Patents by Inventor Yuhua Huang

Yuhua Huang 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).

  • Electrically tunable polarization-independent micro lens using polymer network twisted nematic liquid crystal
    Patent number: 7079203
    Abstract: Inhomogeneous concentrated polymer network with approximately 90° twisted nematic liquid crystal (TN-LC) is used for fabricating lens and prisms. For forming a positive lens, the approximately 90° TN-LC polymer network concentration can gradually decrease from the center to the side edges. For forming a negative lens, the approximately 90° TN-LC polymer network concentration can gradually increase from the center to the side edges. The lens can be created by ultra violet (UV) light exposure to patterned photo masks. The lens can be tuned by applying voltage above the threshold voltage to the polymer network. The inhomogeneous 90° TN-LC polymer network can also be used in Fresnel lens and prisms. Applications of the invention can be used for micro lens, array, optical communication, micro-optics, adaptive optics and beam steering.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: July 18, 2006
    Assignee: Research Foundation of the University of Central Florida, Inc.
    Inventors: Yuhua Huang, Hongwen Ren, Xinyu Zhu, Shin-Tson Wu
  • Peptides as NS3-serine protease inhibitors of hepatitis C virus
    Patent number: 7012066
    Abstract: The present invention discloses novel compounds which have HCV protease inhibitory activity as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such compounds as well as methods of using them to treat disorders associated with the HCV protease.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: March 14, 2006
    Assignees: Schering Corporation, Dendreon Corporation
    Inventors: Anil K. Saksena, Viyyoor Moopil Girijavallabhan, Raymond G. Lovey, Edwin Jao, Frank Bennett, Jinping L. Mc Cormick, Haiyan Wang, Russell E. Pike, Stephane L. Bogen, Tin-Yau Chan, Yi-Tsung Liu, Zhaoning Zhu, F. George Njoroge, Ashok Arasappan, Tejal Parekh, Ashit K. Ganguly, Kevin X. Chen, Srikanth Venkatraman, Henry A. Vaccaro, Patrick A. Pinto, Bama Santhanam, Scott Jeffrey Kemp, Odile Esther Levy, Marguerita Lim-Wilby, Susan Y. Tamura, Wanli Wu, Siska Hendrata, Yuhua Huang
  • Achromatic quarter-wave films
    Patent number: 7009670
    Abstract: The achromatic quarter-wave film of this invention has a laminated twisted nematic liquid crystal film sandwiched between two uniaxial polymer films to provide a optical component which converts linearly polarized light into circularly polarized radiation which upon reflection back through said optical component is blocked from outward radiation by the polarizer for the initial incident wide spectrum light thus realizing wider broadband width for full color flat panel displays.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: March 7, 2006
    Assignee: Research Foundation of the University of Central Florida, Inc.
    Inventors: Yuhua Huang, Thomas X. Wu, Shin-Tson Wu
  • Novel peptides as NS3-serine protease inhibitors of hepatitis C virus
    Publication number: 20040254117
    Abstract: The present invention discloses novel compounds which have HCV protease inhibitory activity as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such compounds as well as methods of using them to treat disorders associated with the HCV protease.
    Type: Application
    Filed: July 19, 2001
    Publication date: December 16, 2004
    Inventors: Anil K. Saksena, Viyyoor Moopil Girijavallabhan, Raymond G. Lovey, Edwin Jao, Frank Bennett, Jinping L. McCormick, Haiyan Wang, Russell E. Pike, Stephane L. Bogen, Tin-Yau Chan, Yi-Tsung Liu, Zhaoning Zhu, F. George Njoroge, Ashok Arasappan, Tejal Parekh, Ashit K. Ganguly, Kevin X. Chen, Srikanth Venkatraman, Henry A. Vaccaro, Patrick A. Pinto, Bama Santhanam, Scott Jeffrey Kemp, Odile Esther Levy, Marguerita Lim-Wilby, Susan Y. Tamura, Wanli Wu, Siska Hendrata, Yuhua Huang
  • Novel peptides as NS3-serine protease inhibitors of hepatitis C virus
    Publication number: 20030216325
    Abstract: The present invention discloses novel compounds which have HCV protease inhibitory activity as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such compounds as well as methods of using them to treat disorders associated with the HCV protease.
    Type: Application
    Filed: July 19, 2001
    Publication date: November 20, 2003
    Inventors: Anil K. Saksena, Viyyoor Moopil Girijavallabhan, Raymond G. Lovey, Edwin Jao, Frank Bennett, Jinping L. McCormick, Haiyan Wang, Russell E. Pike, Stephane L. Bogen, Tin-Yau Chan, Yi-Tsung Liu, Zhaoning Zhu, F. George Njoroge, Ashok Arasappan, Tejal Parekh, Ashit K. Ganguly, Kevin X. Chen, Srikanth Venkatraman, Henry A. Vaccaro, Patrick A. Pinto, Bama Santhanam, Scott Jeffrey Kemp, Odile Esther Levy, Marguerita Lim-Wilby, Susan Y. Tamura, Wanli Wu, Siska Hendrata, Yuhua Huang
  • Apparatus and method for deterministic receiver testing
    Patent number: 6260167
    Abstract: A physical layer (PHY) device in an Ethernet type LAN is configured to permit ease of testing of the PHY device's logic. The PHY device comprises a PHY receiver, a start frame delimiter detector (SFD), and automatic checker circuitry in which the clock position and the PHY pop-up position of received signals can be determined. The automatic checker circuitry receives a data signal having a predetermined pattern corresponding to a valid data packet from a pattern generating circuit. The automatic checker circuitry outputs a verification signal indicating whether the supplied signals are valid. This arrangement supports a one pass test, which reduces production costs and testing duration.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: July 10, 2001
    Assignee: Advanced Micro Devices, Inc.
    Inventors: William Lo, Yuhua Huang