Patents by Inventor Yupai P. Hsu

Yupai P. Hsu 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).

  • Method and apparatus for electromagnetic logging with two dimensional antenna array
    Patent number: 5434507
    Abstract: A two-dimensional array of slot antennas which can provide two-dimensional quantitative dielectric and conductivity images of formations in the region surrounding an earth borehole. The antennas are mounted in a wall-engaging member of a logging device that is moveable through the borehole. Selected ones of the antennas are energized at given times to transmit electromagnetic energy into the formations, the electromagnetic energy being received at other antennas for processing to obtain formation properties.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: July 18, 1995
    Assignee: Schlumberger Technology Corporation
    Inventors: Jeffrey A. Beren, Tarek M. Habashy, Yupai P. Hsu, David R. Mariani, Kambiz A. Safinya, M. Reza Taherian