Patents by Inventor Pavel Stepanov

Pavel Stepanov 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).

  • Patent number: 10900135
    Abstract: Disclosed embodiments provide a method and apparatus for continuous production of micro/nanoscale particles using roll-to-roll manufacturing in combination with electroplating. The roll-to-roll process can move a mechanically flexible reel stock material along rotating elements designed to position the material for various additive, subtractive, and modification processes. In accordance with at least one embodiment, processes applied at various stations may include sputtering, electroplating, and/or etching.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: January 26, 2021
    Assignee: Weinberg Medical Physics, Inc.
    Inventors: Irving N. Weinberg, Lamar Odell Mair, Pavel Stepanov
  • Patent number: 9995810
    Abstract: A magnetic field generator includes a power source and a segmented or un-segmented coil connected to the power source to generate a time-varying magnetic field. Energy is applied to the coil so that the coil generates a time-varying magnetic field gradient with a magnitude of at least 1 milliTesla per meter and a rise-time of less than 1000 microseconds. The coil may be comprised of overlapping, non-overlapping or partially overlapping coil segments that may individually energized to further improve the operating characteristics of the coil to further decrease bio-effects in magnetic resonance imaging through the use of reduced pulse lengths and multi-phasic magnetic gradient pulses.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: June 12, 2018
    Assignee: Weinberg Medical Physics Inc
    Inventors: Irving N. Weinberg, Pavel Stepanov
  • Patent number: 9903922
    Abstract: A magnetic field generator includes a power source and a segmented or un-segmented coil connected to the power source to generate a time-varying magnetic field. Energy is applied to the coil so that the coil generates a time-varying magnetic field gradient with a magnitude of at least 1 milliTesla per meter and a rise-time of less than 1000 microseconds. The coil may be comprised of overlapping, non-overlapping or partially overlapping coil segments that may individually energized to further improve the operating characteristics of the coil to further decrease bio-effects in magnetic resonance imaging through the use of reduced pulse lengths and multi-phasic magnetic gradient pulses.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: February 27, 2018
    Assignee: Weinberg Medical Physics, Inc.
    Inventors: Irving N. Weinberg, Pavel Stepanov
  • Publication number: 20170226649
    Abstract: Disclosed embodiments provide a method and apparatus for continuous production of micro/nanoscale particles using roll-to-roll manufacturing in combination with electroplating. The roll-to-roll process can move a mechanically flexible reel stock material along rotating elements designed to position the material for various additive, subtractive, and modification processes. In accordance with at least one embodiment, processes applied at various stations may include sputtering, electroplating, and/or etching.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 10, 2017
    Inventors: Irving N. Weinberg, Lamar Odell Mair, Pavel Stepanov
  • Patent number: 9694196
    Abstract: An apparatus and method are utilized to transiently implement diamagnetic behavior in both permanently and transiently magnetized particles.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: July 4, 2017
    Assignee: WEINBERG MEDICAL PHYSICS INC
    Inventors: Irving N. Weinberg, Aleksandar Nelson Nacev, Pavel Stepanov
  • Publication number: 20170168125
    Abstract: A magnetic field generator includes a power source and a segmented or un-segmented coil connected to the power source to generate a time-varying magnetic field. Energy is applied to the coil so that the coil generates a time-varying magnetic field gradient with a magnitude of at least 1 milliTesla per meter and a rise-time of less than 1000 microseconds. The coil may be comprised of overlapping, non-overlapping or partially overlapping coil segments that may individually energized to further improve the operating characteristics of the coil to further decrease bio-effects in magnetic resonance imaging through the use of reduced pulse lengths and multi-phasic magnetic gradient pulses.
    Type: Application
    Filed: February 21, 2017
    Publication date: June 15, 2017
    Inventors: Irving N. WEINBERG, Pavel STEPANOV
  • Publication number: 20160247293
    Abstract: A system and method to perform motion tracking and motion-corrected image reconstruction in the field of medical imaging in general and Positron Emission Tomography in particular.
