Patents by Inventor Emery Kujiraoka

Emery Kujiraoka 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).

  • Adaptive cross polarization electronic countermeasures system
    Patent number: 6486823
    Abstract: An adaptive cross polarization electronic countermeasures system comprising identical transmit and receive antennas. The transmit antenna is rotated 180 degrees with respect to the receive antenna. The transmit and receive antennas are mounted facing the same direction allowing for reception of an incoming RF signal from a monopulse radar and transmission of the signal back to the monopulse once ECM jamming is applied. The incoming RF signal is separated into vertical and horizontal components by coupling to vertical and horizontal feeds within the receive antenna. Each component is then amplified sequentially through the system and transmitted back to the monopulse radar. At the transmit antenna, the vertical component is transmitted out of the horizontal feed of the transmit antenna 180 degrees out of phase with respect to the feed. The horizontal component is transmitted out of the vertical feed of the transmit antenna with no phase shift.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: November 26, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Mickey Benson, Eugene Clark Ball, Emery Kujiraoka, Ben Rasnick