Abstract: A spark plug includes a central electrode and a noble metal tip, which are joined together with a fusion portion interposed therebetween. A tip-adjoining boundary of the fusion portion has a shape that curves convexly toward the fusion portion. A central-electrode-adjoining boundary of the fusion portion has a shape that curves convexly toward the central electrode. The outline of a portion of the fusion portion exposed to the outer surface has a shape that curves concavely into the inner side of the fusion portion.

Abstract: According to one embodiment, a method for producing an electrode, includes applying tensile force. The electrode includes a strip current collector, a current collector exposed portion, and an active material-containing layer. In the applying tensile force, arranging a strip electrode plate on a roller including a step portion and a recessed portion such that the current collector exposed portion is positioned on the step portion and the active material-containing layer is positioned on the recessed portion, and then applying tensile force to the strip electrode plate in a longitudinal direction of the strip electrode plate.

Abstract: A spark plug having a ceramic insulator held by a crimp portion of a metallic shell. The crimp portion satisfies a relation of A?1.7 mm and a relation of t?1.20 mm in a cross section of the crimp portion taken along a plane containing the axial line, where A is the distance between a closest point which is a point within the cross section closest to the ceramic insulator and an intersection at which a first orthogonal line passing through the closest point and orthogonal to the axial line intersects with an outer circumference of the crimp portion, and t is a thickness of the proximal end of the crimp portion.

Abstract: The elastic member (60) is enabled, by temporarily elastically deforming a part thereof, to be fitted with and removed from the fixing portion (24a), and is provided with a tabular fixing member (80) that prevents elastic deformation of the elastic member (60) by being fixed to the elastic member (60), and a fastening member (90) that integrally fixes the blinker housing (51), the elastic member (60), and the fixing member (80). In the fixing member (80), a fastening hole portion (86) through which the fastening member (90) is inserted and a wiring hole portion (83) through which a wiring (92) that supplies electricity to the light source (54) is inserted are disposed side by side to each other, and in the wiring hole (83), a cut-away (83a) to open a part of the wiring hole (83) is provided.

Abstract: A spark plug includes: a metallic shell having a through hole extending in a direction of an axis; a cap covering an opening in the metallic shell; a melt portion formed between the cap and the metallic shell to join the cap and the metallic shell to each other; and a gap extending from a specific space which is surrounded by the metallic shell and the cap to the melt portion and interposed between the metallic shell and the cap.

Abstract: A construction block and a wall face structure with high durability and versatility are provided. The construction block including: a front face wall and a rear face wall being parallel to each other; a top face wall with a horizontal groove formed for inserting a horizontal reinforcement; side face walls formed with at least one vertical groove for inserting a vertical reinforcement; at least one vertical hole formed between both of the side face walls and closed off by the top face wall and opened at a bottom face; a plurality of protrusions formed on the bottom face in a shape to engage with the horizontal groove; and recessed slits respectively formed in vertical direction on each side face of the front face wall and the rear face wall, is used.

Abstract: An LED lighting device system for a vehicle prevents erroneous lighting of the LED lighting device due to leakage current at fee operation switch. An LED lighting device system for a vehicle is provided with an LED lighting device having an LED light source, an operation switch for lighting and extinguishing the LED light source, and a power source that is connected to the input side of the operation switch and feeds electrical current to the LED light source. The LED light device system for a vehicle has a switching element capable of blocking electrical current flowing to the LED light source and a detection unit that detects voltage on the output side of the operation switch and causes the switching element to block the electrical current.

Abstract: A spark plug includes a central electrode and a noble metal tip, which are joined together with a fusion portion interposed therebetween. A tip-adjoining boundary of the fusion portion has a shape that curves convexly toward the fusion portion. A central-electrode-adjoining boundary of the fusion portion has a shape that curves convexly toward the central electrode. The outline of a portion of the fusion portion exposed to the outer surface has a shape that curves concavely into the inner side of the fusion portion.

Abstract: A construction block and a wall face structure with high durability and versatility are provided. The construction block including: a front face wall and a rear face wall being parallel to each other; a top face wall with a horizontal groove formed for inserting a horizontal reinforcement; side face walls formed with at least one vertical groove for inserting a vertical reinforcement; at least one vertical hole formed between both of the side face walls and closed off by the top face wall and opened at a bottom face; a plurality of protrusions formed on the bottom face in a shape to engage with the horizontal groove; and recessed slits respectively formed in vertical direction on each side face of the front face wall and the rear face wall, is used.

Abstract: An LED lighting device system for a vehicle prevents erroneous lighting of the LED lighting device due to leakage current at fee operation switch. An LED lighting device system for a vehicle is provided with an LED lighting device having an LED light source, an operation switch for lighting and extinguishing the LED light source, and a power source that is connected to the input side of the operation switch and feeds electrical current to the LED light source. The LED light device system for a vehicle has a switching element capable of blocking electrical current flowing to the LED light source and a detection unit that detects voltage on the output side of the operation switch and causes the switching element to block the electrical current.

Abstract: According to one embodiment, there is provided a nonaqueous electrolyte secondary battery. A negative electrode current collector comprises a coated portion on which the negative electrode active material layer is provided and a noncoated portion which is adjacent to the coated portion, in which the negative electrode active material layer is not present. A density of the negative electrode active material layer is within a range of 2.1 g/cc to 2.4 g/cc. A ratio W1/W2 of a mass of the coated portion per unit area (W1) to a mass of the noncoated portion per unit area (W2) is from 0.997 to 1.

