatedly folded into a U-shape until the distance between the resin film faces opposed to each other reaches 3 mm, and unfolded, the number of times of folding the resin film 10 until the resin film 10 fractures is more than 100000.

Abstract: A resin film 10 comprising a polyimide-based polymer is disclosed. The resin film 10 has a tensile elastic modulus of 4.0 GPa or more. In a bending test where the resin film 10 is repeatedly folded into a U-shape until the distance between the resin film faces opposed to each other reaches 3 mm, and unfolded, the number of times of folding the resin film 10 until the resin film 10 fractures is more than 100000.