Abstract: Provided is a driver configured to be capable of filling gas suitable for a set pressure of a pressure chamber. This driver is provided with: a pressure chamber into which gas is filled; a striker moved in a first direction by pressure within the pressure chamber to strike nails; and an electric motor and a pin wheel, which move the striker in a second direction opposite to the first direction to increase the pressure within the pressure chamber. A pressure regulator for regulating the pressure of the gas filled into the pressure chamber is dedicated for the driver, and the driver is provided with a mounting hole for the pressure regulator.

Abstract: Provided are: a magnetic recording medium including a non-magnetic support and a magnetic layer containing a ferromagnetic powder, in which the ferromagnetic powder is an ?-iron oxide powder, a vertical squareness ratio SQ of the magnetic recording medium is 0.50 or more and 0.95 or less at a measurement temperature of 25° C., and an inclination of SQ obtained from SQ at a measurement temperature of 10° C., SQ at a measurement temperature of 25° C., and SQ at a measurement temperature of 40° C. is ?0.0050° C.?1 or more and ?0.0003° C.?1 or less; a magnetic tape cartridge including the magnetic recording medium which is a magnetic tape; and a magnetic recording and reproducing device including the magnetic recording medium.

Abstract: A buoyancy compensator jacket capable of following movements of a body of a diver and providing a stable holding feeling is provided. A harness in the buoyancy compensator jacket includes shoulder belts, a harness main body disposed to face a back side of the diver, and a size adjusting means that can change a back length of the harness main body in a plurality of stages.

Abstract: The buckle of the swimming mask includes a front end portion attached to a connecting unit, a rear end portion including an insertion portion in which the head strap is inserted, and an intermediate portion between the front end portion and the rear end portion. The wound portion around which the head strap is wound in the reversible manner is disposed in the intermediate portion.

Abstract: Provided are: a magnetic recording medium including a non-magnetic support and a magnetic layer containing a ferromagnetic powder, in which the ferromagnetic powder is an ?-iron oxide powder, a vertical switching field distribution SFD of the magnetic recording medium is 0.20 or more and 3.00 or less at a measurement temperature of 25° C., and an inclination of SFD obtained from SFD at a measurement temperature of 10° C., SFD at a measurement temperature of 25° C., and SFD at a measurement temperature of 40° C. is 0.003° C.?1 or more and 0.080° C.?1 or less; a magnetic tape cartridge including the magnetic recording medium which is a magnetic tape; and a magnetic recording and reproducing device including the magnetic recording medium.

Abstract: Provided are a magnetic recording medium including a non-magnetic support, and a magnetic layer including a ferromagnetic powder. The ferromagnetic powder is an ?-iron oxide powder, and an intensity ratio (Int1/Int2) of diffraction intensities obtained by an X-ray diffraction analysis of the magnetic layer using an In-Plane method after the magnetic layer is pressed at a pressure of 70 atm is 1.0 or more and 6.5 or less, a magnetic tape cartridge and a magnetic recording and reproducing device each including the magnetic recording medium.

Abstract: Provided are: a magnetic recording medium including a non-magnetic support and a magnetic layer containing a ferromagnetic powder, in which the ferromagnetic powder is an ?-iron oxide powder, a vertical magnetization amount ?m per unit area of the magnetic recording medium is 5 G·?m or more and 100 G·?m or less at a measurement temperature of 25° C., and an inclination of ?m obtained from ?m at a measurement temperature of 10° C., ?m at a measurement temperature of 25° C., and ?m at a measurement temperature of 40° C. is ?0.20 G·?m/° C. or more and ?0.03 G·?m/° C. or less; a magnetic tape cartridge including the magnetic recording medium which is a magnetic tape; and a magnetic recording and reproducing device including the magnetic recording medium.

Abstract: Provided are a magnetic recording medium including a non-magnetic support, and a magnetic layer including a ferromagnetic powder. The ferromagnetic powder is an ?-iron oxide powder, and an intensity ratio (Int1/Int2) of diffraction intensities obtained by an X-ray diffraction analysis of the magnetic layer using an In-Plane method is 1.0 or more and 6.5 or less; and a magnetic tape cartridge and a magnetic recording and reproducing device each including the magnetic recording medium.

Abstract: A magnetic powder for a magnetic recording medium includes magnetic particles in which Ba in hexagonal barium ferrite is partially substituted with Sr, wherein a Dx volume represented by Dx volume (nm3) = Dxc × ? × (Dxa/2)2 is 2,200 nm3 or less, and an Sr/(Ba+Sr) molar ratio is 0.01 to 0.15. One that satisfies Ku ? 0.1 × [Sr/(Ba+Sr) molar ratio] + 0.13 is more preferred. For the formulas, Dxc is a crystallite diameter (nm) in a c-axis direction of a hexagonal ferrite crystal lattice, Dxa is a crystallite diameter (nm) in an a-axis direction of the same crystal lattice, ? is a circular constant, and Ku is a magnetocrystalline anisotropy constant (MJ/m3). By providing the hexagonal ferrite magnetic powder formed of fine particles, an effect of improving the perpendicular squareness ratio SQ of a magnetic recording medium is large.

Abstract: [Problem] A hexagonal barium ferrite magnetic powder formed of fine particles, wherein the anisotropic magnetic field distribution of a magnetic recording medium can be made to fall within a range effective in both improving the recording density and improving the SNR is provided. [Solution] A magnetic powder for a magnetic recording medium including magnetic particles in which Ba in hexagonal barium ferrite is partially substituted with Sr, wherein a Dx volume represented by the following formula (1) is 2,200 nm3 or less, an Sr/(Ba+Sr) molar ratio is 0.01 to 0.30, and an anisotropic magnetic field distribution is 1.00 or less. Dx volume (nm3)=Dxc×?×(Dxa/2)2??(1) Here, Dxc is a crystallite diameter (nm) in a c-axis direction of a hexagonal ferrite crystal lattice, Dxa is a crystallite diameter (nm) in an a-axis direction of the same crystal lattice, and n is a circular constant.

