1694 results about "Open structure" patented technology

This invention relates to flexible, transparent and conductive coatings and films formed using single wall carbon nanotubes and polymer binders. Preferably, coatings and films are formed from carbon nanotubes (CNT) applied to transparent substrates forming one or multiple conductive layers at nanometer level of thickness. Polymer binders are applied to the CNT network coating having an open structure to provide protection through infiltration. This provides for the enhancement of properties such as moisture resistance, thermal resistance, abrasion resistance and interfacial adhesion. Polymers may be thermoplastics or thermosets, or any combination of both. Polymers may also be insulative or inherently electrical conductive, or any combination of both. Polymers may comprise single or multiple layers as a basecoat underneath a CNT coating, or a topcoat above a CNT coating, or combination of the basecoat and the topcoat forming a sandwich structure. Binder coating thickness can be adjusted by changing binder concentration, coating speed and/or other process conditions. Resulting films and articles can be used as transparent conductors for flat panel display, touch screen and other electronic devices.

This invention relates to flexible, transparent and conductive coatings and films formed using carbon nanotubes (CNT) and, in particular, single wall carbon nanotubes, with polymer binders. Preferably, coatings and films are formed from carbon nanotubes applied to transparent substrates forming one or multiple conductive layers at nanometer level of thickness. Polymer binders are applied to the CNT network coating having an open structure to provide protection through infiltration. This provides for enhancement of properties such as moisture resistance, thermal resistance, abrasion resistance and interfacial adhesion. Polymers may be thermoplastics or thermosets, or a combination thereof. Polymers may also be insulative or inherently electrical conductive, or any combination of both. Polymers may comprise single or multiple layers as a basecoat underneath a CNT coating, or a topcoat above a CNT coating, or combination of the basecoat and the topcoat forming a sandwich structure. A fluoropolymer containing binder, which is a solution of one fluoropolymer or a blend of fluoropolymers, which may be formulated with additives, is applied onto a carbon nanotube-based transparent conductive coating at nanometer level of thickness on a clear substrate such as PET and glass. The fluoropolymers or blend can be either semi-crystalline (with low level of crystallinity) or amorphous, preferably to be amorphous with low refraction index. Binder coating thickness can be adjusted by changing binder concentration, coating speed and/or other process conditions. This binder coating significantly improves optical transparency, and also maintain or increases conductivity of the CNT-based coating. With other benefits such as abrasion, thermal and moisture resistance, this binder coating and the resulting products is used for display and electronic applications.

A therapy delivery system having an open architecture and method of providing thereof are disclosed. The present invention provides a therapy dosage module having a control algorithm that can be replaced with a predefined or independently defined control algorithm. The tools necessary to create and test such control algorithms in the therapy dosage module in a simulated environment before implementing it in a live therapy system are also disclosed.

The invention is directed to a method and device for routing, mixing, or reacting droplets or liquid microstreams along the surface of a flat substrate. The flow of liquid microstreams or microdroplets along designated pathways is confined by chemical surface patterning. Individually addressable heating elements, which are embedded in the substrate, can be used to generate flow via thermocapillary effects or to trigger or quench chemical reactions. The open architecture allows the liquid to remain in constant contact with the ambient atmosphere. The device can be used for microfluidic applications or as a surface reactor or biosensor, among other applications.

A medical device is provided and includes a thermal ablation catheter and a deployable cage assembly for use in thermal ablation therapy. The deployable cage assembly includes a plurality of arms, each of which has a pair of opposed ends attached to the thermal ablation catheter. Each of the arms is movable from a relaxed configuration to a deployed configuration. When relaxed, the arms are substantially proximate to the thermal ablation catheter. When deployed, the arms cooperate with each other to form an open structure which extends radially outward from the thermal ablation catheter. The thermal ablation device also includes a distensible bladder that serves as an endocervical seal.

A method and apparatus for producing particles, the apparatus includes a solution source that supplies a solution, and a fluid source that supplies a fluid. The solution includes a solvent and a solute. A mixer receives the solution and the fluid from the sources, and mixes the solution and the fluid together to form a mixture. The mixture is supplied from the mixer to an expansion assembly at first pressure. The expansion assembly sprays and expands the mixture substantially simultaneously to form frozen droplets, and preferably to form a low-density powder of frozen droplets. A freeze-dry apparatus sublimes the solvent from the particles. A high mass-transfer rate and a uniform open-structure of the powder bed enhances the freeze-drying process. Solid particles having a controlled size distribution are obtained. The particles preferably have a hollow or porous morphology suitable for differing drug delivery applications to include aerosol formulations.

