Patents by Inventor Kazuo Hirakawa

Kazuo Hirakawa 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).

  • ARTIFICIAL JOINT REPLACEMENT ASSISTING DEVICE, ARTIFICIAL JOINT REPLACEMENT ASSISTING METHOD USING SAME, AND ASSISTING SYSTEM
    Publication number: 20100094308
    Abstract: A technique of adequately determining the position of the bone resection plane of artificial joint replacement and the size of the implant. The three-dimensional relative position relation (the three-dimensional position relation between the relation among frontal three elements and the relation among lateral three elements) among the five elements, i.e., a frontal The source of X-ray (FS), the plane (PS) to which the frontal radiograph belongs, a lateral The source of X-ray (FL), the plane (PL) to which the lateral radiograph belongs, a lateral The source of X-ray (FL), the plane (PL) to which the lateral radiograph belongs, and three-dimensional CAD data is determined (S7), shade images (IU, IL) of three dimensional CAD data on the implant are superimposed in an adequate position shown in the radiograph, and the images are displayed on a display (112) (S9, S10).
    Type: Application
    Filed: December 20, 2007
    Publication date: April 15, 2010
    Inventors: Ichiro Tatsumi, Kazuo Hirakawa, Yugo Kitamura, Shinichi Nakajima, Akira Murakami