Patents Assigned to Young Jun Kweon
  • Tapered toothbrush bristle and toothbrush with said bristles, and methods for producing the same
    Patent number: 6090488
    Abstract: A tapered bristle for a toothbrush which is tapered starting at 10 mm or less, preferably 3-5 mm, from the end of the bristle, characterized in that the tapered end of the bristle ranges from 0.04 mm to 0.08 mm in diameter, is disclosed. A toothbrush tufted with said tapered bristles is also disclosed. In addition, methods for producing said tapered bristle or said toothbrush are disclosed.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: July 18, 2000
    Assignees: Cheil Jedant Corporation, Young Jun Kweon
    Inventor: Young Jun Kweon