Patents by Inventor Koji Taguchi

Koji Taguchi 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: 4788981
    Abstract: A pulse compression apparatus comprises a quadrature detector for converting an echo signal obtained by an ultrasonic transducer into a complex signal, a reference wave oscillator for producing a reference wave signal, and a correlation circuit for deriving a correlation between the complex signal and the reference wave signal to compress the echo signal.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: December 6, 1988
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Tatsuo Nagasaki, Koji Taguchi, Shinichi Imade, Eishi Ikuta, Kazunori Shionoya