Patents Assigned to Tong-Hoon Sohn
  • Speaker system
    Patent number: 5091959
    Abstract: A sound speaker system has air chambers in a cylinder with a voice coil actuated vibrator and suitable inner wall speakers.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: February 25, 1992
    Assignee: Tong-Hoon Sohn
    Inventors: Tong-Hong Sohn, Jeong-Hoon Yoon