Patents by Inventor Dae-Joong Kang

Dae-Joong Kang 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).

  • Obligately symbiotic thermophile SC-1 producing thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase
    Patent number: 7323328
    Abstract: The present invention relates to a novel obligately symbiotic thermophile Symbiobacterium toebii SC-1 (Accession NO: KCTC 0685BP), and a thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1. The present invention also relates to a pure culture method of Symbiobacterium toebii SC-1, a method of growth measurement for Symbiobacterium toebii SC-1 and its relative symbiotic bacteria showing low-growth yield using nitrate respiration, and a screening method of relative symbiotic strains of Symbiobacterium toebii SC-1 from the environment using a specific antibody to it. Therefore, the thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1 in this invention can provide more stable catalysts in enzymatic biotransformation processes which enzymatically produce valuable medico-amino acids 3,4-dehydroxy-L-phenylalanine (L-DOPA) and L-tryptophan.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: January 29, 2008
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Moon-Hee Sung, Seung-Goo Lee, Sung-Keun Rhee, Seung-Pyo Hong, Dae-Joong Kang, Su-Mi Kim, Chul-Joong Kim, Jin-Woo Bae, Che Ok Jeon, Joong-Jae Kim, Kwang Kim, Jae Jun Song
  • Obligately symbiotic thermophile SC-1 producing thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase and a method for screening its relative bacteria
    Patent number: 6967087
    Abstract: The present invention relates to a novel obligately symbiotic thermophile Symbiobacterium toebii SC-1(Accession NO: KCTC 0685BP), and a thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1. The present invention also relates to a pure culture method of Symbiobacterium toebii SC-1, a method of growth measurement for Symbiobacterium toebu SC-1 and its relative symbiotic bacteria showing low-growth yield using nitrate respiration, and a screening method of relative symbiotic strains of Symbiobacterium toebii SC-1 from the environment using a specific antibody to it. Therefore, the thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1 in this invention can provide more stable catalysts in enzymatic biotransformation processes which enzymatically produce valuable medico-amino acids 3,4-dehydroxy-L-phenylalanine (L-DOPA) and L-tryptophan.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: November 22, 2005
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Moon-Hee Sung, Seung-Goo Lee, Sung-Keun Rhee, Seung-Pyo Hong, Dae-Joong Kang, Su-Mi Kim, Chul-Joong Kim, Jin-Woo Bae, Che Ok Jeon, Joong-Jae Kim, Kwang Kim, Jae Jun Song
  • Obligately symbiotic thermophile Symbiobacterium toebii SC-1 producing thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase
    Publication number: 20050255090
    Abstract: The present invention relates to a novel obligately symbiotic thermophile Symbiobacterium toebii SC-1 (Accession NO: KCTC 0685BP), and a thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1. The present invention also relates to a pure culture method of Symbiobacterium toebii SC-1, a method of growth measurement for Symbiobacterium toebii SC-1 and its relative symbiotic bacteria showing low-growth yield using nitrate respiration, and a screening method of relative symbiotic strains of Symbiobacterium toebii SC-1 from the environment using a specific antibody to it. Therefore, the thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1 in this invention can provide more stable catalysts in enzymatic biotransformation processes which enzymatically produce valuable medico-amino acids 3,4-dehydroxy-L-phenylalanine (L-DOPA) and L-tryptophan.
    Type: Application
    Filed: July 21, 2005
    Publication date: November 17, 2005
    Inventors: Moon-Hee Sung, Seung-Goo Lee, Sung-Keun Rhee, Seung-Pyo Hong, Dae-Joong Kang, Su-Mi Kim, Chul-Joong Kim, Jin-Woo Bae, Che Jeon, Joong-Jae Kim, Kwang Kim, Jae Song