Aspects of the invention include a computer peripheral device comprising an input element that operates based on a performance characteristic, an electropermanent magnet (EPM) assembly including a permanent magnet configured to generate a magnetic field and a magnetizing assembly configured to set an intensity of the magnetic field generated by the permanent magnet, and a magnetorheological (MR) material coupled to the input element. The MR material has a viscosity that changes based on the magnetic field and affects the performance characteristic of the input element.

Embodiments of the present disclosure describe a magnetic substrate including a cured magnetic ink and a cured polymer resin, wherein the cured magnetic ink includes a plurality of functionalized magnetic iron oxide nanoparticles and wherein the magnetic substrate is a freestanding magnetic substrate.

A method for manufacturing a mechanical timepiece part (1) including at least one functional area (2) wherein a lubricant (9) is able to be confined, the method including a step (10) of constructing a blank of the part (1) including the at least one functional area (2) and a step of transforming (12) the at least one functional area (2) into a magnetised functional area (2) capable of cooperating with the lubricant (9) when it has magnetic properties.

A method for manufacturing a mechanical timepiece part (1) including at least one functional area (2) wherein a lubricant (9) is able to be confined, the method including a step (10) of constructing a blank of the part (1) including the at least one functional area (2) and a step of transforming (12) the at least one functional area (2) into a magnetised functional area (2) capable of cooperating with the lubricant (9) when it has magnetic properties.

Integrated stator disk devices, systems, and methods for torque generation are provided. The resistive torque-generating device can include an integrated stator disk system including at least one metallic stator disk having a planar disk body, and at least one rotor disposed adjacent to the at least one metallic stator disk such that there are at least two shear areas formed by the at least one metallic stator disk and the at least one rotor; and magneto-rheological material disposed between portions of the at least one metallic stator disk and the at least one rotor. In some embodiments, the rotor(s) is/are a bent rotor(s), thereby providing for increased torque generation while fitting within tight space constraints.

The present invention describes a method to obtain magnetic aqueous ink composition for MICR (Magnetic Ink Character Recognition) ink jet printing comprising an aqueous dispersion of functionalized magnetic nanoparticles, humectant agents, solvents, biocide and water. It also allows obtaining stable inks for long periods with extremely high concentrations of magnetic nanoparticles with loading between 15% and 40% by mass and magnetic signals varying from 80 to 200%. Through the use and special combination of humectant agents, the present inventions increase the print head protection, by decreasing abrasiveness and increasing fluidity. The resulting ink has superior printing quality and increased service life of the printing system.

A composite magnetic material includes a powder and a resin. The powder has a main component containing Fe or Fe and Co. An average minor axis length in primary particles of the powder is 100 nm or less. A point satisfying (X, Y)=(σ/A.sub.v (%), (A.sub.v-σ)) on an XY coordinate plane is present within a region (including a boundary) surrounded by three points α(24.5, 6.7), β(72.0, 1.2), and γ(24.5, 1.2), in which an average of aspect ratios in the primary particles of the powder is set to A.sub.v, and a standard deviation of the aspect ratios in the primary particles of the powder is set to σ.

An optical element comprises a substrate and an optical surface formed on the substrate. At least one fluid-tight sealed chamber is embedded in the substrate and has a rheological fluid introduced therein for deforming the optical surface. An optical arrangement, such as an EUV lithography system, comprises at least one optical element as described above and a field generating device for generating an electromagnetic field. The electromagnetic field can be a time-varying electromagnetic field. The electromagnetic field can be a magnetic field. The electromagnetic field passes through the at least one chamber which contains the rheological fluid. A method for producing an optical element designed as described above is also provided.

A reconfigurable microfluidics multiplexing device for biological and chemical sample analysis which comprises: a cartridge comprising one or more sample fluid tracks (both horizontal and vertical) in a single plane, an array comprising one or more electronically programmable valves capable of being configured to alter fluid steering in the fluid tracks; a means for the array to interface with the fluid tracks; a means to control fluid flow in the fluid tracks; and a user interface to direct control of valves via control logic within the device; wherein, by the interface, valve positions are controllable and alterable.

A semiconductor package includes a VLSI semiconductor die and one or more output circuits connected to supply power to the die mounted to a package substrate. The output circuit(s), which include a transformer and rectification circuitry, provide current multiplication at an essentially fixed conversion ratio, K, in the semiconductor package, receiving AC power at a relatively high voltage and delivering DC power at a relatively low voltage to the die. The output circuits may be connected in series or parallel as needed. A driver circuit may be provided outside the semiconductor package for receiving power from a source and driving the transformer in the output circuit(s), preferably with sinusoidal currents. The driver circuit may drive a plurality of output circuits. The semiconductor package may require far fewer interface connections for supplying power to the die.