Patents by Inventor Kyong-Min Ryu

Kyong-Min Ryu 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).

  • Patent number: 6988455
    Abstract: A sewing machine comprises: a head portion having a sewing needle driven to vertically reciprocate; a lower shaft having a shuttle connected thereto which is driven to rotate synchronized with the vertical movement of the sewing needle cooperating to form stitches; a table positioned above the lower shaft; a retainer positioned above the table to retain a material for forming stitches thereon; a holding frame placed parallel to the table, the head portion being mounted at a position on the holding frame; and supporting posts adapted to support opposite ends of the holding frame for positioning the holding frame above the table. The sewing machine allows a material to be sewn, which is retained retainer, to be easily mounted or removed.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: January 24, 2006
    Assignee: Sunstar Machinery Co., Ltd.
    Inventors: Jae-Hak Lee, Kyong-Min Ryu
  • Publication number: 20050000397
    Abstract: A sewing machine comprises: a head portion having a sewing needle driven to vertically reciprocate; a lower shaft having a shuttle connected thereto which is driven to rotate synchronized with the vertical movement of the sewing needle cooperating to form stitches; a table positioned above the lower shaft; a retainer positioned above the table to retain a material for forming stitches thereon; a holding frame placed parallel to the table, the head portion being mounted at a position on the holding frame; and supporting posts adapted to support opposite ends of the holding frame for positioning the holding frame above the table. The sewing machine allows a material to be sewn, which is retained retainer, to be easily mounted or removed.
    Type: Application
    Filed: March 31, 2004
    Publication date: January 6, 2005
    Inventors: Jae-Hak Lee, Kyong-Min Ryu