Patents Assigned to Panasonic Patent Center
  • Sound reproduction device
    Patent number: 8861774
    Abstract: A sound reproduction device includes a superdirective speaker having a first surface, and an attachment part having a second surface opposed to the first surface. The first surface has a convex face, and the second surface has a concave face which can come into contact with the convex face. A curvature of the convex face is set larger than that of the concave face. A direction of emitting a sound wave of the superdirective speaker can be adjusted by making the convex face move along the concave face.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: October 14, 2014
    Assignee: Panasonic Patent Center
    Inventors: Katsu Takeda, Fumiyasu Konno, Rihito Shoji, Susumu Fukushima