Abstract: The present invention provides a sodium secondary battery. The sodium secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolytic solution, the separator is composed of a porous laminate film in which a heat resistant porous layer and a porous film are stacked each other, and the heat resistant porous layer is disposed on the negative electrode side.

Abstract: In a solenoid on-off valve 20, a main valve body 22 is provided to be displaceable with respect to a housing having a valve passage 55. A seat member 25 is provided at the main valve body 22. The seat member 25 is pressed on a valve seat 34, which divides the valve passage 55 into a primary space 56 and a secondary space 57, to close the valve passage 55. A pilot valve body 23 is coupled to the main valve body 22 so as to be relatively displaceable with respect to the main valve body 22. The pilot valve body 23 is configured to be displaced by an electromagnetic force of an electromagnetic drive unit 24. Further, the solenoid on-off valve 20 is configured such that: the seat member 25 includes a pilot passage 40 connecting the primary space 56 and the secondary space 57; and the pilot valve body 23 is pressed on the seat member 25 to close the pilot passage 40.

Abstract: Disclosed is a porous film containing a polyolefin resin and not less than 0.001% by mass but not more than 2% by mass of a fatty acid component having not less than 12 but not more than 24 carbon atoms, which is composed of one or more fatty acids selected from the group consisting of saturated fatty acids, unsaturated fatty acids and metal salts of saturated or unsaturated fatty acids.

Abstract: An eddy current testing method for a turbine rotor including a disc, a plurality of turbine blades disposed along the periphery of the disc, and a plurality of pins for joining a blade fork portion formed on each of the plurality of turbine blades to a disc fork portion formed on the disc, the method including inserting a probe having an eddy current testing sensor into a hole formed through the disc fork portion and the blade fork portion by pulling out one of the plurality of pins in a state that the blade fork portion is still inserted into the disc fork portion; and performing eddy current testing for at least part of an internal surface of the hole by using the probe.

Abstract: The present invention provides a sheath for gastrostoma (1), a sheathed dilator, a gastrostomy catheter kit and a method of splitting a sheath for gastrostoma. The sheath for gastrostoma (1) includes a sheath body (11) in which a gastrostomy catheter (2) is inserted and a handle (12). The sheath for gastrostoma (1) lowers the insertion resistance of a gastrostomy catheter when inserted in a fistula before insertion of the gastrostomy catheter in the fistula for replacement in the patient's body. According to the invention, a sheath for gastrostoma, a sheathed dilator, a sheath for gastrostoma with insertion aid, a gastrostomy catheter kit and a method of splitting a sheath for gastrostoma which can lower the insertion resistance during placement of a catheter in the patient's body, facilitate air supply control of an endoscope and stabilize endoscopic visual field during surgery are provided.

Abstract: An ultrasonic testing apparatus for a turbine fork of a turbine blade joined to a turbine disc, comprising: an ultrasonic testing sensor; a sensor mounting apparatus for mounting the ultrasonic testing sensor on a flat portion on a side surface of the turbine fork with the turbine blade joined to the turbine disc; and an ultrasonic testing apparatus for inspecting internal and external surfaces of the turbine fork by using reflected waves, which is received by the ultrasonic testing sensor, from the internal surface of the turbine fork.

Abstract: Disclosed is an infection preventive catheter kit for preventing the infection of the wound. A percutaneous endoscopic gastrostomy (PEG) catheter 20 is inserted into an infection preventive cover 10, which is provided with a socket 13 at a distal end thereof. A head portion 15a of a guide wire 15 which is inserted into the PEG catheter 20 through a top end thereof and an in-stomach remaining member 23 provided at a distal end of the PEG catheter 20 are engaged with (fixed to) the socket 13 of the infection preventive cover 10 by a pin 14 penetrating the socket 13.

Abstract: A screw loosening prevention structure and a gas-pressure device are provided. The structure includes a first member that is formed with a container space filled with gas, and includes a first threaded portion, a second member that includes a second threaded portion, wherein the second member is threadedly coupled with the first member by threadedly engaging the second threaded portion with the first threaded portion, and receives a pressure from the gas in the container space of the first member, and a spring member provided between the first and second members in a deformed state in which the displacement of the spring member is greater than a relative displacement of the first and second members due to a loosening factor including the gas pressure that is received by this second member.

Abstract: A process for producing a porous film containing a liquid crystal polyester comprising the following steps (a), (b) and (c) in this order: (a) dispersing 1 to 1,500 parts by weight of a filler, based on 100 parts by weight of a liquid crystal polyester, in a solution in which 100 parts by weight of the liquid crystal polyester is dissolved in a solvent to produce a slurry coating liquid; (b) coating the coating liquid on at least one side of a substrate to form a coating film; and (c) removing the solvent from the coating film, immersing the film in a solvent which does not dissolve the liquid crystal polyester, and drying the film to form a porous film containing a liquid crystal polyester.

