Advanced Materials Corporation

Suryanarayan G Sankar

Satoru Simizu

Brian J Zande

Arkady Margolin

Y Sean Cho

Richard T Obermyer

Richard T Obermeyer

A method of making iron nitride powder is provided. The method comprises the steps of: a) providing an iron-based starting material; b) reducing the starting material by heating the starting material in a fluidized bed reactor in the presence of a reducing agent; c) nitriding the material obtained from step (b) by contacting the material with a nitrogen source. Also provided is the iron nitride powder made by the above method.

Iron nitride powders for use in magnetic, electromagnetic, and microelectronic devices

A motor controller system ( ) for dc power source motors ( ) which includes a sensor device ( ) that operates to measure and generate a voltage signal from the motor current and the rate of change of said current, and a programmable input/output processor ( ) which receives voltage signals as input from the motor current, dc power source ( ) and/or motor ( ) and compares on or more of these voltage signals to one or more control parameters. Based upon these comparisons, the processor ( ) generates a pulse width modulation control signal, which triggers a switching mechanism ( ) and related interrupt service routing to make adjustments to the operational parameters of the motor by periodic interruption of the motor current.

Motor controller system for battery-powered motors

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Pittsburgh, PA, United States of America

Suryanarayan G Sankar