223results about How to "Avoid many problems" patented technology

A catheter assembly and method of use comprises advancing a catheter having a rotatably mounted balloon relative to the primary guide wire to a vessel bifurcation along first and second guide wires.

An asymmetric supercapacitor has a positive electrode having a current collector an active material selected from the group consisting of manganese dioxide, silver oxide, iron sulfide and mixtures thereof, a negative electrode having a carbonaceous active material carbon and optional current collector, an electrolyte, and a separator plate. In a preferred embodiment at least one of the electrodes has nanostructured/nanofibrous material and in a more preferred embodiment, both electrodes have nanostructured/nanfibrous material. The electrolyte can be liquid or solid although liquid electrolytes are preferred.

The asymmetric supercapacitor has improved energy density by electrically coupling an electrode of high faradaic capacity such as one having manganese oxide (MnO₂) with an electrode such as carbon that stores charge through charge separation at the electric double-layer. The asymmetric supercapacitor also improves power density by using high surface area nanostructured/nanofibrous electrode materials.

This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using the loaded cellulose fibers. This invention discloses four aspects of the technology: fiber treatment, formulation, method and final product. This technology advantageously provides fiber cement building materials with the desirable characteristics of reduced water absorption, reduced rate of water absorption, lower water migration, and lower water permeability. This invention also impart the final products improved freeze-thaw resistance, reduced efflorescence, reduced chemical dissolution and re-deposition, and improved rot and fire resistances, compared to conventional fiber cement products. These improved attributes are gained without loss in dimensional stability, strength, strain or toughness.

A method of treating peripheral bronchopleural fistula using a collagen matrix hemostatic pad. The method includes the following steps: (1) selecting a peripheral bronchopleural fistula; (2) selecting a collagen matrix hemostatic pad having sufficient size to cover the fistula; (3) aligning the collagen matrix hemostatic pad completely over the fistula; and (4) securing the collagen matrix hemostatic pad to the tissue sorrounding the fistula.

A system and method involve tracking the location of objects within an area of interest using transmitted-reference ultra-wideband (TR-UWB) signals. The system includes at least three base stations communicating with a central processor, at least one mobile device and at least one fixed beacon transmitter of known location. The mobile device is equipped with a transmitter for transmitting a TR-UWB signal to a base station, which then determines a location of the mobile device based on time difference of arrival information between the beacon transmitters and mobile devices measured at all the base stations. Preferably, the area of interest includes a plurality of mobile devices each transmitting a delay-hopped TR-UWB signal according to a code-division multiple access scheme. The mobile devices may be attached to a patient and/or a medical asset within the hospital for tracking purposes. Additionally, patient medical information may be transmitted with the TR-UWB signals to allow patient monitoring to occur simultaneously with asset/patient tracking.

According to the present invention, there are provided a method for producing a human T cell, which comprises the steps of inducing an iPS cell from a human T cell, and differentiating the iPS cell into a T cell; a pharmaceutical composition comprising the T cell produced by the method; and a method for cell-based immunotherapy using the method.

A corrosion-resistant antifriction bearing is disclosed that includes a multi-layer corrosion protection system over a metallic substrate. The corrosion-resistant system may be applied to a single or multiple components of the bearing, including inner and outer rings, bearing elements, collars, and so forth. The system includes a nickel-phosphorous alloy plating layer applied by an autocatalytic process after surface preparation of the protected component. The surface preparation aids in adherence of the nickel-phosphorous alloy plating layer to the substrate. The preparation may include the application of rust inhibitors, liquid vapor honing, acid neutralizing, and so forth. Additional topcoat layers may be applied to the nickel-phosphorous alloy plating layer. These may include a chromate conversion coating and a polymeric topcoat layer. The polymeric topcoat layer, such as polytetrafluoroethylene, may include a UV marker to enable identification of the bearing when placed in service and throughout its useful life.

There is provided a plasma reactor with an internal transformer. The plasma reactor comprises: a plasma chamber with a gas inlet and a gas outlet, for providing a plasma discharging space; one or more core cylinder jackets for providing a core storage space in the plasma discharging space and forming a plasma centralized channel and a plasma decentralized channel by including one or more through-apertures; and one or more transformers each including a magnetic core with primary winding surrounding the through-aperture and installed in the core storage space, wherein the plasma discharging space comprises one or more first spatial regions to form the plasma centralized channel and one or more second spatial regions to form the plasma decentralized channel. In the plasma reactor, since the transformer is installed in the plasma chamber, energy is transferred with almost no loss from the transformer to the plasma discharging space and therefore the energy transfer efficiency is very high. Then, since most of gases flow through the first spatial region and the through-aperture inside the plasma chamber, most of active gases are generated in the plasma centralized channel. Consequently, the plasma reactor is very suitable for generating large amount of active gases. Further, even though the plasma chamber is composed of a conductive material, since no special insulating region needs to be formed, it is very easy to constitute the plasma chamber. Further, since the plasma chamber itself is sufficiently capable of forming an outer case, the plasma reactor is very simply manufactured.

A transparent display device includes a screen that has a plurality of light deflecting elements that are separated by transparent areas, and a projector device. The projector device is configured to direct light onto the light deflecting elements and not onto the transparent areas. The display device may include a first screen and a second screen separated longitudinally relative to the projector, wherein each screen respectively has a plurality of light deflecting elements. The projector is configured to direct light onto the light deflecting elements and not onto the transparent areas of the two screens such that light from the first and second light deflecting elements appear in different virtual depth planes. Alternatively, a single screen may have first and second pluralities of light deflecting elements of different optical powers, such that light from the first and second light deflecting elements appear in different virtual depth planes.

