Patents by Inventor Yuan-Chi Su

Yuan-Chi Su 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: 20060250966
    Abstract: A method for local area network (LAN) security includes monitoring connections between ports of a central device and a plurality peripheral devices which are respectively cable-connected to the ports, and disabling one of the ports after detecting a corresponding peripheral device is disconnected from the port.
    Type: Application
    Filed: May 3, 2005
    Publication date: November 9, 2006
    Inventor: Yuan-Chi Su
  • Publication number: 20040019172
    Abstract: The present invention relates to a method for the production of a biodegradable, water absorbable resin, by directly cross-linking of a culture broth with a cross-linker. The cross-linker contains two or more functional groups in the same molecule which can react with the functional groups in the culture broth. The present invention further relates to a biodegradable, water absorbable resin and its uses.
    Type: Application
    Filed: December 12, 2002
    Publication date: January 29, 2004
    Applicant: Tou-Hsiung Yang
    Inventors: Kun-Hsiang Yang, Shih-Ching Yang, Yuan-Chi Su, Toshio Hara
  • Patent number: 6171831
    Abstract: The method to produce itaconic acid is a solid-state fermentation method. Sugarcane pressmud or peeled sugarcane pressmud is the support used to adsorb liquid medium for the production of itaconic acid by an Aspergillus terreus mutant strain. This mutant strain was derived from Aspergillus terreus ATCC 10020 by successive mutation. Beside the remaining sucrose in the sugarcane pressmud, other carbon source can be added, i.e. glucose, fructose, sucrose, or starch hydrolysate. Appropriate amounts of nitrogen source, such as ammonium nitrate, or ammonium sulfate are added. Mineral salts, such as potassium dihydrogen phosphate, magnesium sulfate, calcium sulfate, ferric chloride, zinc sulfate, and copper sulfate can be added to the medium. The suitable amount of liquid medium that can be added to the support is 4 to 6 times its dry weight for the sugarcane pressmud and 8 to 14 times its dry weight for the peeled sugarcane pressmud. The optimal pH of the medium is between 2.0-3.0.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: January 9, 2001
    Assignee: National Science Council
    Inventors: Ying-Chieh Tsai, Min-Chang Huang, Shuen-Fuh Lin, Yuan-Chi Su