    Type: Application
    Filed: February 24, 2016
    Publication date: August 25, 2016
    Inventors: David Beylin, Sergey Anishchenko, Mark F. Smith, Pavel Stepanov, Alex Stepanov, Valery Zavarzin, Stephen Schaeffer, Irving N. Weinberg
  • Patent number: 9380959
    Abstract: An apparatus and method direct nanoparticles in a body part under imaging guidance using at least one electromagnet configured and operable to create a magnetic field gradient used to direct the nanoparticles, wherein, the magnetic field gradient used to direct the nano-particles does not substantially interfere with the use of magnetic field gradients whose purpose is to image the body part.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: July 5, 2016
    Assignee: WEINBERG MEDICAL PHYSICS LLC
    Inventors: Irving N. Weinberg, Pavel Stepanov
  • Publication number: 20140309479
    Abstract: An apparatus and method are utilized to transiently implement diamagnetic behavior in both permanently and transiently magnetized particles.
    Type: Application
    Filed: February 18, 2014
    Publication date: October 16, 2014
    Applicant: WEINBERG MEDICAL PHYSICS LLC
    Inventors: Irving N. WEINBERG, Aleksandar Nelson NACEV, Pavel STEPANOV
  • Patent number: 8816287
    Abstract: Inorganic semiconducting materials such as silicon are used as a host matrix in which quantum dots reside to provide a radiation detector or energy converter. The quantum dot material may be disposed by incorporating materials sensitive to neutron detection such as boron-containing compounds, or the use of methods such as chemical vapor deposition or atomic layer deposition to insert the quantum dot material. Electrodes may be extended deep into the host matrix material to improve efficiency. Likewise, the host matrix may be machined to create pores in the matrix material. Further, amplification and signal-processing structures may be used in close proximity to the radiation-sensitive region of the device.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: August 26, 2014
    Assignee: Weinberg Medical Physics LLC
    Inventors: Irving N. Weinberg, Pavel Stepanov, Mario G. Urdaneta
  • Publication number: 20130271136
    Abstract: A magnetic field generator includes a power source and a segmented or un-segmented coil connected to the power source to generate a time-varying magnetic field. Energy is applied to the coil so that the coil generates a time-varying magnetic field gradient with a magnitude of at least 1 milliTesla per meter and a rise-time of less than 1000 microseconds. The coil may be comprised of overlapping, non-overlapping or partially overlapping coil segments that may individually energized to further improve the operating characteristics of the coil to further decrease bio-effects in magnetic resonance imaging through the use of reduced pulse lengths and multi-phasic magnetic gradient pulses.
    Type: Application
    Filed: June 14, 2013
    Publication date: October 17, 2013
    Inventors: Irving N. WEINBERG, Pavel STEPANOV
  • Patent number: 8466680
    Abstract: A magnetic field generator includes a power source and a segmented or un-segmented coil connected to the power source to generate a time-varying magnetic field. Energy is applied to the coil so that the coil generates a time-varying magnetic field gradient with a magnitude of at least 1 milliTesla per meter and a rise-time of less than 10 microseconds. The coil may be comprised of overlapping, non-overlapping or partially overlapping coil segments that may individually energized to further improve the operating characteristics of the coil to further decrease bio-effects in magnetic resonance imaging through the use of reduced pulse lengths and multi-phasic magnetic gradient pulses.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: June 18, 2013
    Assignee: Weinberg Medical Physics LLC
    Inventors: Irving Weinberg, Pavel Stepanov
  • Publication number: 20130146458
    Abstract: Disclosed embodiments assay for the presence of Ge-68, although disclosed embodiments can also be used for other radionuclide generators, with minimal adjustments.
    Type: Application
    Filed: January 10, 2013
    Publication date: June 13, 2013
    Applicants: Weinberg Medical Physics LLC
    Inventors: Weinberg Medical Physics LLC, Irving N. Weinberg, Pavel Stepanov, Mario G. Urdaneta, Roland Probst, Valera Zavarzin
  • Publication number: 20130046169
    Abstract: An apparatus and method direct nanoparticles in a body part under imaging guidance using at least one electromagnet configured and operable to create a magnetic field gradient used to direct the nanoparticles, wherein, the magnetic field gradient used to direct the nanoparticles does not substantially interfere with the use of magnetic field gradients whose purpose is to image the body part.