A polyvinyl acetal resin varnish which is so low in stimulus property, toxicity, environment-polluting property, offensive odor, and inflammability that no problem is caused in practical use, and which is high in safety, low in viscosity, and thus favorable in workability, and an application of the polyvinyl acetal resin varnish are provided. As an organic solvent for dissolving the polyvinyl acetal resin, there is used a nonaqueous solvent, preferably carbonate ester, and more preferably a mixed solvent composed of cyclic carbonate ester and chain carbonate ester, into which the polyvinyl acetal resin is evenly dissolved regardless of its type, resulting in varnish which is high in safety and low in viscosity. Since the varnish has an action of gelling the organic solvent, the varnish can be used as a gelling agent in various applications.

A system provides secure communications between a user operated device and a computerized device. The user operated device transfers an enable security message to the computerized device, and in response, the computerized device sends a first communications enablement message to the user operated device and displays a second communications enablement message on a display of the computerized device for viewing by a user operating the user operated device. The user operated device receives the first communications enablement message from the computerized device and receives the second communications enablement message from the user and establishes a secure communications session between the user operated device and the computerized device using the first communications enablement message and the second communications enablement message. The communications enablement messages can contain key material that enable encryption between the user operated device and the computerized device.

The invention relates to methods for determining the separate radio frequency gains for carriers in a multi-carrier transmitter of a radio transmission unit of a radio communications system. In order to enable a simple and accurate estimation of the gains, it is proposed to determine the individual gains (G₁–G_N) of the different carriers mathematically from different sets of powers (REF₁–REF_N) at some point in each single carrier unit and the corresponding total output powers of the transmitter. Alternatively, the relation of the powers of the different carriers to each other is determined just before the carriers are combined to a single multi-carrier signal. This relation is used for determining the contribution of the different carriers to the transmission power of the multi-carrier signal and for therefrom determining the radio frequency gains for the different carriers. The invention equally relates to corresponding radio transmission units and modules of such radio transmission units.

Complementary LDMOS and MOS structures and vertical PNP transistors capable of withstanding a relatively high voltage may be realized in a mixed-technology integrated circuit of the so-called "smart power" type, by forming a phosphorus doped n-region of a similar diffusion profile, respectively in: The drain zone of the n-channel LDMOS transistors, in the body zone of the p-channel LDMOS transistors forming first CMOS structures; in the drain zone of n-channel MOS transistors belonging to second CMOS structures and in a base region near the emitter region of isolated collector, vertical PNP transistors, thus simultaneously achieving the result of increasing the voltage withstanding ability of all these monolithically integrated structures. The complementary LDMOS structures may be used either as power structures having a reduced conduction resistance or may be used for realizing CMOS stages capable of operating at a relatively high voltage (of about 20V) thus permitting a direct interfacing with VDMOS power devices without requiring any "level shifting" stages. The whole integrated circuit has less interfacing problems and improved electrical and reliability characteristics.

The present invention provides a cleaning apparatus, a cleaning system and a cleaning method for a member used in the semiconductor field, excellent in cleaning capability and good in operation efficiency. The present invention is directed to a cleaning apparatus for cleaning the member used in the semiconductor field, which comprises: one nozzle or plural nozzles; and a jet mechanism for jetting a mist-like cleaning liquid (L1) with a high pressure from the one nozzle or the plural nozzles (52a) to the member (T) to be cleaned. The present invention is also directed to a cleaning system (30) for cleaning members used in the semiconductor field, which comprises: a loader section (40) for setting a member to be cleaned; an unloader section (70) for collecting the members; and a transport stage (80) for continuously transporting the member from the loader section to the unloader section, wherein a cleaning section (50) for cleaning the member with a mist-like cleaning liquid is provided on the transport stage, and the member is transported by the transport stage and is also cleaned in the cleaning section.

A cast piston, for an internal combustion engine or pump has an integral coolant ring gallery, with localized extensions, to achieve a coolant interchange with the gallery upon piston reciprocation. At least a portion of an extension lies generally parallel to the longitudinal piston axis and towards an upper end of the piston adjacent the working fluid. This provides an attendant increase in surface area exposed to coolant allowing either a decrease in operational piston temperature or an increase in allowable heat flow into the piston from a working fluid.

A hand tool for dentistry and/or dental prosthetics, having a grip part which defines a main axis and, in the direction of the main axis, comprises a front end area and a rear end area. The grip part has, in the front end area, an open receiving recess in which the collet element is arranged with an adjustable receiving diameter for receiving an object. The receiving diameter of the collet element can be modified by way of an actuating device. The collet element can be secured against rotation in the grip part.

Disclosed is an electrophotographic recording medium that contains a support and an olefin-maleic anhydride copolymer, wherein the olefin-maleic anhydride copolymer exists at least near the surface of the electrophotographic recording medium on which an image is recorded, and the electrophotographic recording medium is reusable; and a method for producing an electrophotographic recording medium, an image forming method, a method for repeatedly using an electrophotographic recording medium, and a method for repeatedly using an electrophotographic recording medium.

A loudspeaker diaphragm having a small overall height dimension, in which a dome portion has a sufficient rigidity and which is capable of realizing a stable loudspeaker operation, wherein the loudspeaker diaphragm can realize a desirable sound reproduction without noise, or the like, with a frequency response that is flat over a wide range. In the loudspeaker diaphragm of the present invention, the dome portion includes a concave dome portion formed at a center thereof, a convex dome portion along an outer periphery of the concave dome portion, a plurality of depressed ribs each extending in a radial direction across a boundary between the concave dome portion and the convex dome portion, a voice coil attachment portion along an outer periphery of the convex dome portion, and a plurality of protruding ribs extending in the radial direction across a boundary between the convex dome portion and the voice coil attachment portion, wherein each protruding rib is spaced apart in a circumferential direction from two adjacent depressed ribs.