Patents by Inventor Steven Johnson

Steven Johnson 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).

  • Publication number: 20080319318
    Abstract: A breast scanning system configured to scan a breast of a patient includes a table configured to receive the patient thereon. The table has an aperture formed therein configured to receive the breast of the patient pendant therethrough and positionable over and into a bath configured to contain a medium. An armature is movably disposable in the bath. The armature carries transducer arrays that are disposable in the bath, and configured to transmit and receive acoustic and/or ultrasound signals. A manual control is operatively coupled to the armature to manually move the armature and thus the transducer arrays within the bath.
    Type: Application
    Filed: May 14, 2008
    Publication date: December 25, 2008
    Inventors: Steven A. Johnson, Michael J. Berggren, David T. Borup, Barry K. Hanover, James W. Wiskin, Jeff Pattee
  • Publication number: 20080294043
    Abstract: Methods for imaging the internal structures of an object using an acoustic wave field are provided. In one aspect, for example, a method of imaging internals of a physical object using acoustic waves may include transmitting an acoustic wave field toward the object, receiving a resultant acoustic wave field with a receiver, where the resultant acoustic wave field is in response to the transmitted acoustic wave field reflected from or transmitted through the object, and determining a predicted resultant acoustic wave field derived from a model of the object. The method may also include determining a residual between the predicted resultant acoustic wave field and the resultant acoustic wave field, and back propagating the residual to determine corrections to the model of the object. In another aspect, the above recited steps may be further iterated to successively refine the model of the object over a number of iterations until a predefined condition is reached.
    Type: Application
    Filed: May 14, 2008
    Publication date: November 27, 2008
    Inventors: Steven A. Johnson, David T. Borup, James W. Wiskin
  • Patent number: 7457198
    Abstract: A method for detecting an object in a body of water by generating a plurality of signals and applying each signal to a separate submerged sonar node that is a part of an array of sonar nodes.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: November 25, 2008
    Assignees: Scientific Solutions, Inc., The United States of America as represented by the Secretary of the Navy
    Inventors: Peter Jonathan Stein, Amy Vandiver, Michael Richard Birmann, John Timothy Wood, Joseph Steven Johnson
  • Publication number: 20080092501
    Abstract: A filter element for removing contaminant from a dirty stream, such as an air filter element for removing and/or coalescing liquid contaminant from an incoming dirty air stream. The filter element has a polygonal shape, with radiused corners. Such a shape mitigates pleat bunching, reduces airflow resistance, thus increasing in the volume of incoming air when compared to conventional cylindrical filter elements having the same surface area and pleat heights. Examples of polygonal shapes include rectangular (including square) and triangular. The filter element may be tapered.
    Type: Application
    Filed: February 12, 2007
    Publication date: April 24, 2008
    Inventors: Timothy Sporre, Steven Johnson, Bruce Johnson, Michael Handley
  • Publication number: 20080064973
    Abstract: Disclosed is a system for the detection of cardiac events (a guardian system) that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using one or more detection algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the guardian system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means).
    Type: Application
    Filed: October 30, 2007
    Publication date: March 13, 2008
    Applicant: Angel Medical Systems
    Inventors: David Fischell, Tim Fischell, Jonathan Harwood, Robert Fischell, Steven Johnson
  • Publication number: 20080058660
    Abstract: Disclosed is a system for the detection of cardiac events (a guardian system) that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using one or more detection algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the guardian system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means).
    Type: Application
    Filed: October 30, 2007
    Publication date: March 6, 2008
    Applicant: Angel Medical Systems
    Inventors: David Fischell, Tim Fischell, Johnathan Harwood, Robert Fischell, Steven Johnson
  • Publication number: 20070297734
    Abstract: A system and a method for generating terahertz (THz) radiation are provided. The system includes a photonic crystal structure comprising at least one nonlinear material that enables optical rectification. The photonic crystal structure is configured to have the suitable transverse dispersion relations and enhanced density photonic states so as to allow THz radiation to be emitted efficiently when an optical or near infrared pulse travels through the nonlinear part of the photonic crystal.
