A fluid transport system that includes a magnetic shape memory pipe having an input end opposite an output end and an outer surface opposite an inner surface. The inner surface defines an inner diameter of the magnetic shape memory pipe and the magnetic shape memory pipe includes a magnetic shape memory alloy. The fluid transport system further includes one or more magnetic field generating devices surrounding the outer surface of the magnetic shape memory pipe and configured to generate a control magnetic field that, when applied to a region of the magnetic shape memory pipe, alters the inner diameter of the region of the magnetic shape memory pipe.

An exemplary embodiment of the present invention provides a stylus pen including: a body; a conductive tip configured to be exposed from an inside of the body to an outside thereof; and a resonance circuit connected to the conductive tip to resonate an electrical signal transferred from the conductive tip. An inductor unit of the resonance circuit includes a ferrite core and a coil wound in multiple layers over at least a portion of the ferrite core. The ferrite core includes nickel, and the coil can be formed by a litz wire with adjacent winding layers that are wound to be inclined in a zigzag form.

A system may include a magnetic shape memory (MSM) element having a first end and a second end, where a longitudinal axis of the MSM element extends from the first end to the second end. The system may further include a permanent magnet having a first pole and a second pole, where the first pole and the second pole are aligned perpendicularly to the longitudinal axis of the MSM element. The system may also include a first electromagnet directed to the first end of the MSM element and a second electromagnet directed to the second end of the MSM element.

A production method for a magnetic material, which is expressed by a chemical structure formula Fe(Al.sub.1-xMn.sub.x).sub.2O.sub.4, where 0<x<1, and exhibits ferromagnetism, includes: preparing a mixed aqueous solution by dissolving, in distilled water, Fe nitrate, Al nitrate, and an oxide including Mn, the Fe nitrate, the Al nitrate, and the oxide being parent materials; preparing a metal-citric acid complex by mixing citric acid and ethylene glycol with the mixed aqueous solution; obtaining a precursor by boiling the metal-citric acid complex to a gel and drying the gel; and obtaining the magnetic material by sintering the precursor.

A solenoid pipe is formed of a ferromagnetic material containing 15-18 mass % of Cr, an electromagnetic coil, and a valve body. The pipe includes a reform portion, having a composition in which a component of the ferromagnetic material is mixed with a component of a Ni-containing material. A ratio, e/d, of a maximum deformation, e, of an outer circumferential surface side of the reform portion of the pipe with respect to a thickness, d, of the pipe near the reform portion is 0.5 or less, and a ratio, c/d, of a maximum deformation, c, of an inner circumferential surface side of the reform portion of the pipe with respect to the thickness, d, of the pipe is 0.5 or less.

A wireless charging coil apparatus is provided. In one embodiment, the apparatus comprises a substrate; a wireless charging coil disposed on said substrate, said wireless charging coil comprising a coil section and a connection terminal; wherein said connection terminal comprises an enlarged end and a connection hole, said enlarged end having an outer width and said connection hole having an inner width, said inner width being less than said outer width, said substrate having an etched portion partially exposing said connection terminal on a bottom side. The apparatus of the present invention reduces the overall thickness thereof, while also maintaining a high operating performance, having good cooling performance and provides a robust connection.

The present embodiment relates to a coil device and a wireless charging device including the same. The coil device according to the present embodiment includes: a coil wound to form a hollow portion; and a shielding housing including a flat part on which the coil is disposed, an inner wall corresponding to a shape of the hollow portion, and an outer wall corresponding to an outer circumferential shape of the coil. The inner wall protruding from the flat part on which the coil is disposed may have a height of 0 to 1.5 times a height of the coil. An inductance of the coil may have a range of 9.2 H to 12.26 H.

An inductor component includes a composite body that includes a plurality of composite layers each including a composite material of an inorganic filler and a resin; and a plurality of spiral wires that each are stacked on the composite layer, the spiral wires each being covered with the other composite layer. The average particle diameter of the inorganic filler is equal to or smaller than 5 m, the wire pitch of the spiral wires is equal to or smaller than 10 m, and the interlayer pitch between adjacent spiral wires is equal to or smaller than 10 m.

In a laser processing apparatus for refining magnetic domains of a grain-oriented electromagnetic steel sheet by setting a laser beam to be focused on the grain-oriented electromagnetic steel sheet and scanned in a scanning direction, the laser beam focused on the grain-oriented electromagnetic steel sheet is linearly polarized light, and the angle between the linear polarization direction and the scanning direction is equal to or higher than 0 and lower than 45.

The present disclosure provides a coated iron particle, or reaction product thereof, comprising an iron particle and a thiol coating disposed on the iron particle. The present disclosure further provides compositions comprising a coated iron particle and a polymer or adhesion promoter. The present disclosure further provides components having a surface and a composition of the present disclosure disposed on the surface. Methods for passivating an iron particle can include introducing a passivation agent having one or more sulfur moieties into a solvent to form a passivation solution; and contacting an iron particle with the passivation solution to form a coated iron particle. Methods for passivating an iron particle can include introducing an iron particle into a solvent to form an iron particle solution; and contacting a passivation agent having one or more sulfur moieties with the iron particle solution to form a coated iron particle.