Patents by Inventor Kevin John Duddy

Kevin John Duddy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • GMR spin valve sensor with ion implanted areas
    Publication number: 20040027732
    Abstract: A magnetic read head for use in a magnetic data storage and retrieval system is disclosed. The read head is typically a giant magnetoresistive (GMR) spin valve read sensor with a portion of the GMR spin valve read sensor implanted with ions. The implanted ions improve the GMR sensor's sensitivity to changes in resistance by increasing the resistance of inefficient or ineffective portions of the sensor. The invention is also directed to methods of making GMR read sensors.
    Type: Application
    Filed: October 17, 2002
    Publication date: February 12, 2004
    Inventors: Brian Kelly, Kevin John Duddy, Alan Johnston, William O'Kane