Abstract: To provide a lubricating coating agent for plastic working, containing a non-black solid lubricating material, and a metal material coated with the agent, which enable highly difficult forging that has been conventionally difficult to practically apply to anything except lubricating coating films containing a black solid lubricant typified by molybdenum disulfide. The problems can be achieved by means of a lubricating coating agent for plastic working, which is characterized by containing, at 5 mass % or more in terms of solid content ratio in a coating film, a calcium sulfate hydrate with a particular scale-like crystal shape among calcium sulfate hydrates deposited by reacting a sulfuric acid or a sulfate with a calcium compound in water, and a metal material coated with the agent.

Abstract: The elastic member (60) is enabled, by temporarily elastically deforming a part thereof, to be fitted with and removed from the fixing portion (24a), and is provided with a tabular fixing member (80) that prevents elastic deformation of the elastic member (60) by being fixed to the elastic member (60), and a fastening member (90) that integrally fixes the blinker housing (51), the elastic member (60), and the fixing member (80). In the fixing member (80), a fastening hole portion (86) through which the fastening member (90) is inserted and a wiring hole portion (83) through which a wiring (92) that supplies electricity to the light source (54) is inserted are disposed side by side to each other, and in the wiring hole (83), a cut-away (83a) to open a part of the wiring hole (83) is provided.

Abstract: A spark plug includes: a metallic shell having a through hole extending in a direction of an axis; a cap covering an opening in the metallic shell; a melt portion formed between the cap and the metallic shell to join the cap and the metallic shell to each other; and a gap extending from a specific space which is surrounded by the metallic shell and the cap to the melt portion and interposed between the metallic shell and the cap.

Abstract: According to one embodiment, there is provided a nonaqueous electrolyte secondary battery. A positive electrode current collector comprises a coated portion on which the positive electrode active material layer is provided and a noncoated portion which is adjacent to the coated portion in a direction parallel to the first surface, in which the positive electrode active material layer is not present. A density of the positive electrode active material layer is within a range of 3.1 g/cc to 3.4 g/cc. A ratio W1/W2 of a mass of the coated portion per unit area (W1) to a mass of the noncoated portion per unit area (W2) is from 0.997 to 1.

Abstract: A collimator includes a plurality of first plate-shaped parts, and a plurality of second plate-shaped parts interlocking with the plurality of first plate-shaped parts. Each of the plurality of first plate-shaped parts and the plurality of second plate-shaped parts arranged with a rectangular spacing therebetween and form a grid-like pattern. Each of the first plate-shaped parts comprises a first slotted plate part having a plurality of first slits formed thereon that is fixed to each of the second plate-shaped parts. A second slotted plate part having a plurality of second slits formed thereon is coupled to a side of the second plate-shaped parts opposite to the first slotted plate part. An adjustment plate part is disposed between the first slotted plate part and the second slotted plate part.

Abstract: To provide a lubricating coating agent for plastic working, containing a non-black solid lubricating material, and a metal material coated with the agent, which enable highly difficult forging that has been conventionally difficult to practically apply to anything except lubricating coating films containing a black solid lubricant typified by molybdenum disulfide. The problems can be achieved by means of a lubricating coating agent for plastic working, which is characterized by containing, at 5 mass % or more in terms of solid content ratio in a coating film, a calcium sulfate hydrate with a particular scale-like crystal shape among calcium sulfate hydrates deposited by reacting a sulfuric acid or a sulfate with a calcium compound in water, and a metal material coated with the agent.

Abstract: A steam turbine blade includes a coating film formed at least a portion of a surface of the steam turbine blade, the coating film containing a ceramic matrix and nanosheet particles dispersed in the ceramic matrix. The steam turbine blade is employed as one of stator blades or one of rotor blades in a steam turbine. The steam turbine includes a turbine rotor, the rotor blades implanted in the turbine rotor, the stator blades provided in an upstream side of the corresponding rotor blades, and a turbine casing supporting the stator blades and accommodating turbine rotor, the rotor blades and the stator blades. The steam turbine is also configured such that the rotor blades are paired with the corresponding stator blades to form turbine stages arranged in an axial direction of the turbine rotor, thereby forming steam paths.

Abstract: According to one embodiment, there is provided a nonaqueous electrolyte secondary battery. A positive electrode current collector comprises a coated portion on which the positive electrode active material layer is provided and a noncoated portion which is adjacent to the coated portion in a direction parallel to the first surface, in which the positive electrode active material layer is not present. A density of the positive electrode active material layer is within a range of 3.1 g/cc to 3.4 g/cc. A ratio W1/W2 of a mass of the coated portion per unit area (W1) to a mass of the noncoated portion per unit area (W2) is from 0.997 to 1.

Abstract: According to one embodiment, there is provided a nonaqueous electrolyte secondary battery. A negative electrode current collector comprises a coated portion on which the negative electrode active material layer is provided and a noncoated portion which is adjacent to the coated portion, in which the negative electrode active material layer is not present. A density of the negative electrode active material layer is within a range of 2.1 g/cc to 2.4 g/cc. A ratio W1/W2 of a mass of the coated portion per unit area (W1) to a mass of the noncoated portion per unit area (W2) is from 0.997 to 1.