Patents by Inventor Toshio Koda

Toshio Koda 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).

  • Photoacoustic imaging method
    Patent number: 5070733
    Abstract: A photoacoustic imaging method comprises the steps of using modulated light of two different modulation frequencies to illuminate an object to be observed, so that an image of only a region of a specified depth within the object is obtained based on the difference between two photoacoustic signals separately detected by an acoustic sensor.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: December 10, 1991
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Yoshihiko Nagata, Toshio Koda