Patents by Inventor Yasushi Akazawa

Yasushi Akazawa 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).

  • Ankle-foot orthosis prescription assistive device
    Patent number: 8197425
    Abstract: A measurement device (10) for quantitatively measuring stiffness, torque or range of motion (ROM) around the joint axis of the ankle-foot complex of a lower limb in the sagittal and coronal planes, the device (10) comprising: a plate (13, 21) for placement of the ankle-foot complex, the plate (13, 21) operatively connected to an actuator (14, 16) for manual actuation; an angular measurement device (12, 17) to measure an angular position of the ankle-foot complex; a torquemeter (11) to measure resistance torque of the ankle-foot complex; an electromyograph (48) to monitor muscular activity of muscles of the lower limb; and computer software to record the measured angular position, resistance torque of the ankle-foot complex and EMG of the lower limb muscles.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: June 12, 2012
    Assignee: Hong Kong Polytechnic University
    Inventors: Toshiki Kobayashi, Kam Lun Leung, Yasushi Akazawa, Satoru Maeda, Toshiya Nakamura
  • ANKLE-FOOT ORTHOSIS PRESCRIPTION ASSISTIVE DEVICE
    Publication number: 20110118630
    Abstract: A measurement device (10) for quantitatively measuring stiffness, torque or range of motion (ROM) around the joint axis of the ankle-foot complex of a lower limb in the sagittal and coronal planes, the device (10) comprising: a plate (13, 21) for placement of the ankle-foot complex, the plate (13, 21) operatively connected to an actuator (14, 16) for manual actuation; an angular measurement device (12, 17) to measure an angular position of the ankle-foot complex; a torquemeter (11) to measure resistance torque of the ankle-foot complex; an electromyograph (48) to monitor muscular activity of muscles of the lower limb; and computer software to record the measured angular position, resistance torque of the ankle-foot complex and EMG of the lower limb muscles.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 19, 2011
    Inventors: Toshiki Kobayashi, Kam Lun Leung, Yasushi Akazawa, Satoru Maeda, Toshiya Nakamura