SPIRE CORPORATION Patent applications |
Patent application number | Title | Published |
20130328587 | LED SOLAR SIMULATOR - An LED based solar simulator and method. An emitter plane includes an array of quarter panels below a test plane. Each quarter panel includes multiple close pitch LEDs of different wavelengths in an array, a plurality of LEDs for select wavelengths per quarter panel, and one or more different wavelength LEDs in a plurality of class A wavelength intervals in order to more closely match the solar spectrum. | 12-12-2013 |
20130114239 | SOLAR SIMULATOR FILTER COLLIMATOR - A solar simulator includes a source producing radiation and filter material for the source having a higher transmittance at predetermined wavelengths for radiation incident at non-normal angles to the filter material. A collimator between the source and the filter material absorbs a fraction of the non-normal incident radiation to lower the amount of radiation at the predetermined wavelengths reaching the filter material. In one example, the collimator is a metallic honeycomb substrate. The collimator may also include baffles. | 05-09-2013 |
20120061622 | SURFACE-ACTIVATION OF SEMICONDUCTOR NANOSTRUCTURES FOR BIOLOGICAL APPLICATIONS - The present invention provides means and methods for producing surface-activated semiconductor nanoparticles suitable for in vitro and in vivo applications that can fluoresce in response to light excitation. Semiconductor nanostructures can be produced by generating a porous layer in semiconductor substrate comprising a network of nanostructures. Prior or subsequent to cleavage from the substrate, the nanostructures can be activated by an activation means such as exposing their surfaces to a plasma, oxidation or ion implantation. In some embodiments, the surface activation renders the nanostructures more hydrophilic, thereby facilitating functionalization of the nanoparticles for either in vitro or in vivo use. | 03-15-2012 |
20110237015 | NANOPHOTOVOLTAIC DEVICES - The present invention provides nanophotovoltaic devices having sizes in a range of about 50 nm to about 5 microns, and method of their fabrication. In some embodiments, the nanophotovoltaic device includes a semiconductor core, e.g., formed of silicon, sandwiched between two metallic layers, one of which forms a Schottky barrier junction with the semiconductor core and the other forms an ohmic contact therewith. In other embodiment, the nanophotovoltaic device includes a semiconductor core comprising a p-n junction that is sandwiched between two metallic layers forming ohmic contacts with the core. | 09-29-2011 |
20100297803 | NANOPHOTOVOLTAIC DEVICES - The present invention provides nanophotovoltaic devices having sizes in a range of about 50 nm to about 5microns, and method of their fabrication. In some embodiments, the nanophotovoltaic device includes a semiconductor core, e.g., formed of silicon, sandwiched between two metallic layers, one of which forms a Schottky barrier junction with the semiconductor core and the other forms an ohmic contact therewith. In other embodiment, the nanophotovoltaic device includes a semiconductor core comprising a p-n junction that is sandwiched between two metallic layers forming ohmic contacts with the core. | 11-25-2010 |
20090209940 | FUSION MANUFACTURE OF MULTI-LUMEN CATHETERS - Methods of forming catheters are disclosed, together with methods of forming split tip catheters. In one aspect of the invention, the manufacturing methods can include the steps of: providing first and second catheter tubes each having a substantially D-shaped cross-section, and attaching at least a portion of longitudinal lengths of the first and second catheter tubes along flat surfaces of the first and second catheter tubes to form a dual lumen catheter assembly. The tubes can be fused along at least about 10%, preferably along at least about 50%, more preferably in some applications along at least about 70%, 80% or 90% of the longitudinal length. | 08-20-2009 |
20090205189 | MANUFACTURE OF FIXED TIP CATHETERS - Methods of forming catheters are disclosed, together with methods of forming fixed tip catheters. In one aspect of the invention, the manufacturing methods can include the steps of: providing first and second catheter tubes, a distal end of the first catheter tube extending a longitudinal length beyond a distal end of the second catheter tube, and attaching a flow diverting structure to an outside surface of the first catheter tube between the distal ends of the first and second catheter tubes. The flow diverting structure can be oriented on the first catheter tube to divert fluid flowing through an inner lumen of the second catheter tube. | 08-20-2009 |
20090204079 | CATHETERS WITH ENLARGED ARTERIAL LUMENS - Asymmetric lumen catheter devices are disclosed. In one aspect of the invention, a catheter assembly includes a first catheter tube having a first lumen extending longitudinally through the first catheter tube and a second catheter tube attached to the first catheter tube. The second catheter tube extends a longitudinal length beyond a distal end of the first catheter tube and has a second lumen extending longitudinally therethrough. The first lumen has a larger cross-sectional size than the second lumen. | 08-13-2009 |
20090204052 | MANUFACTURE OF SPLIT TIP CATHETERS - Multi-lumen catheter devices having at least one split-tipped end are disclosed, together with methods of forming such split tip catheters. In one aspect of the invention, the manufacturing methods can include the steps of: providing a catheter body having at least a first and a second internal lumen extending longitudinally through the catheter body; removing a distal portion of the catheter body to form a first distal tip segment such that the first lumen extends longitudinally within this tip segment beyond the second lumen; and joining a second lumen tip segment to the catheter body in communication with the second lumen. The second tip segment can be joined to the catheter body such that it is at least partially separated from the first tip segment and, in some embodiments, preferably diverges at an angle relative to the first tip segment. | 08-13-2009 |
20090165852 | NANOPHOTOVOLTAIC DEVICES - The present invention provides nanophotovoltaic devices having sizes in a range of about 50 nm to about 5 microns, and method of their fabrication. In some embodiments, the nanophotovoltaic device includes a semiconductor core, e.g., formed of silicon, sandwiched between two metallic layers, one of which forms a Schottky barrier junction with the semiconductor core and the other forms an ohmic contact therewith. In other embodiment, the nanophotovoltaic device includes a semiconductor core comprising a p-n junction that is sandwiched between two metallic layers forming ohmic contacts with the core. | 07-02-2009 |
20090118701 | METHODS AND APPARATUS FOR INSERTING MULTI-LUMEN SPLIT-TIP CATHETERS INTO A BLOOD VESSEL - Methods and apparatus are disclosed for inserting flexible, multi-lumen catheters into blood vessels, and in particular, for inserting flexible, split-tip catheters into blood vessels. The invention accomplishes these objects by temporarily stiffening each catheter lumen and tip independently through use of intra-catheter stiffener elements disposed within the catheter lumens. This provides means for advancing the catheter/stiffeners assembly through a subcutaneous tunnel, and over a plurality of guidewires until a distal tip of the catheter is at a desired position within the vessel. The intra-catheter stiffener elements are sufficiently stiffening to allow advancing the catheter over guidewires, but sufficiently flexible to allow bending and looping of the catheter for proper placement within the vessel. | 05-07-2009 |
20080214980 | SPLITABLE TIP CATHETER WITH BIORESORBABLE ADHESIVE - Splitable-tip catheters are disclosed with bioresorbable adhesive to provide spatial separation of distal tip elements during use. The invention can be particularly useful in hemodialysis applications where it is desirable to separate blood extraction and return lumens. The adhesive facilitates insertion of the distal end of the catheter as an assembly, e.g., into a blood vessel using a single guidewire, while the bioresorbable nature of the adhesive allows the tip elements to separate in vivo. | 09-04-2008 |