Patents Assigned to Junichi Kushibiki
  • Focusing ultrasonic transducer element
    Patent number: 4566333
    Abstract: A focusing ultrasonic transducer element comprising an ultrasonic propagating medium and an ultrasonic transmitting and receiving transducer. The ultrasonic propagating medium is provided with a convex spherical or cylindrical portion in one end and a concave spherical or cylindrical portion in the other end.
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: January 28, 1986
    Assignees: Keisuke Honda, Noriyoshi Chubachi, Junichi Kushibiki
    Inventors: Noriyoshi Chubachi, Junichi Kushibiki, Kouichi Nakanishi