Patents by Inventor Lee Kee Dong

Lee Kee Dong 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).

  • Video tape reel support spring
    Patent number: 5195696
    Abstract: In a video tape reel support spring, the present invention is an improvement on the support spring and is designed for both cost reduction and functional improvement. Its main feature is that a spring of equal width is provided, but a reinforcing means which can prevent its elasticity from weakening is provided and it is altered so as to enable its end to apply just the right pressure to the center boss.
    Type: Grant
    Filed: January 18, 1989
    Date of Patent: March 23, 1993
    Assignee: SKC Limited
    Inventor: Lee Kee Dong