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Francis Johnson, Clifton Park US

Francis Johnson, Clifton Park, NY US

Patent application numberDescriptionPublished
20080223819Method and etchant for removing glass-coating from metal wires - An etchant for and method of removing a glass coating on a metallic wire is provided. The etchant comprises an acid solution having metal ions contained therein. The metal ions prevent the acid solution from pitting or damaging the metallic wire, while allowing the acid solution to effectively etch and remove the glass coating. In one embodiment, a fluorine-based acid solution can be used. In another embodiment, a glass coated, metal alloy microwire is etched and the metal ions added to the etchant are chosen to be the same as the majority constituent element in the metal alloy. The glass coating can be either removed in full or only partially removed.09-18-2008
20080283762Radiation detector employing amorphous material - A radiation detector is provided having an anode wire formed of an amorphous metal alloy. In one embodiment the radiation detector comprises a cathode assembly. The cathode assembly includes a main portion, a first end and a second end, where the first end opposes the second end. The cathode assembly also includes a radiation interacting material. An anode extends within the cathode assembly from the first end to the second end, and the anode is comprised of an amorphous metal alloy.11-20-2008
20100006185Amorphous metal alloy having high tensile strength and electrical resistivity - An amorphous metal alloy having high tensile strength and high electrical resistivity is provided. The amorphous metal alloy has the following chemical composition, in atomic percent: (Co01-14-2010
20100201469SOFT MAGNETIC MATERIAL AND SYSTEMS THEREWITH - A soft magnetic alloy including iron, cobalt, and at least one alloying addition including a platinum group metal, rhenium, or combinations thereof is provided. A device which is formed from such an alloy is also described.08-12-2010
20100243946METHODS OF MAKING HIGH RESISTIVITY MAGNETIC MATERIALS - A method to make a high resistivity permanent magnetic material comprising a non-conductive phase and a permanent magnetic phase microstructure, is disclosed. The method comprises the steps of, (a) disposing at least one layer comprising a non-conductive powder and at least one layer comprising a permanent magnetic powder adjacent to each other to obtain a multilayer, (b) compressing the multilayer, and (c) sintering the multilayer. A method to make a high resistivity soft magnetic material comprising a microstructure comprising a bulk metallic glass phase and a soft magnetic crystalline metal phase, is also disclosed.09-30-2010
20100244603ELECTRIC MACHINE - An electrical machine is disclosed. The electrical machine comprises a first discontinuous volume comprising a high resistivity soft magnetic material.09-30-2010
20110048031MAGNETO-CALORIC REGENERATOR SYSTEM AND METHOD - A regenerator having a thermal diffusivity matrix is presented. The thermal diffusivity matrix includes magneto-caloric material having multiple miniature protrusions intimately packed to form a gap between the protrusions. A fluid path is provided within the gap to facilitate flow of a heat exchange fluid and further provide efficient thermal exchange between the heat exchange fluid and magneto-caloric material. A first layer is disposed on each of the miniature protrusion to physically isolate the heat exchange fluid and magneto-caloric material, wherein the first layer further includes a soft magnetic material configured to simultaneously enhance a permeability and a thermal efficiency of the thermal diffusivity matrix.03-03-2011
20110073486AMORPHOUS METALLIC MATERIAL ELEMENTS AND METHODS FOR PROCESSING SAME - A method for altering a dimension of an element made of an amorphous metallic material is provided. The method includes providing an anode comprising the amorphous metallic material, wherein the amorphous metallic material comprises at least two primary constituents, providing a cathode disposed in a spaced-apart relationship with the anode, providing an electrolyte in contact with the anode and the cathode, and applying an electrical potential between the anode and the cathode.03-31-2011
20110139404HEAT EXCHANGER AND METHOD FOR MAKING THE SAME - A method is provided, the method including providing a first tubular structure that defines a first passage. A sacrificial material can be disposed in the first passage. A second tubular structure can be provided so as to be adjacent to the first tubular structure, with the second tubular structure defining a second passage within which can be disposed a granular material. The first and second tubular structures can be deformed together so as to reduce an external dimension of each of the first and second tubular structures. The sacrificial material can then be removed from the first passage.06-16-2011
20110154832COMPOSITION AND METHOD FOR PRODUCING THE SAME - Provided is a method that includes providing a granular first material (e.g., a magnetocaloric material) and a sinterable second material. The granular first material and the sinterable second material can be combined to form an aggregate. Once the aggregate has been formed, localized sintering of the aggregate can be performed, for example, such that, subsequent to localized sintering, the second material is substantially contiguous and binds the granular first material. Associated compositions and systems are also provided.06-30-2011

Patent applications by Francis Johnson, Clifton Park, NY US