    Type: Application
    Filed: August 15, 2012
    Publication date: February 21, 2013
    Applicant: WEINBERG MEDICAL PHYSICS LLC
    Inventors: Irving N. WEINBERG, Pavel STEPANOV
  • Publication number: 20120261639
    Abstract: Inorganic semiconducting materials such as silicon are used as a host matrix in which quantum dots reside to provide an energy conversion device that may be used to convert various types of radiation to electricity.
    Type: Application
    Filed: July 11, 2011
    Publication date: October 18, 2012
    Applicant: WEINBERG MEDICAL PHYSICS LLC
    Inventors: Irving N. WEINBERG, Pavel STEPANOV, Mario G. URDANETA
  • Publication number: 20120175584
    Abstract: Inorganic semiconducting materials such as silicon are used as a host matrix in which quantum dots reside to provide a radiation detector or energy converter. The quantum dot material may be disposed by incorporating materials sensitive to neutron detection such as boron-containing compounds, or the use of methods such as chemical vapor deposition or atomic layer deposition to insert the quantum dot material. Electrodes may be extended deep into the host matrix material to improve efficiency. Likewise, the host matrix may be machined to create pores in the matrix material. Further, amplification and signal-processing structures may be used in close proximity to the radiation-sensitive region of the device.
    Type: Application
    Filed: July 11, 2011
    Publication date: July 12, 2012
    Applicant: WEINBERG MEDICAL PHYSICS LLC
    Inventors: Irving N. WEINBERG, Pavel STEPANOV, Mario G. URDANETA
  • Publication number: 20120092105
    Abstract: An electromagnetic structure is fabricated by additive manufacturing having at least one channel traversing the structure. In one embodiment, at least one form contains apertures and/or holes forming the channel and a liquid metal traverses the structure by the channel. Electrodes are provided to apply or extract electrical voltage or power to and/or from the liquid metal as well as a mechanism for propelling a portion of the liquid metal through the form. In an alternative embodiment, both the electrically insulating and the electrically conductive materials are solid and the channel is used for conducting a coolant instead of the liquid metal.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 19, 2012
    Applicant: WEINBERG MEDICAL PHYSICS LLC
    Inventors: Irving N. WEINBERG, Pavel STEPANOV, Mario URDANETA, William PETER
  • Publication number: 20110192984
    Abstract: Silicon drift detectors are produced for location and energy measurement as well as spectroscopic applications by depositing a single high quality dielectric film followed by deposition of at least one low quality dielectric film.
    Type: Application
    Filed: February 7, 2011
    Publication date: August 11, 2011
    Applicant: WEINBERG MEDICAL PHYSICS LLC
    Inventors: Mario Urdaneta, Pavel Stepanov, Irving WEINBERG
  • Publication number: 20110096966
    Abstract: A method and apparatus for assessing the time since demise of one or more tissue components, comprising a source of radiation to generate excitatory radiation toward a tissue component, the tissue component generating responsive radiation in response to the excitatory radiation, a sensor to receive the responsive radiation from the tissue component and create a signal indicating the rate of change (over time) of the responsive radiation, a processor connected to the sensor to receive the signal from the sensor, and wherein the processor evaluates the received signal and provides information whereby a user can assess the time since demise of the tissue component based on responsive radiation generated by the tissue component as a result of excitation of at least one intrinsic tissue component metabolic product.
    Type: Application
    Filed: December 7, 2010
    Publication date: April 28, 2011
    Inventors: Irving Weinberg, Mario Urdaneta, Pavel Stepanov
  • Publication number: 20110089947
    Abstract: A magnetic field generator includes a power source and a segmented or un-segmented coil connected to the power source to generate a time-varying magnetic field. Energy is applied to the coil so that the coil generates a time-varying magnetic field gradient with a magnitude of at least 1 milliTesla per meter and a rise-time of less than 10 microseconds. The coil may be comprised of overlapping, non-overlapping or partially overlapping coil segments that may individually energized to further improve the operating characteristics of the coil to further decrease bio-effects in magnetic resonance imaging through the use of reduced pulse lengths and multi-phasic magnetic gradient pulses.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Applicant: WEINBERG MEDICAL PHYSICS LLC
    Inventors: Irving Weinberg, Pavel Stepanov