Patents by Inventor Sung-han Ha

Sung-han Ha 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).

  • Multi-head device for optical disk and recording/reproducing system for multiple users utilizing the same
    Patent number: 5631893
    Abstract: A recording/reproducing system for multiple users is disclosed which includes a plurality of channels connected to multiple users, a data processing portion for processing a signal of input/output information of an optical disk, and an optical head portion for reading and writing the information of optical disk. The optical head portion has at least one ultra-slim, subminiature multi-head device commonly having at least two optical heads, thereby allowing individuals to process desired information at any time.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: May 20, 1997
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-ku Kang, Sung-han Ha, Tae-seok Park, Chul-woo Lee