Patents by Inventor Seon Han

Seon Han 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).

  • Publication number: 20070173592
    Abstract: Disclosed is a fluorine compound having perfluorostyrene introduced at a terminal thereof, as represented in the following Formula 1, and a coating solution and an optical waveguide device using the same, characterized in that the introduction of perfluorostyrene results in a facile fabrication of thin films by a UV curing or a thermal curing, high thermal stability and chemical resistance, and low optical propagation loss and birefringence: Wherein Z is O or S; RF is an aliphatic or aromatic group; y is a natural number of 1-10; y? is an integer of 0-1, x is an integer of 0-200; and Wherein B is a single bond or selected from the group consisting of —CO—, —SO2—, —S— and —O—, and Hal is selected from the group consisting of F, Cl, Br and I.
    Type: Application
    Filed: March 19, 2007
    Publication date: July 26, 2007
    Applicant: Chemoptics Inc.
    Inventors: Ji-Hyang Kim, Jae-Il Kim, Tae-Kyun Kim, Hyung Lee, Seon Han
  • Publication number: 20070123176
    Abstract: Provided is an RF front-end transceiver having an oscillator for outputting a resonant frequency signal whose frequency is controlled by a frequency control signal provided from a frequency synthesizer or a base band processor; a receive amplifier for amplifying and outputting a receive RF signal; a receive mixer for mixing the receive RF signal amplified and the resonant frequency signal to convert the receive RF signal into a receive base band signal; a transmit mixer for mixing a transmit base band signal and the resonant frequency signal to convert the transmit base band signal into a transmit RF signal; and a transmit amplifier for amplifying and outputting the transmit RF signal, wherein a resonant frequency of at least one of the receive amplifier, the receive mixer, the transmit mixer and the transmit amplifier is controlled by the frequency control signal.
    Type: Application
    Filed: September 21, 2004
    Publication date: May 31, 2007
    Inventors: Seon Han, Hyun Yu, Mun Park, Jong Kim
  • Publication number: 20050163451
    Abstract: Disclosed is a fluorine compound having perfluorostyrene introduced at a terminal thereof, as represented in the following Formula 1, and a coating solution and an optical waveguide device using the same, characterized in that the introduction of perfluorostyrene results in a facile fabrication of thin films by a UV curing or a thermal curing, high thermal stability and chemical resistance, and low optical propagation loss and birefringence: Wherein Z is O or S; RF is an aliphatic or aromatic group; y is a natural number of 1-10; y? is an integer of 0-1; x is an integer of 0-200; and Wherein B is a single bond or selected from the group consisting of —CO—, —SO2—, —S— and —O—, and Hal is selected from the group consisting of F, Cl, Br and I.
    Type: Application
    Filed: January 13, 2005
    Publication date: July 28, 2005
    Applicant: Zen Photonics Co., Ltd.
    Inventors: Ji-Hyang Kim, Jae-Il Kim, Tae-Kyun Kim, Hyung Lee, Seon Han