Patents by Inventor Mei-Hua Wang

Mei-Hua Wang 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: 20050096440
    Abstract: Organometallic reversible addition-fragmentation chain transfer reagents (RAFT reagents), processes of free radical polymerization employing the same and polymers with low polydispersity index obtained thereby. The process includes polymerizing at least one monomer with at least one initiator and at least one organometallic RAFT reagent to obtain polymers having terminal organometallic functional groups with low polydispersity index. In addition, the terminal organometallic functional group may be removed by subjecting the obtained polymer to elimination to provide the corresponding organic polymers.
    Type: Application
    Filed: May 10, 2004
    Publication date: May 5, 2005
    Inventors: Yih-Hsing Lo, Kuo-Chen Shih, Yi-Chun Chen, Mei-Hua Wang, Fong-Yee Hsu, Ming-Siao Hsiao
  • Patent number: 6774195
    Abstract: A catalyst composition and process for preparing norbornene-type homopolymers or copolymers. The norbornene-type homopolymers or copolymers can be prepared using an in-situ catalyst composition including: (a) a transition metal compound of ML4, wherein M is a Group 10 metal and L is a neutral electron donor ligand; (b) a hydrocarbyl halogen containing a double bond or a triple bond; and (c) a salt of a non or weakly coordinative anion that can replace a halogen bonded to a metal. The catalyst composition is in a mixing state of components (a), (b), and (c), or in a mixing state of a reaction product of components (a) and (b) together with component (c).
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: August 10, 2004
    Assignee: Industrial Technology Research Institute
    Inventors: Ting-Yu Lee, Meei-Yu Hsu, Mei-Hua Wang
  • Publication number: 20030162922
    Abstract: A catalyst composition and process for preparing norbornene-type homopolymers or copolymers. The norbornene-type homopolymers or copolymers can be prepared using an in-situ catalyst composition including: (a) a transition metal compound of ML4, wherein M is a Group 10 metal and L is a neutral electron donor ligand; (b) a hydrocarbyl halogen containing a double bond or a triple bond; and (c) a salt of a non or weakly coordinative anion that can replace a halogen bonded to a metal. The catalyst composition is in a mixing state of components (a), (b), and (c), or in a mixing state of a reaction product of components (a) and (b) together with component (c).
    Type: Application
    Filed: July 2, 2002
    Publication date: August 28, 2003
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ting-Yu Lee, Meei-Yu Hsu, Mei-Hua Wang
  • Patent number: 6137293
    Abstract: A measuring method for equivalent circuitry is disclosed herein to characterize the interconnects using time-domain reflectometry measurement. By combining the layer peeling algorithm for transmission lines and the matrix-pencil approach for discontinuities, the technique yields a simple equivalent circuit model which consists of distributed transmission lines and networks of lumped elements. With element values being independent of frequency, the model is well suited to model nonlinear broadband circuit simulation for electrical performance of the interconnects.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: October 24, 2000
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Ruey-Beei Wu, Mei-Hua Wang