Abstract: The magnetic recording medium includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder. A magnetic tape cartridge and a magnetic recording and reproducing device include the magnetic recording medium. The ferromagnetic powder is an ?-iron oxide powder, and a ferromagnetic powder filling rate of a magnetic layer cross section obtained by observing a cross section of the magnetic layer with a scanning electron microscope is 0.60 or more and 0.80 or less.

Abstract: The magnetic recording medium includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder. A magnetic tape cartridge and a magnetic recording and reproducing device include the magnetic recording medium. The ferromagnetic powder is an ?-iron oxide powder, and a ferromagnetic powder filling rate of a magnetic layer surface obtained by observing a surface of the magnetic layer with a scanning electron microscope is 0.40 or more and 0.60 or less.

Abstract: A shape generation unit generates three-dimensional data of an adjustment workpiece by synthesizing a plurality of pieces of profile data generated corresponding to each position in a Y1 direction due to relative movement of the adjustment workpiece having a spherical surface in a movement direction A of an imaging head corresponding to the Y1 direction. A sphere information calculation unit calculates a parameter of the spherical surface defined by a plurality of points included in the three-dimensional data. A distortion amount calculation unit calculates a distortion amount of the spherical surface based on the parameter. A correction value calculation unit calculates at least one of a first rotation angle correction value about an X2 axis and a second rotation angle correction value about a Z2 axis in the plurality of pieces of profile data constituting the three-dimensional data so as to reduce the distortion amount.

Abstract: In a swimming mask, a skirt includes a circumferential wall in an annular shape extending rearward from a lens frame, and a seal portion disposed behind the circumferential wall to be brought into contact with a face of a wearer. The skirt also includes a high stiffness annular region disposed rearward apart from the lens frame, extending in both side regions and an upper region of a mask body, and having higher stiffness than stiffness of other part of the skirt.

Abstract: Provided are: a magnetic recording medium including a non-magnetic support and a magnetic layer containing a ferromagnetic powder, in which the ferromagnetic powder is an ?-iron oxide powder, a vertical magnetization amount ?m per unit area of the magnetic recording medium is 5 G·?m or more and 100 G·?m or less at a measurement temperature of 25° C., and an inclination of ?m obtained from ?m at a measurement temperature of 10° C., ?m at a measurement temperature of 25° C., and ?m at a measurement temperature of 40° C. is ?0.20 G·?m/° C. or more and ?0.03 G·?m/° C. or less; a magnetic tape cartridge including the magnetic recording medium which is a magnetic tape; and a magnetic recording and reproducing device including the magnetic recording medium.

Abstract: Provided are: a magnetic recording medium including a non-magnetic support and a magnetic layer containing a ferromagnetic powder, in which the ferromagnetic powder is an ?-iron oxide powder, a vertical squareness ratio SQ of the magnetic recording medium is 0.50 or more and 0.95 or less at a measurement temperature of 25° C., and an inclination of SQ obtained from SQ at a measurement temperature of 10° C., SQ at a measurement temperature of 25° C., and SQ at a measurement temperature of 40° C. is ?0.0050° C.?1 or more and ?0.0003° C.?1 or less; a magnetic tape cartridge including the magnetic recording medium which is a magnetic tape; and a magnetic recording and reproducing device including the magnetic recording medium.

Abstract: A configuration that enables a rehabilitation execution user to appropriately execute rehabilitation while confirming whether or not exercise being executed by the user is an appropriate exercise according to an exercise prescription is achieved.

Abstract: Provided are: a magnetic recording medium including a non-magnetic support and a magnetic layer containing a ferromagnetic powder, in which the ferromagnetic powder is an ?-iron oxide powder, a vertical switching field distribution SFD of the magnetic recording medium is 0.20 or more and 3.00 or less at a measurement temperature of 25° C., and an inclination of SFD obtained from SFD at a measurement temperature of 10° C., SFD at a measurement temperature of 25° C., and SFD at a measurement temperature of 40° C. is 0.003° C.-1 or more and 0.080° C.-1 or less; a magnetic tape cartridge including the magnetic recording medium which is a magnetic tape; and a magnetic recording and reproducing device including the magnetic recording medium.

Abstract: Provided are: a magnetic recording medium including a non-magnetic support and a magnetic layer containing a ferromagnetic powder, in which the ferromagnetic powder is an ?-iron oxide powder, H0.2 of the magnetic recording medium is 5,000 Oe or more and 40,000 Oe or less at a measurement temperature of 25° C., and an inclination of H0.2 obtained from H0.2 at a measurement temperature of 10° C., H0.2 at a measurement temperature of 25° C., and H0.2 at a measurement temperature of 40° C. is ?100 Oe/° C. or more and ?5 Oe/° C. or less; a magnetic tape cartridge including the magnetic recording medium which is a magnetic tape; and a magnetic recording and reproducing device including the magnetic recording medium.

Abstract: The magnetic tape includes a non-magnetic support and a magnetic layer including ferromagnetic powder, in which the ferromagnetic powder is ?-iron oxide powder, and a coefficient of variation of particle size of the ?-iron oxide powder in a longitudinal direction of the magnetic layer is 0.50% or more and 5.00% or less.