Patents by Inventor Kyoyul Oh

Kyoyul Oh 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: 6904210
    Abstract: A fiber optic cable is disclosed that buffers against loss, where the cable includes an outer jacket, and an optical fiber ribbon disposed within the outer jacket, wherein the ribbon includes more than one optical fiber, and at least two distinct matrix coatings disposed on the optical fibers, the coatings having distinct characteristics. Preferably, the inner coating is relatively soft, with a lower elastic modulus than the relatively stiff, hard outer coating. Also disclosed is a method of buffering loss in an optical fiber transmission, including providing an optical fiber ribbon, wherein the ribbon includes more than one optical fiber, and at least two distinct matrix coatings disposed on the optical fibers, the coatings having distinct characteristics; and transmitting in at least one of the C-band, L-band and U-band of wavelengths.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: June 7, 2005
    Assignee: Fitel USA Corp.
    Inventors: Vidyananda Bangalore Chandraiah, Kyoyul Oh, Kenneth Wade Jackson
  • Publication number: 20040179799
    Abstract: An improved optical fiber cable is fabricated from a core surrounded by a protective sheath having a radially-varying elastic modulus. The core comprises one or more longitudinally extending optical fibers. The protective sheath comprises least a first coating layer portion and a second coating layer portion. The first and second coating layer portions are comprised of a common coating material. A modifier is added to the coating material comprising the first coating layer portion. Likewise, a modifier is added to the coating material comprising the second coating layer portion. The addition of a modifier to the first coating layer portion and the addition of a modifier to the second coating layer portion cause the coating to have an elastic modulus that varies in a radial direction along radii extending outwardly from a center of the core of the cable. The core may be, for example, a single optical fiber, a bundle of optical fibers, an optical fiber ribbon, a stack of optical fiber ribbons, etc.
    Type: Application
    Filed: March 10, 2003
    Publication date: September 16, 2004
    Inventors: Kariofilis Konstadinidis, Kyoyul Oh, Mahmood Tabaddor, John M. Turnipseed
  • Publication number: 20040052483
    Abstract: A fiber optic cable is disclosed that buffers against loss, where the cable includes an outer jacket, and an optical fiber ribbon disposed within the outer jacket, wherein the ribbon includes more than one optical fiber, and at least two distinct matrix coatings disposed on the optical fibers, the coatings having distinct characteristics. Preferably, the inner coating is relatively soft, with a lower elastic modulus than the relatively stiff, hard outer coating. Also disclosed is a method of buffering loss in an optical fiber transmission, including providing an optical fiber ribbon, wherein the ribbon includes more than one optical fiber, and at least two distinct matrix coatings disposed on the optical fibers, the coatings having distinct characteristics; and transmitting in at least one of the C-band, L-band and U-band of wavelengths.
    Type: Application
    Filed: September 17, 2002
    Publication date: March 18, 2004
    Applicant: Fitel USA Corp.
    Inventors: Vidyananda Bangalore Chandraiah, Kyoyul Oh, Kenneth Wade Jackson