Patents by Inventor Chin Su

Chin Su 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).

  • Wavelength-tunable traveling-wave semiconductor ring-laser
    Patent number: 5164954
    Abstract: A traveling-wave ring-laser (10) to provide improved power stability single longitudinal mode characteristics, narrow lasing linewidth and smooth wavelength tuning. The ring-laser comprises an optical amplifier (12) that includes a first facet (16) and a second facet (42). Optical amplifier (12) generates laser light from first facet (16) ring-laser (10) directs a portion of the laser light from first facet (16) back into second facet (42). An Faraday rotator (32) and half-wave plate (30) direct a portion of laser light that second facet (42) receives to travel in one direction only from first facet (16) to second facet (42). By feeding back input from optical amplifier (12) first facet 16 into second facet 42, lasing occurs. Causing laser light from first facet (16) to travel in one direction provides for smooth wavelength tuning and stable power performance single longitudinal mode and narrow-linewidth characteristics in laser system (10).
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: November 17, 1992
    Assignee: The Texas A&M University System
    Inventor: Chin Su
  • Inhibited epoxysilanes
    Patent number: 5155233
    Abstract: Compositions are provided containing epoxysilanes and diphenylamine in an amount at least sufficient to inhibit degradation. Methods for producing such compositions are also provided.
    Type: Grant
    Filed: December 24, 1991
    Date of Patent: October 13, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Shiu-Chin Su, Frederick D. Osterholtz