Patents by Inventor Igor V. Roshchin

Igor V. Roshchin 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).

  • Frequency mixer having ferromagnetic film
    Patent number: 9300251
    Abstract: A frequency conversion device, which may include a radiofrequency (RF) mixer device, includes a substrate and a ferromagnetic film disposed over a surface of the substrate. An insulator is disposed over the ferromagnetic film and at least one microstrip antenna is disposed over the insulator. The ferromagnetic film provides a non-linear response to the frequency conversion device. The frequency conversion device may be used for signal mixing and amplification. The frequency conversion device may also be used in data encryption applications.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: March 29, 2016
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Alexander Khitun, Igor V. Roshchin, Kosmas Galatsis, Mingqiang Bao, Kang L. Wang
  • Exchange-bias based multi-state magnetic memory and logic devices and magnetically stabilized magnetic storage
    Patent number: 7764454
    Abstract: Magnetic materials and methods for using ferromagnetic and antiferromagnetic coupling and exchange bias for binary and multistate magnetic memory device.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: July 27, 2010
    Assignee: The Regents of the University of California
    Inventors: Igor V. Roshchin, Oleg Petracic, Rafael Morales, Zhi-Pan Li, Xavier Batlle, Ivan K. Schuller
  • FREQUENCY MIXER HAVING FERROMAGNETIC FILM
    Publication number: 20080224740
    Abstract: A frequency conversion device, which may include a radiofrequency (RF) mixer device, includes a substrate and a ferromagnetic film disposed over a surface of the substrate. An insulator is disposed over the ferromagnetic film and at least one microstrip antenna is disposed over the insulator. The ferromagnetic film provides a non-linear response to the frequency conversion device. The frequency conversion device may be used for signal mixing and amplification. The frequency conversion device may also be used in data encryption applications.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 18, 2008
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Alexander Khitun, Igor V. Roshchin, Kosmas Galatsis, Mingqiang Bao, Kang L. Wang
  • Exchange-Bias Based Multi-State Magnetic Memory And Logic Devices And Magnetically Stabilized Magnetic Storage
    Publication number: 20080084627
    Abstract: Magnetic materials and methods for using ferromagnetic and antiferromagnetic coupling and exchange bias for binary and multistate magnetic memory device.
    Type: Application
    Filed: July 13, 2005
    Publication date: April 10, 2008
    Inventors: Igor V. Roshchin, Oleg Petracic, Rafael Morales, Zhi-Pan Li, Xavier Batlle, Ivan K. Schuller