Patents by Inventor In J. Kim

In J. Kim 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).

  • Leaf spring for supporting reels of a video tape cassette
    Patent number: 4946148
    Abstract: A leaf spring for supporting supply and take-up reels of a video tape cassette which has a narrow and uniform width on the whole while having a proper tensional force suitable for supporting the reels, whereby the leaf spring prevents a tape from badly travelling by maintaining the rotational centers of reels uniform without rolling thereof and reduces waste pieces from cutting materials.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: August 7, 1990
    Assignee: Goldstar Co., Ltd.
    Inventor: In J. Kim