The invention discloses a GaN-based flip-chip light-emitting diode with double reflecting layers and a preparation method thereof, which adopts a dual-reflection structure with the combination of a distributed Bragg reflecting layer and a metal reflecting layer, fully plays the excellent reflectivity of the reflecting layers and greatly improves the luminous efficiency of the light-emitting diode; and an open structure is produced in the distributed Bragg reflecting layer for filling the metal reflecting layer, thereby forming the electric conduction function and avoiding the occurrence of phenomenon that the reflectivity of the metal reflecting layer is reduced due to mutual diffusion of the metal reflecting layer in the traditional flip-chip light-emitting diode and other metal electrodes.

Abrasive articles possessing a highly open (porous) structure and uniform abrasive grit distribution are disclosed. The abrasive articles are fabricated using a metal matrix (e.g., fine nickel, tin, bronze and abrasives). The open structure is controlled with a porosity scheme, including interconnected porosity (e.g., formed by leaching of dispersoid), closed porosity (e.g., induced by adding a hollow micro-spheres and/or sacrificial pore-forming additives), and/or intrinsic porosity (e.g., controlled via matrix component selection to provide desired densification). In some cases, manufacturing process temperatures for achieving near full density of metal bond with fillers and abrasives, are below the melting point of the filler used, although sacrificial fillers may be used as well. The resulting abrasive articles are useful in high performance cutting and grinding operations, such as back-grinding silicon, alumina titanium carbide, and silicon carbide wafers to very fine surface finish values. Techniques of use and manufacture are also disclosed.

A Fabry-Perot cavity comprised of three-dimensional photonic crystal structures is disclosed. The self-assembly of purified and highly monodispersed microspheres is one approach to the successful operation of the device for creating highly ordered colloidal crystal coatings of high structural and optical quality. Such colloidal crystal film mirrors offer high reflection with low losses in the spectral window of the photonic band gap that permit Fabry-Perot resonators to be constructed with high resolving power, for example, greater than 1000 or sharp fringes that are spectrally narrower than 1.0 nm. The three-dimensional photonic crystals that constitute the Fabry-Perot invention are not restricted to any one fabrication method, and may include self-assembly of colloids, layer-by-layer lithographic construction, inversion, and laser holography. Such photonic crystal Fabry-Perot resonators offer the same benefits of high reflection and narrow spectral band responses available from the use of multi-layer dielectric coatings. However, the open structure of three-dimensional photonic crystal films affords the unique ability for external media to access the critical reflection layers and dramatically alter the Fabry-Perot spectrum, and provide means for crafting novel laser, sensor, and nonlinear optical devices. This open structure enables the penetration of gas and liquid substances, or entrainment of nano-particles or biological analytes in gases and liquids, to create subtle changes to the colloidal mirror responses that manifest in strong spectral responses in reflection and transmission of the collective Fabry Perot response.

Surveillance system for detecting the position, movement, nature of one or more objects and even communicate with it, that is adaptive to any extent and suitable for any mobile or fixed structure and even for persons, because of its flexible open architecture, which is fully modular to develop self-contained compact radar devices of special performances when working either autonomously, like conventional video-cameras nevertheless operating also with microwaves and therefore called microwave-cameras or radar-cameras, or jointly to form more complex interactive systems.

The arc welding robot control platform with automatic visual weld seam tracing function includes a controller to control the robot, a robot to weld with the movable welding torch, a computer to calculate the parameters of the robot and control the robot via the controller, a laser to send planar laser beam to the welded workpiece, a CCD camera fixed to end of the robot to obtain the image formed by the planar laser beam to light the welded workpiece and to feed the picked image via video wire to the computer for processing. The present invention has opened structure system and can control various industrial robots, servo controller and video device for different functions.

A implantable prosthesis having an external surface at least a portion of which is an open-cell structure is made by providing an implantable member having a surface applying a first layer of elastomer to the surface, applying a first layer of particles to the first layer of elastomer, applying a second layer of elastomer to the first layer of particles, applying a second layer of particles to the second layer of elastomer, curing the layers of elastomer, and removing the particles to form an external surface at least a portion of which is an open-cell structure.

Electrostatic breakdown is avoided during fabrication of individual semiconductor devices using a semiconductor aggregate substrate. The semiconductor aggregate substrate is comprised of a large wafer. A plurality of sections are provided on the surface of the wafer, which are divided by division lines. A display active matrix circuit is integrally formed in each of the segments through normal IC production processing. Guard ring patterns are provided so that they surround the individual display active matrix circuits. A connection pattern is also provided for commonly connecting the guard ring patterns adjoining each other through the division lines. The connection pattern has opening structures for dealing with an external overcurrent on both sides of the division lines. The opening structures are constituted by, for example fuse patterns.