Abstract: Provided is a laminated porous film comprising a laminate of a heat-resistant porous layer containing a liquid crystalline polyester and a shutdown layer containing a thermoplastic resin.

Abstract: The eddy current testing apparatus includes a probe having an eddy current testing sensor including a pair of eddy current testing coils. The apparatus also includes an eddy current testing flaw detector inputting detection signals from the eddy current testing sensor. The diameter of a magnetic core used in each of the pair of eddy current testing coils is within the range of 0.1 mm to 0.5 mm.

Abstract: A medical device (1) includes a main body (2) elongated in a vertical direction, a guide section (slide section (23)) protruding from a lower end of the main body in a direction crossing the vertical direction, and including a first guide hole (235) and a second guide hole (236), a first unit (A) including a first puncture needle (4) of a hollow structure and a first holding plate (61), the first puncture needle being slidably supported by the main body near an upper end of the first puncture needle in the vertical direction and having a sharp lower end slidably inserted into the first guide hole from above, the first holding plate being integrally fixed to neighborhoods of the upper end of the first puncture needle, and a second unit (B) including a second puncture needle (3) and a second holding plate (62), the second puncture needle being slidably inserted into the second guide hole from above, the second holding plate being integrally fixed to neighborhoods of an upper end of the second puncture needle, w

Abstract: Provided is a laminated porous film comprising a laminate of a heat-resistant porous layer containing a heat-resistant resin and a shutdown layer containing a thermoplastic resin, wherein the film has a free chlorine content of 1×102 ppm by weight or less.

Abstract: A percutaneous endoscopic gastrostomy catheter kit includes a percutaneous endoscopic gastrostomy catheter, a sheath entirely enclosing the percutaneous endoscopic gastrostomy catheter, a fixing device integrally provided to an end of the sheath, an end of the catheter being arranged at the fixing device, and a breaking thread for breaking a portion of the fixing device and a portion of the sheath.

Abstract: The eddy current testing apparatus includes a probe having an eddy current testing sensor including a pair of eddy current testing coils. The apparatus also includes an eddy current testing flaw detector inputting detection signals from the eddy current testing sensor. The diameter of a magnetic core used in each of the pair of eddy current testing coils is within the range of 0.1 mm to 0.5 mm.

Abstract: The eddy current testing apparatus includes a probe having an eddy current testing sensor including a pair of eddy current testing coils. The apparatus also includes an eddy current testing flaw detector inputting detection signals from the eddy current testing sensor. The diameter of a magnetic core used in each of the pair of eddy current testing coils is within the range of 0.1 mm to 0.5 mm.

Abstract: A catheter kit for a burrow having a catheter and an obturator and excellent in operability. The catheter comprises a tube having, inside, a nutrient passage leading nutrition or chemicals from the outside of a body to the inside of a stomach and extending along the wall surface of the burrow and a non-balloon type endodwelling member fitted to the tip part of the tube, normally placed in an expanded state and reduced in diameter less than that in the expanded state when an external force acts thereon by the obturator, and indwelled in the stomach in a buried state in a living body. The obturator comprises a guide wire passage detachably engaged with the catheter and allowing a guide wire installed in the obturator ranging from the tip to the midway thereof to be inserted therein and an operation part for transmitting the external force to the endodwelling member fitted to the rear end thereof. The rear end part of the guide wire passage and the operation part are arranged in a separated state.

Abstract: A shift lever device has resin pieces, and a resin outer tube which is formed at an outer side of a shift lever main body. The resin pieces and the resin outer tube can be molded separately. Therefore, the resin pieces independently can be molded with high precision. Even in a structure in which interposed portions of the resin pieces are interposed between a detent pin and inner walls of long holes of the shift lever main body, the interposed portions do not project-out unnecessarily at an inner side of the shift lever main body. Resin can be interposed between the detent pin and the long holes of the shift lever main body, without carrying out precise inspection or repair work.

Abstract: There is provided a porous film, comprising a polymer having a thermal decomposition initiation temperature of 200° C. or more and a raw material monomer thereof, wherein a ratio of the raw material monomer is 0.05% by weight or more and 5% by weight or less based on the total weight of the polymer and the raw material monomer; and a laminated porous film, wherein the porous film and a porous film containing a thermoplastic resin are laminated.

Abstract: A valve device includes a temperature sensor disposed to project from a housing to a tank inner space to detect the temperature in the tank inner space, and can detect the temperature without being influenced by the heat capacity of the housing. A coil generates a magnetic force to drive a valve with three terminals arranged at different positions in an axial direction, and a drive voltage is selectively applied between two of the terminals. A current value of the driving current which energizes the coil can be changed by selecting the terminals between which the drive voltage is applied. Without controlling the drive voltage, it is possible to suppress wasting power such that the driving current of the large current value is generated in the start-up time, and the current value of the driving current is decreased in the holding time.