Patents by Inventor Akihiro Ishiguro

Akihiro Ishiguro 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).

  • Ultrasonic medical treatment apparatus
    Patent number: 4960107
    Abstract: An ultrasonic medical treatment apparatus having an piezoelectric element for generating ultrasonic energy is provided. The element is constituted by a plurality of unit piezoelectric elements of two or more different shapes. The surface areas of these unit elements are substantially equal to each other. These unit elements can be individually removed as required.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: October 2, 1990
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Satoshi Aida, Nobuyuki Iwama, Syuzi Suzuki, Akihiro Ishiguro