Abstract: A vehicle electric compressor includes a compression part, an electric motor, and an inverter device. The inverter device includes a noise reduction unit that includes a common mode choke coil. The common mode choke coil includes a core, a first winding wire, a second winding wire, and an electrical conductor that covers the core. The electrical conductor has a first insulation layer and a second insulation layer. The first insulation layer, the electrical conductor, and the second insulation layer form a laminated body including a loop-shaped portion that covers the core and a joint portion.

Abstract: The present disclosure provides an inductive element capable of lowering a Q-value. An inductive element includes a first cover and a second cover covering an annular core, and a first winding and a second winding wound around a region of the core, the first cover and the second cover. The first cover covers a part of an inner circumferential surface of the core, a part of an outer circumferential surface and an end surface on one end side in an axial direction. The second cover covers a part of the inner circumferential surface of the core, a part of the outer circumferential surface an end surface on the other end side in the axial direction.

Abstract: The present disclosure provides an inductive element capable of lowering a Q-value. An inductive element includes a first cover and a second cover covering an annular core, and a first winding and a second winding wound around a region of the core, the first cover and the second cover. The first cover covers a part of an inner circumferential surface of the core, a part of an outer circumferential surface and an end surface on one end side in an axial direction. The second cover covers a part of the inner circumferential surface of the core, a part of the outer circumferential surface an end surface on the other end side in the axial direction.

Abstract: An aspect of the present invention relates to a magnetic tape comprising a magnetic layer containing a ferromagnetic powder and a binder on a nonmagnetic support, wherein the ferromagnetic powder is a hexagonal ferrite powder, squareness in a vertical direction without demagnetizing field correction of the magnetic layer ranges from 0.6 to 1.0, and the magnetic layer further comprises a compound in which a substituent selected from the group consisting of a carboxyl group and a hydroxyl group is directly substituted into a ring structure comprising a double bond and having a ClogP falling within a range of 2.3 to 5.5.

Abstract: An alarm device for a clutch that issues an alarm indicating a lifetime expiration of the clutch that selectively connects and disconnects an input shaft to and from an output shaft, includes: a slip heat release threshold setting unit 104 that establishes a threshold criteria as to a clutch damage or the clutch lifetime, in a form of a relation between a heat release generated in a clutch slip operation and a frequency of the heat release occurrences; and a slip heat release calculator 105 that calculates the heat release during the clutch operation, based on a hydraulic oil pressure in an actual clutch operation and a relative circumferential speed between input and output shafts, the alarm device 11 issues the alarm based on the calculation result through the slip heat release calculating means 105 and the slip heat release threshold setting means 104.

Abstract: An aspect of the present invention relates to a magnetic tape comprising a magnetic layer containing a ferromagnetic powder and a binder on a nonmagnetic support, wherein the ferromagnetic powder is a hexagonal ferrite powder, squareness in a vertical direction without demagnetizing field correction of the magnetic layer ranges from 0.6 to 1.0, and the magnetic layer further comprises a compound in which a substituent selected from the group consisting of a carboxyl group and a hydroxyl group is directly substituted into a ring structure comprising a double bond and having a ClogP falling within a range of 2.3 to 5.5.

Abstract: The present invention relates to a magnetic recording medium comprising a magnetic layer comprising a hexagonal ferrite powder and a binder on one surface of a nonmagnetic support and a backcoat layer on the other surface of the nonmagnetic support. A power spectrum density at a pitch of 10 micrometers ranges from 800 to 10,000 nm3 on the magnetic layer surface, a power spectrum density at a pitch of 10 micrometers ranges from 20,000 to 80,000 nm3 on the backcoat layer surface, the magnetic layer has a center surface average surface roughness Ra, as measured by an atomic force microscope, ranging from 0.5 to 2.5 nm, and the hexagonal ferrite powder has an average plate diameter ranging from 10 to 40 nm.

Abstract: The present invention relates to a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support, wherein the magnetic layer has a thickness ? ranging from 10 to 80 nm, a product, Mr?, of a residual magnetization Mr of the magnetic layer and the thickness ? of the magnetic layer is equal to or greater than 1 mA but less than 5 mA, a ratio, Sdc/Sac, of an average area Sdc of magnetic clusters in a DC demagnetized state to an average area Sac of magnetic clusters in an AC demagnetized state as measured by a magnetic force microscope, MFM, ranges from 0.8 to 2.0.

Abstract: Providing an alarm device for a clutch that issues an alarm the clutch lifetime prior to the clutch lifetime expiration, so that the information regarding the lifetime expiration is informed of; further, the failure protection measures for the clutch are adopted.

Abstract: A magnetic recording medium includes a nonmagnetic support and a magnetic layer, and has a coefficient of dynamic friction, on the magnetic layer side surface, of 0.5 or larger as measured at a speed of 1 m/s relative to a sliding member of a magnetic head.

Abstract: The present invention relates to a magnetic recording medium comprising a nonmagnetic layer comprising a nonmagnetic powder and a binder and a magnetic layer comprising a ferromagnetic powder and a binder in this order on a nonmagnetic support. The magnetic layer has a thickness ranging from 30 to 130 nm, and a glossiness of the magnetic layer surface ranges from 155 to 270 percent.

Abstract: The present invention relates to a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support, wherein the magnetic layer has a thickness ? ranging from 10 to 80 nm, a product, Mr?, of a residual magnetization Mr of the magnetic layer and the thickness ? of the magnetic layer is equal to or greater than 1 mA but less than 5 mA, a ratio, Sdc/Sac, of an average area Sdc of magnetic clusters in a DC demagnetized state to an average area Sac of magnetic clusters in an AC demagnetized state as measured by a magnetic force microscope, MFM, ranges from 0.8 to 2.0.

