Patents by Inventor Christopher Gene Dunn

Christopher Gene Dunn 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).

  • Low impedance, high bandwidth disk drive suspension circuit
    Patent number: 8982512
    Abstract: A low impedance, low crosstalk disk drive suspension circuit has multiple traces carrying a first polarity of a differential signal, interleaved with multiple traces carrying the second polarity of a differential signal. Each pair of conductors consisting of a trace of the first polarity and a trace of the second polarity may cross over each other at multiple crossover points. The crossover connections may utilize a second layer of copper trace conductors over the first and main layer, or alternatively the crossover connections may utilize an isolated portion of the suspension substrate.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: March 17, 2015
    Assignee: Magnecomp Corporation
    Inventors: Christopher Schreiber, Christopher Gene Dunn
  • Low impedance, high bandwidth disk drive suspension circuit
    Patent number: 8553364
    Abstract: A low impedance, low crosstalk disk drive suspension circuit has multiple traces carrying a first polarity of a differential signal, interleaved with multiple traces carrying the second polarity of a differential signal. Each pair of conductors consisting of a trace of the first polarity and a trace of the second polarity may cross over each other at multiple crossover points. The crossover connections may utilize a second layer of copper trace conductors over the first and main layer, or alternatively the crossover connections may utilize an isolated portion of the suspension substrate.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: October 8, 2013
    Assignee: Magnecomp Corporation
    Inventors: Christopher Schreiber, Christopher Gene Dunn
  • Disk drive gimbal having a stable pitch static attitude and related method of manufacture
    Patent number: 8085506
    Abstract: A gimbal, a disk drive suspension that includes the gimbal, and a related method of manufacture, wherein the gimbal is configured to be coupled between a disk drive slider and a disk drive load beam. The gimbal includes a strut having a buss and a projection that is coupled to the buss. A combination of the projection and the buss define a gap.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: December 27, 2011
    Assignee: Magnecomp Corporation
    Inventors: Kuen Chee Ee, Christopher Gene Dunn, Keith Allan Vanderlee, Peter Sung Hahn
  • High bandwidth flexure for hard disk drives
    Patent number: 8004798
    Abstract: A disk drive flexure has a pattern of voids in the ground plane in the area directly underneath the read and write bond pads, in order to adjust the respective impedances of the read and write bond pad pairs to match the impedances of the read and write transducers and the signal trace pairs to and from the transducers. The resulting impedance matched bond pads increase the effective signal bandwidth of the flexure and its electrical connections, decreasing the probability of error at high signal speeds and increasing the maximum data rate through the suspension.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: August 23, 2011
    Assignee: Magnecomp Corporation
    Inventor: Christopher Gene Dunn