Patents by Inventor Yeon-Chung Ku

Yeon-Chung Ku 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).

  • Tiltable roller assembly for use in a video cassette recorder
    Patent number: 5788137
    Abstract: A tiltable roller assembly includes a roller, a sleeve tightly fitted into the roller, a supporting shaft extending through the sleeve, the supporting shaft having a small diameter section and a large diameter section, a rotating member for pivotally carrying the roller and the sleeve about the supporting shaft and a cushion member for allowing the roller and the sleeve to tilt with respect to the supporting shaft. The rotating member has at its periphery an external groove for accommodating the cushion member and a bore through its center and a protruding portion, inwardly extending from an upper end of the bore, for serving to limit the amount of the descent of the rotating member.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: August 4, 1998
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Yeon-Chung Ku