    Type: Application
    Filed: June 19, 2007
    Publication date: December 27, 2007
    Inventors: Mihai Ibanescu, Evan Reed, Peter Rakich, Steven Johnson, Erich Ippen, John Joannopoulos, Marin Soljacic, Rafif Hamam
  • Publication number: 20070293775
    Abstract: Disclosed is a system for the detection of cardiac events that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using different algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means) which are activated after the ST segment of the electrogram exceeds a preset threshold.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 20, 2007
    Inventors: David Fischell, Tim Fischell, Jonathan Harwood, Robert Fischell, Steven Johnson
  • Publication number: 20070293778
    Abstract: Disclosed is a system for the detection of cardiac events that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using different algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means) which are activated after the ST segment of the electrogram exceeds a preset threshold.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 20, 2007
    Inventors: David Fischell, Tim Fischell, Jonathan Harwood, Robert Fischell, Steven Johnson
  • Publication number: 20070282200
    Abstract: A transmission wave field imaging method, comprising the transmission of an incident wave field into an object, the incident wave field propagating into the object and, at least, partially scattering. Also includes the measuring of a wave field transmitted, at least in part, through an object to obtain a measured wave field, the measured wave field based, in part, on the incident wave field and the object. Additionally, the processing of the measured wave field utilizing a recursive reconstruction algorithm to generate an image data set representing at least one image of the object.
    Type: Application
    Filed: September 9, 2005
    Publication date: December 6, 2007
    Inventors: Steven Johnson, David Borup, James Wiskin, Michael Berggren
  • Publication number: 20070256395
    Abstract: An air filter assembly for removing particulate matter from an incoming dirty air stream. The assembly includes a housing having an inlet, an outlet, a dirty air chamber and a clean air chamber and a non-cylindrical shaped elongated filter element arranged within the dirty air chamber constructed to remove particulate matter from an incoming air stream. A plurality of non-cylindrical filter elements are preferred. The non-cylindrical filter elements provide a decreased incoming air stream velocity when compared to conventional cylindrical filter elements having the same surface area. Alternately, the non-cylindrical filter elements allow an increase in the volume of incoming air when compared to conventional cylindrical filter elements having the same surface area.
    Type: Application
    Filed: May 9, 2007
    Publication date: November 8, 2007
    Applicant: Donaldson Company, Inc.
    Inventors: Kristofer Kosmider, Steven Johnson, Thomas Raether
  • Publication number: 20070250977
    Abstract: A catcher's leg protector having an adjustable foot and toe guard includes a shin guard for covering a wearer's shin, a foot and toe guard for covering a portion of a wearer's foot, and an adjustment mechanism for moving the foot and toe guard relative to the shin guard and locking the foot and toe guard in a fixed position. Various embodiments of the leg protector and associated method are provided.
    Type: Application
    Filed: April 28, 2006
    Publication date: November 1, 2007
    Inventors: Robin Brown, Jason Lee, Steven Johnson
  • Publication number: 20070249944
    Abstract: Disclosed is a system for the detection of cardiac events that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using different algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means) which are activated after the ST segment of the electrogram exceeds a preset threshold.
    Type: Application
    Filed: June 22, 2007
    Publication date: October 25, 2007
    Inventors: David Fischell, Tim Fischell, Jonathan Harwood, Robert Fischell, Steven Johnson
  • Publication number: 20070249947
    Abstract: Disclosed is a system for the detection of cardiac events that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using different algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means) which are activated after the ST segment of the electrogram exceeds a preset threshold.
    Type: Application
    Filed: June 22, 2007
    Publication date: October 25, 2007
    Inventors: David Fischell, Tim Fischell, Jonathan Harwood, Robert Fischell, Steven Johnson
  • Publication number: 20070244736
    Abstract: A system and method of managing tasks and organizations is provided herein.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 18, 2007
    Applicant: SNOWFLAKE ITM, INC.
    Inventor: Steven Johnson
  • Publication number: 20070232168
    Abstract: A panel had a first face and a second face, including a strike face portion having a first plurality of plies each containing fibers in a matrix material. There is a support portion adjacent to the strike face portion, the support portion containing a second plurality of plies each having fibers in a matrix material. Each ply is bound to an adjacent ply and the first fibers are lower-performing relative to the second fibers. Protection from a ballistic threat may be provided by providing such a panel with the strike face disposed toward the threat. In another aspect, a composite ballistic panel may contain fibers in a thermoplastic matrix material, to the substantial exclusion of thermosetting matrix materials.
    Type: Application
    Filed: December 15, 2006
    Publication date: October 4, 2007
    Applicant: Polystrand, Inc.
    Inventors: Edward Pilpel, Richard Holland, Steven Johnson
  • Patent number: D564981
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: March 25, 2008
    Inventor: Steven Johnson
  • Patent number: D564982
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: March 25, 2008
    Inventor: Steven Johnson
  • Patent number: D564983
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: March 25, 2008
    Inventor: Steven Johnson
  • Patent number: D566061
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: April 8, 2008
    Inventor: Steven Johnson