Patents by Inventor Li-Chung Liang

Li-Chung Liang 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).

  • Method and system of model fusion for laparoscopic surgical guidance
    Patent number: 11989833
    Abstract: The present teaching relates to method, system, medium, and implementations for fusing a 3D virtual model with a 2D image associated with an organ of a patient. A key-pose is determined as an approximate position and orientation of a medical instrument with respect to the patient's organ. Based on the key-pose, an overlay is generated on a 2D image of the patient's organ, acquired by the medical instrument, by projecting the 3D virtual model on to the 2D image. A pair of feature points includes a 2D feature point from the 2D image and a corresponding 3D feature point from the 3D virtual model. The 3D coordinate of the 3D feature point is determined based on the 2D coordinate of the 2D feature point. The depth of the 3D coordinate is on a line of sight of the 2D feature point and is determined so that the projection of the 3D virtual model from the depth creates an overlay approximately matching the organ observed in the 2D image.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: May 21, 2024
    Assignee: EDDA TECHNOLOGY, INC.
    Inventors: Xiaonan Zang, Guo-Qing Wei, Cheng-Chung Liang, Li Fan, Xiaolan Zeng, Jianzhong Qian
  • PPE copolymers, preparation thereof, and resin composition utilizing the same
    Patent number: 6767970
    Abstract: PPE copolymers comprise three repeating units. The PPE copolymers are polymerized with 2,6-DMP, dialkenylamide or dialkenylamine phenol, and another phenol derivative. A resin composition having a low cross-linking temperature is also disclosed, which comprises the PPE copolymer and a free radical initiator.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: July 27, 2004
    Assignee: Industrial Technology Research Institute
    Inventors: Shin-Shin Wang, Jie-Hwa Ma, Jong-Lieh Yang, Kuo-Yuan Hsu, Li-Chung Liang
  • PPE copolymers, preparation thereof, and resin composition utilizing the same
    Publication number: 20030225220
    Abstract: PPE copolymers comprise three repeating units. The PPE copolymers are polymerized with 2,6-DMP, dialkenylamide or dialkenylamine phenol, and another phenol derivative. A resin composition having a low cross-linking temperature is also disclosed, which comprises the PPE copolymer and a free radical initiator.
    Type: Application
    Filed: December 3, 2002
    Publication date: December 4, 2003
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Shin-Shin Wang, Jie-Hwa Ma, Jong-Lieh Yang, Kuo-Yuan Hsu, Li-Chung Liang
  • PPE derivatives and resin composition having the same
    Publication number: 20020072585
    Abstract: This invention relates to a partially or exhaustively derivatized PPE. The partially derivatized PPE comprises vinylated phenylene ether repeating unit, and at least one another repeating unit, which is selected from a phenylene ether repeating unit and a hydroxylated phenylene ether repeating unit. A resin composition having a low curing temperature is also disclosed, which comprises: (a) a partially or exhaustively derivatized PPE; and (b) a free radical initiator.
    Type: Application
    Filed: December 28, 2000
    Publication date: June 13, 2002
    Applicant: Industrial Technology Research Institute
    Inventors: Chingchen S. Chiu, Chien-Ting Lin, Gue-Wuu Hwang, Li-Chung Liang, Meng-Song Yin