Patents by Inventor Yukinobu Yokoyama

Yukinobu Yokoyama 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: 5732705
    Abstract: A region of interest of a subject is scanned with ultrasound to acquire echo signals. The echo signals are processed to obtain doppler signals. The doppler signals are processed to obtain color angio signals reflecting an amplitude of the doppler signals. The maximum value of levels of the color angio signals is increased from a first value to a second value by a contrast-enhancement effect. The level change within the first value is expressed by the brightness gradation. The level change the first value is expressed by the hue gradation. Therefore, the range less than the first value can be associated with the whole width of the usable brightness gradation of a color display, so that the level change less than the first value can be expressed with high contrast.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: March 31, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yukinobu Yokoyama, Ryoichi Kanda