Patents by Inventor Seong-Tank Hwang

Seong-Tank Hwang 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).

  • Long-band light source for testing optical elements using feedback loop
    Patent number: 6570701
    Abstract: A long-band (L-band) light source capable of testing the characteristics of optical elements using a feedback loop in a fiber amplifier of an optical communication system.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: May 27, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Tank Hwang, Soo-Young Yoon, Rae-Sung Jung, Jeong-Moo Kim, Sung-Jun Kim