Patents by Inventor Soo-Youn Hwang

Soo-Youn Hwang 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).

  • Patent number: 8993272
    Abstract: The present invention relates to a microorganisms of the genus Corynebacterium producing 5?-inosinic acid, in which the expression of genes encoding purine biosynthesis related enzymes is increased higher than the intrinsic expression, and to a method for producing 5?-inosinic acid, comprising culturing the microorganisms of the genus Corynebacterium with improved 5?-inosinic acid productivity.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: March 31, 2015
    Assignee: CJ Cheiljedang Corporation
    Inventors: Jeong Hwan Kim, Jung Gun Kwon, Tae Min Ahn, Soo Youn Hwang, Min Ji Baek, Na Ra Kwon, Nan Young Yoon, Ju Jeong Kim
  • Patent number: 8551736
    Abstract: A microorganism of the genus Corynebacterium having the ability to produce inosine in which the inosine catabolic pathway is blocked and that has a leaky adenine auxotrophic phenotype and further has a leaky guanine auxotrophic phenotype and a method of producing inosine, the method including culturing the microorganism of the genus Corynebacterium are disclosed.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: October 8, 2013
    Assignee: CJ Cheiljedang Corp.
    Inventors: Chul Ha Kim, Jong Soo Choi, Jeong Hwan Kim, Hyoung Seok Kim, Jung Gun Kwon, Tae Min Ahn, Soo Youn Hwang, Jae Ick Sim, Min Ji Baek, Na Ra Kwon, Hye Jin Choi
  • Patent number: 8465962
    Abstract: The present invention relates to a microorganism having an enhanced L-valine productivity and a method for producing L-valine using the same. More particularly, the present invention relates to a Corynebacterium glutamicum mutant strain that has resistance to L-valine and derivatives thereof so as to have an enhanced L-valine productivity, and a method for producing L-valine using the same.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: June 18, 2013
    Assignee: CJ Cheiljedang Corporation
    Inventors: Hye Won Kim, Ji-Hye Lee, Soo Youn Hwang, Jong Hyun Kim
  • Publication number: 20130045511
    Abstract: The present invention relates to a microorganism having an enhanced L-valine productivity and a method for producing L-valine using the same. More particularly, the present invention relates to a Corynebacterium glutamicum mutant strain that has resistance to L-valine and derivatives thereof so as to have an enhanced L-valine productivity, and a method for producing L-valine using the same.
    Type: Application
    Filed: December 2, 2011
    Publication date: February 21, 2013
    Applicant: CJ Cheiljedang Corporation
    Inventors: Hye Won Kim, Ji-Hye Lee, Soo Youn Hwang, Jong Hyun Kim
  • Publication number: 20120021466
    Abstract: The present invention relates to a microorganisms of the genus Corynebacterium producing 5?-inosinic acid, in which the expression of genes encoding purine biosynthesis related enzymes is increased higher than the intrinsic expression, and to a method for producing 5?-inosinic acid, comprising culturing the microorganisms of the genus Corynebacterium with improved 5?-inosinic acid productivity.
    Type: Application
    Filed: March 23, 2010
    Publication date: January 26, 2012
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Jeong Hwan Kim, Jung Gun Kwon, Tae Min Ahn, Soo Youn Hwang, Min Ji Baek, Na Ra Kwon, Nan Young Yoon, Ju Jeong Kim
  • Patent number: 8048648
    Abstract: The present invention relates to an L-arginine producing mutant strain, and a method for fabricating the same. In particular, the present invention relates to a polynucleotide comprising an argD2 gene (Ncgl2355) that is a putative gene of acetylornithine aminotransferase involved in arginine biosynthesis of Corynebacterium glutamicum, a polypeptide encoded by the polynucleotide, a recombinant vector comprising the polynucleotide, a transformant capable of producing L-arginine in a high yield, which is prepared by introducing the recombinant vector into an L-arginine producing host microorganism to overexpress the argD2 gene, and a method for producing L-arginine by culturing the transformant. The transformant of the present invention overexpresses the argD2 gene to produce L-arginine in a high yield, thereby being used in medicinal and pharmaceutical industries.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: November 1, 2011
    Assignee: CJ Cheil Jedang Corporation
    Inventors: Hye Won Kim, Hyejin Choi, Ji-Hye Lee, Soo Youn Hwang
  • Patent number: 8034602
    Abstract: Disclosed herein are a microorganism producing L-arginine and a method of producing L-arginine using the same. The microorganism is a mutant strain of the genus Corynebacterium, Corynebacterium glutamicum CJR0500. The method for L-arginine production comprises activating the mutant strain C. glutamicum CJR0500 in a fermentation medium at 30° C. for 16 hours and then culturing the activated mutant strain for 72 hours with shaking.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: October 11, 2011
    Assignee: CJ Cheiljedang Corporation
    Inventors: Young Hoon Park, Hye Won Kim, Ji-Hye Lee, Soo-Youn Hwang
  • Publication number: 20110003342
    Abstract: A microorganism of the genus Corynebacterium having the ability to produce inosine in which the inosine catabolic pathway is blocked and that has a leaky adenine auxotrophic phenotype and further has a leaky guanine auxotrophic phenotype and a method of producing inosine, the method including culturing the microorganism of the genus Corynebacterium are disclosed.