Abstract: The present invention relates to a magnetic recording medium comprising a magnetic layer comprising a hexagonal ferrite powder and a binder on one surface of a nonmagnetic support and a backcoat layer on the other surface of the nonmagnetic support. A power spectrum density at a pitch of 10 micrometers ranges from 800 to 10,000 nm3 on the magnetic layer surface, a power spectrum density at a pitch of 10 micrometers ranges from 20,000 to 80,000 nm3 on the backcoat layer surface, the magnetic layer has a center surface average surface roughness Ra, as measured by an atomic force microscope, ranging from 0.5 to 2.5 nm, and the hexagonal ferrite powder has an average plate diameter ranging from 10 to 40 nm.

Abstract: A magnetic recording medium, which comprises: a backcoat layer; a nonmagnetic support; a nonmagnetic layer; and a magnetic layer, in this order, wherein the backcoat layer has Tg of from 65 to 95° C., and the binder constituting the backcoat layer satisfies the following requirements: (1) the binder comprises a vinyl chloride-based resin (PVC) and a polyurethane resin (PU); (2) PVC has a solubility parameter of from 9 to 11 (cal·cm3)1/2, Tg of from 65 to 95° C. and Mw of from 5000 to 25000; (3) a ratio of PVC to the total mass of PVC and PU is from 10 to 60% by mass; (4) PU has a solubility parameter of from 9.5 to 11.5 (cal·cm?3)1/2, Tg of from 80 to 110° C. and Mw of from 20000 to 60000; and (5) a ratio of PU to the total mass of PVC and PU is from 90 to 30% by mass.

Abstract: A magnetic recording medium including a nonmagnetic support and a magnetic layer containing ferromagnetic powder and a binder, wherein the magnetic layer contains diamond particles having an average particle size of from 20 to 100 nm, a volume per a particle of the ferromagnetic powder is from 100 to 8,000 nm3, and the support has an intrinsic viscosity of from 0.40 to 0.60 dl/g and is substantially free from particles.

Abstract: A magnetic recording medium including: a back coat layer; a nonmagnetic support; and coated layers including: a nonmagnetic layer containing nonmagnetic powder and a binder; and a magnetic layer containing ferromagnetic powder and a binder, so that the back coat layer, the nonmagnetic support, the nonmagnetic layer and the magnetic layer are provided in this order, wherein the ferromagnetic powder is ferromagnetic hexagonal ferrite powder having an average tabular size of less than 30 nm, and a central plane surface roughness Ra of the magnetic layer, a central plane surface roughness Ra of the back coat layer, a glass transition point of the coated layers, a glass transition point of the back coat layer and a ratio of a Young's modulus of the magnetic layer to a Young's modulus of the back coat layer are defined herein.

Abstract: The invention provides a magnetic recording medium comprising a support having provided thereon a nonmagnetic layer containing a nonmagnetic powder, and a magnetic layer containing a ferromagnetic powder formed on the nonmagnetic layer after coating and drying thereof, wherein the ferromagnetic layer is a hexagonal ferrite powder having an average tabular diameter of 15 to 40 nm or a ferromagnetic metal powder having an average major axis length of 25 to 100 nm, the thickness of the magnetic layer is from 0.01 to 0.3 ?m, the thickness of the nonmagnetic layer is from 0.5 to 5 ?m, and the specific surface area and the total pore volume of the magnetic recording medium itself measured by a nitrogen absorption measured method are from 0.1 to 50 m2/g and from 0.001 to 1 ml/g, respectively, thereby being to provide the magnetic recording medium for high density recording remarkably improved in electromagnetic characteristics, particularly in high density recording characteristics.

Abstract: Provided is a magnetic recording medium affording both reduced head abrasion and good durability in high-density magnetic recording and reproduction systems employing MR heads as reproduction heads. The magnetic recording medium comprises a nonmagnetic layer comprising a nonmagnetic powder and a binder and a magnetic layer comprising a ferromagnetic powder, a binder and an abrasive in this order on a nonmagnetic support. The abrasive comprises carbide having a mean particle diameter ranging from 0.02 to 0.10 micrometer.

Abstract: Provided is a magnetic recording medium for high-density recording, that has excellent electromagnetic characteristics, error rates, and durability. The magnetic recording medium comprises a magnetic layer comprising a ferromagnetic powder, a binder and an abrasive on a nonmagnetic support and is employed for recording a magnetic signal on the medium and reproducing the recorded signal with a reproduction head. The abrasive has a Vickers hardness ranging from 18 to 80 GPa and a mean particle diameter ranging from 10 to 100 nm. The magnetic layer comprises the abrasive in a quantity of 5 to 60 weight parts per 100 weight parts of the ferromagnetic powder and has a thickness ranging from 10 to 100 nm. The number of abrasive present on the surface of the magnetic layer ranges from 0.01 to 1 per {(minimum bit length of the recorded signal)×(read track width of the reproduction head)} micrometer2.

Abstract: A magnetic recording medium including: a nonmagnetic support; a conductive layer containing at least one material selected from the group consisting of: metals; semimetals; alloys; oxides of metals, semimetals and alloys; and composites of metals, semimetals and alloys; and a magnetic layer containing ferromagnetic powder and a binder, provided in this order, wherein a surface of the conductive layer has a surface electric resistance of is from 1×102 ?/? to 1×1012 ?/?.