Patents by Inventor Tae Man Jung

Tae Man Jung 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 FOR PRODUCING HIGH CONCENTRATE LACTIC ACID BACTERIA WITH MEMBRANE BIOREACTOR AND FREEZE-DRIED, LACTIC ACID BACTERIA POWDER
    Publication number: 20120064606
    Abstract: The present invention relates to a method for producing lactic acid bacteria of a high concentration continuously using a membrane bioreactor. Specifically, the present invention relates to a method for producing lactic acid bacteria of a high concentration in a membrane bioreactor that comprises the steps of cultivating lactic acid bacteria in a membrane bioreactor including a membrane for product separation and a medium supply apparatus; supplying culture media to the bioreactor through the medium supply apparatus; continuously separating and discharging culture filtrate through the membrane for product separation; and recycling lactic acid bacteria continuously to the bioreactor. Additionally, the present invention relates to a method for producing lactic acid bacteria powder by freeze drying the bacteria produced in the membrane bioreactor using a freeze drying preservative composition.
    Type: Application
    Filed: July 7, 2009
    Publication date: March 15, 2012
    Applicant: AMBIO CO., LTD.
    Inventors: Young Chai Cho, Il Seong Jung, Tae Man Jung, Sil Ho Choi, Jin Young Choi
  • Microorganisms and methods for producing threonine
    Patent number: 6893860
    Abstract: The present invention relates to methods and microorganisms for producing L-threonine. In particular, the present invention relates to the production of L-threonine using microorganisms, and Escherichia coli strains in particular, which require L-methionine for growth and are L-isoleucine-leaky, are resistant to ?-methylserine, diaminosuccinic acid, L-glutamic acid, L-threonine, medium containing 60% of L-threonine fermentation mother liquid, azetidine and dehydroproline, and which are susceptible to fluoropyruvate.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: May 17, 2005
    Assignee: Daesang Corporation
    Inventors: Hyo Hoon Lee, Jae Chun Han, Tae Man Jung