    Type: Application
    Filed: January 2, 2009
    Publication date: January 6, 2011
    Applicant: CJ CHEILJEDANG CORP.
    Inventors: Chul Ha Kim, Jong Soo Choi, Jeong Hwan Kim, Hyoung Seok Kim, Jung Gun Kwon, Tae Min Ahn, Soo Youn Hwang, Jae Ick Sim, Min Ji Baek, Na Ra Kwon, Hye Jin Choi
  • Publication number: 20100041109
    Abstract: The present invention relates to an L-arginine producing mutant strain, and a method for fabricating the same. In particular, the present invention relates to a polynucleotide comprising an argD2 gene (Ncgl2355) that is a putative gene of acetylornithine aminotransferase involved in arginine biosynthesis of Corynebacterium glutamicum, a polypeptide encoded by the polynucleotide, a recombinant vector comprising the polynucleotide, a transformant capable of producing L-arginine in a high yield, which is prepared by introducing the recombinant vector into an L-arginine producing host microorganism to overexpress the argD2 gene, and a method for producing L-arginine by culturing the transformant. The transformant of the present invention overexpresses the argD2 gene to produce L-arginine in a high yield, thereby being used in medicinal and pharmaceutical industries.
    Type: Application
    Filed: January 11, 2008
    Publication date: February 18, 2010
    Inventors: Hye Won Kim, Hyejin Choi, Ji-Hye Lee, Soo Youn Hwang
  • Patent number: 7662943
    Abstract: Provided are a promoter including at least one polynucleotide selected from the group consisting of SEQ ID NOS: 1 to 7, an expression cassette including the same, a vector including the expression cassette, a host cell including the vector, and a method of expressing a gene using the host cell.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: February 16, 2010
    Assignee: CJ Cheiljedang Corporation
    Inventors: Young-Hoon Park, Hyun-Soo Kim, Hye-Jin Choi, Jin-Ho Lee, Soo-Youn Hwang, Jae-Ick Sim, Tae-Sun Kang, Won-Sik Lee
  • Publication number: 20090311757
    Abstract: Disclosed herein are a microorganism producing L-arginine and a method of producing L-arginine using the same. The microorganism is a mutant strain of the genus Corynebacterium, Corynebacterium glutamicum CJR0500. The method for L-arginine production comprises activating the mutant strain C. glutamicum CJR0500 in a fermentation medium at 30° C. for 16 hours and then culturing the activated mutant strain for 72 hours with shaking.
    Type: Application
    Filed: July 12, 2007
    Publication date: December 17, 2009
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Young Hoon Park, Hye Won Kim, Ji-Hye Lee, Soo-Youn Hwang
  • Publication number: 20080138859
    Abstract: Provided are a promoter including at least one polynucleotide selected from the group consisting of SEQ ID NOS: 1 to 7, an expression cassette including the same, a vector including the expression cassette, a host cell including the vector, and a method of expressing a gene using the host cell.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 12, 2008
    Applicant: CJ CORPORATION
    Inventors: Young-Hoon Park, Hyun-Soo Kim, Hye-Jin Choi, Jin-Ho Lee, Soo-Youn Hwang, Jae-Ick Sim, Tae-Sun Kang, Won-Sik Lee
  • Patent number: 7244608
    Abstract: The present invention relates to a novel microorganism, Corynebacterium ammoniagenes strain CJIP009 having Accession No. KCCM-10226, which is capable of producing 5?-inosinic acid and a process for producing 5?-inosinic acid using the same.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: July 17, 2007
    Assignee: Cheil Jedang Corporation
    Inventors: Hyun-Soo Kim, Sung-Oh Chung, Jin-Ho Lee, Sung-Goo Kang, Jeong-Hwan Kim, Soo-Youn Hwang, Byung-Chon Lee, Jae-Chul Lee
  • Publication number: 20030054504
    Abstract: The present invention relates to a novel microorganism, Corynebacterium ammoniagenes strain CJIP009 having Accession No. KCCM-10226, which is capable of producing 5′-inosinic acid and a process for producing 5′-inosinic acid using the same.
    Type: Application
    Filed: August 23, 2002
    Publication date: March 20, 2003
    Inventors: Hyun-Soo Kim, Sung-Oh Chung, Jin-Ho Lee, Sung-Goo Kang, Jeong-Hwan Kim, Soo-Youn Hwang, Byung-Chon Lee, Jae-Chul Lee