Patents by Inventor Shu-Wei Liu

Shu-Wei Liu 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: 20210002243
    Abstract: A method for purifying a crude 2,5-furandicarboxylic acid composition including 2,5-furandicarboxylic acid and 2-furoic acid is disclosed. The method includes the steps of: (a) mixing the crude 2,5-furandicarboxylic acid composition with a solvent solution that includes alcohol so as to obtain a mixture; (b) heating the mixture to permit full dissolution of the crude 2,5-furandicarboxylic acid composition in the solvent solution; and (c) cooling the mixture to permit recrystallization of the 2,5-furandicarboxylic acid from the mixture so as to obtain purified 2,5-furandicarboxylic acid.
    Type: Application
    Filed: January 7, 2020
    Publication date: January 7, 2021
    Applicant: FAR EASTERN NEW CENTURY CORPORATION
    Inventors: Shu-Wei LIU, Xin-An LU
  • Patent number: 10882836
    Abstract: A method for purifying a crude 2,5-furandicarboxylic acid composition including 2,5-furandicarboxylic acid and 2-furoic acid is disclosed. The method includes the steps of: (a) mixing the crude 2,5-furandicarboxylic acid composition with a solvent solution that includes alcohol so as to obtain a mixture; (b) heating the mixture to permit full dissolution of the crude 2,5-furandicarboxylic acid composition in the solvent solution; and (c) cooling the mixture to permit recrystallization of the 2,5-furandicarboxylic acid from the mixture so as to obtain purified 2,5-furandicarboxylic acid.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: January 5, 2021
    Assignee: FAR EASTERN NEW CENTURY CORPORATION
    Inventors: Shu-Wei Liu, Xin-An Lu
  • Patent number: 10858332
    Abstract: A method for purifying a crude 2,5-furandicarboxylic acid composition including 2,5-furandicarboxylic acid and 5-formylfuran-2-carboxylic acid is disclosed. The method includes the steps of: (a) subjecting the crude 2,5-furandicarboxylic acid composition to complete dissolution in a solvent solution to obtain a mixture, the solvent solution including an organic solvent and water; (b) subjecting 5-formylfuran-2-carboxylic acid in the mixture to an addition reaction with sodium hydrogen sulfite to obtain an addition product; and (c) subjecting 2,5-furandicarboxylic acid to precipitation after step (b) to obtain purified 2,5-furandicarboxylic acid.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: December 8, 2020
    Assignee: FAR EASTERN NEW CENTURY CORPORATION
    Inventors: Shu-Wei Liu, Ruey-Fen Liao, Xin-An Lu
  • Publication number: 20190031579
    Abstract: A method for producing alkyl substituted benzene includes (a) providing a starting material selecting from the group consisting of furan, an alkyl substituted furan, 2-methylfuran, 2,3-dimethylfuran, 2,4-dimethylfuran, 2,5-dimethylfuran, 2,5-hexanedione, and combinations thereof, and (b) subjecting the starting material to a cycloaddition reaction with a monoene in the absence of solvent and in the presence of the metal triflate catalyst to produce an alkyl substituted benzene.
    Type: Application
    Filed: November 28, 2017
    Publication date: January 31, 2019
    Inventors: Shu-Wei Liu, Ruey-Fen Liao, Xin-An Lu
  • Publication number: 20070290105
    Abstract: A suction disc unit, especially a suction disc unit that can be adsorbed on a smooth surface to support a hung article, it comprises a pressing lid, a suction disc, a link and a pressing rod; wherein the pressing rod at least has a first eccentric protruding portion and a second eccentric protruding portion; when the pressing lid is pulled up to make abutment of the suction disc against the smooth surface by pushing of the pressing rod, the air in the gap between the suction disc and the smooth surface is removed as much as it can; when the pressing rod is pressed down, the pressing lid abuts against the periphery of the suction disc, and the central portion of the suction disc is pulled up tight, the air pressure in the gap is much lower than that of the atmosphere to thereby induce a strong suction force, and thereby to increase the bearing strength of the suction disc unit.
    Type: Application
    Filed: June 16, 2006
    Publication date: December 20, 2007
    Applicant: COMART CORPORATION
    Inventor: Shu-Wei Liu
  • Patent number: 6229460
    Abstract: A method of generating a symmetrical reversible variable length code. This symmetrical reversible variable length code is derived from an original variable length code. Compared with the conventional generating method, the novel method is independent of the bit alignment patterns of the codeword of the original variable length code. In addition, the assignment of codewords of the symmetrical reversible variable length code is performed by a selection priority. Therefore, the overall coding efficiency is improved.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: May 8, 2001
    Assignee: Cyberlink Corporation
    Inventors: Chien-Wu Tsai, Ja-Ling Wu, Shu-Wei Liu