Patents by Inventor Payam Seifi

Payam Seifi 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).

  • Electron spin resonance for medical imaging
    Patent number: 9857447
    Abstract: A method includes generating, from an integrated oscillator circuit, an oscillating output signal and generating, by an integrated power amplifier (PA) circuit, an amplified oscillating output signal based on the oscillating output signal. The method further includes receiving, by integrated receiver amplifier circuit, an electron spin resonance (ESR) signal from biological samples that include a magnetic species and generating, by the integrated receiver amplifier circuit, an amplified ESR signal based on the received ESR signal. The method further includes receiving, by the integrated receiver amplifier circuit, an electron spin resonance (ESR) signal from magnetic nanoparticles that are loaded with drugs or attached to human cells.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 2, 2018
    Assignee: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Xuebei Yang, Charles Chen, Payam Seifi, Aydin Babakhani
  • INTERGRATED ELECTRON SPIN RESONANCE SPECTROMETER
    Publication number: 20170242091
    Abstract: An integrated electron spin resonance (ESR) circuit chip includes a chip substrate, a transmitter circuit, and a receiver circuit. The transmitter circuit and receiver circuit are disposed on the chip substrate. The transmitter circuit includes an oscillator circuit configured to generate an oscillating output signal and a power amplifier (PA) circuit configured to generate an amplified oscillating output signal based on the oscillating output signal. The receiver circuit receives an ESR signal from an ESR probe. The receiver circuit includes a receiver amplifier circuit configured to generate an amplified ESR signal based on the received ESR signal, a mixer circuit configured to receive the amplified ESR signal and to down-convert the amplified ESR signal to a baseband signal, and a baseband amplifier circuit configured to generate an amplified baseband signal based on the baseband signal.
    Type: Application
    Filed: May 10, 2017
    Publication date: August 24, 2017
    Applicant: William Marsh Rice University
    Inventors: Xuebei Yang, Charles Chen, Payam Seifi, Aydin Babakhani
  • Intergrated electron spin resonance spectrometer
    Patent number: 9689954
    Abstract: An integrated electron spin resonance (ESR) circuit chip includes a chip substrate, a transmitter circuit, and a receiver circuit. The transmitter circuit and receiver circuit are disposed on the chip substrate. The transmitter circuit includes an oscillator circuit configured to generate an oscillating output signal and a power amplifier (PA) circuit configured to generate an amplified oscillating output signal based on the oscillating output signal. The receiver circuit receives an ESR signal from an ESR probe. The receiver circuit includes a receiver amplifier circuit configured to generate an amplified ESR signal based on the received ESR signal, a mixer circuit configured to receive the amplified ESR signal and to down-convert the amplified ESR signal to a baseband signal, and a baseband amplifier circuit configured to generate an amplified baseband signal based on the baseband signal.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 27, 2017
    Assignee: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Xuebei Yang, Charles Chen, Payam Seifi, Aydin Babakhani
  • ELECTRON SPIN RESONANCE FOR MEDICAL IMAGING
    Publication number: 20140097842
    Abstract: A method includes generating, from an integrated oscillator circuit, an oscillating output signal and generating, by an integrated power amplifier (PA) circuit, an amplified oscillating output signal based on the oscillating output signal. The method further includes receiving, by integrated receiver amplifier circuit, an electron spin resonance (ESR) signal from biological samples that include a magnetic species and generating, by the integrated receiver amplifier circuit, an amplified ESR signal based on the received ESR signal. The method further includes receiving, by the integrated receiver amplifier circuit, an electron spin resonance (ESR) signal from magnetic nanoparticles that are loaded with drugs or attached to human cells.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 10, 2014
    Applicant: William Marsh Rice University
    Inventors: Xuebei Yang, Charles Chen, Payam Seifi, Aydin Babakhani
  • INTERGRATED ELECTRON SPIN RESONANCE SPECTROMETER
    Publication number: 20140091802
    Abstract: An integrated electron spin resonance (ESR) circuit chip includes a chip substrate, a transmitter circuit, and a receiver circuit. The transmitter circuit and receiver circuit are disposed on the chip substrate. The transmitter circuit includes an oscillator circuit configured to generate an oscillating output signal and a power amplifier (PA) circuit configured to generate an amplified oscillating output signal based on the oscillating output signal. The receiver circuit receives an ESR signal from an ESR probe. The receiver circuit includes a receiver amplifier circuit configured to generate an amplified ESR signal based on the received ESR signal, a mixer circuit configured to receive the amplified ESR signal and to down-convert the amplified ESR signal to a baseband signal, and a baseband amplifier circuit configured to generate an amplified baseband signal based on the baseband signal.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 3, 2014
    Applicant: William Marsh Rice University
    Inventors: Xuebei Yang, Charles Chen, Payam Seifi, Aydin Babakhani