Patents by Inventor Kwang Myung Cho

Kwang Myung Cho 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: 8551742
    Abstract: Described herein are microorganisms that produce methionine and related products from endogenous genes in a transsulfuration pathway, as well as from exogenous genes providing a direct sulfhydrylation pathway. Novel genes that are useful for methionine and SAMe production are disclosed.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: October 8, 2013
    Assignee: CJ Cheiljedang Corporation
    Inventors: Brian Brazeau, Jin-Sook Chang, Kwang Myung Cho, Young Wook Cho, Mervyn Desouza, Holly J. Jessen, So-Young Kim, Wei Niu, Fernando A. Sanchez-Riera, Yong-Uk Shin, Hyewon Um
  • Publication number: 20130260424
    Abstract: Described herein are microorganisms that produce methionine and related products from endogenous genes in a transsulfuration pathway, as well as from exogenous genes providing a direct sulfhydrylation pathway. Novel genes that are useful for methionine and SAMe production are disclosed.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 3, 2013
    Applicant: CJ Cheiljedang Corporation
    Inventors: Brian BRAZEAU, Jin-Sook Chang, Kwang Myung Cho, Young Wook Cho, Mervyn Desouza, Holly J. Jessen, So-Young Kim, Wei Niu, Fernando A. Sanchez-Reira, Yong-Uk Shin, Hyewon Um
  • Publication number: 20130130341
    Abstract: The disclosure provides a process that converts CO2 to higher alcohols (e.g. isobutanol) using electricity as the energy source. This process stores electricity (e.g. from solar energy, nuclear energy, and the like) in liquid fuels that can be used as high octane number gasoline substitutes. Instead of deriving reducing power from photosynthesis, this process derives reducing power from electrically generated mediators, either H2 or formate. H2 can be derived from electrolysis of water. Formate can be generated by electrochemical reduction of CO2. After delivering the reducing power in the cell, formate becomes CO2 and recycles back. Therefore, the biological CO2 fixation process can occur in the dark.
    Type: Application
    Filed: January 15, 2011
    Publication date: May 23, 2013
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: James C. Liao, Kwang Myung Cho
  • Patent number: 8426171
    Abstract: The present invention relates to a method for producing L-methionine and organic acid comprising the following steps: Step 1) preparing a strain producing L-methionine precursor and producing L-methionine precursor by the fermentation of the strain; Step 2) producing L-methionine and organic acid by the enzyme reaction process with the L-methionine precursor as a substrate, and microorganism strains used in each step.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: April 23, 2013
    Assignee: CJ Cheiljedang Corporation
    Inventors: So-young Kim, Kwang-myung Cho, Yong-uk Shin, Hye-won Um, Kyung-oh Choi, Jin-sook Chang, Young-wook Cho, Young-hoon Park
  • Patent number: 8426165
    Abstract: The present invention relates to a method for producing fermentation product from various carbon sources containing glycerol using Corynebacteria. More particularly, the present invention relates to a method for producing fermentation product from carbon sources containing glycerol or a part of glycerol with high yield and high productivity, by fermenting Corynebacteria introduced with the foreign gene glpDFK facilitating the use of glycerol and accumulating industrially useful amino acids in the culture medium.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: April 23, 2013
    Assignee: CJ Cheiljedang Corporation
    Inventors: Kwang-myung Cho, Kyung-oh Choi, Hyun-ae Bae
  • Publication number: 20130029386
    Abstract: Healthcare costs are a significant worldwide, with many patients being denied medications because of their high prices. One approach to addressing this problem involves the biosynthesis of chiral drug intermediates, an environmentally friendly solution that can be used to generate pharmaceuticals at much lower costs than conventional techniques. In this context, embodiments of the invention comprise methods and materials designed to allow microorganisms to biosynthesize the nonnatural amino acid L-homoalanine. As is known in the art, L-homoalanine is a chiral precursor of a variety of pharmaceutically valuable compounds including the anticonvulsant medications levetiracetam (sold under the trade name Keppra®) and brivaracetam, as well as ethambutol, a bacteriostatic antimycobacterial drug used to treat tuberculosis. Consequently, embodiments of the invention can be used in low cost, environmentally friendly processes to generate these and other valuable compounds.
    Type: Application
    Filed: February 25, 2011
    Publication date: January 31, 2013
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: James C. Liao, Kechun Zhang, Kwang Myung Cho
  • Patent number: 8187840
    Abstract: The present invention relates to a microorganism producing inosine, which is one of purine nucleoside, an important material for 5?-inosinic acid synthesis, and method for producing inosine using the same. More particularly, the present invention relates to a recombinant microorganism of Corynebacterium genus producing inosine at high concentration by inactivating the gene encoding nucleoside hydrolase II and by enhancing the expression of the gene encoding 5?-nucleotidase, which still retains the characteristics of Corynebacterium ammoniagenes CJIP2401 (KCCM-10610).
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: May 29, 2012
    Assignee: CJ Cheiljedang Corporation
    Inventors: Young-hoon Park, Kwang-myung Cho, Hee-jong Lee, Jin-nam Lee
  • Patent number: 8168422
    Abstract: The present invention relates to a microorganism producing inosine, which is one of purine nucleoside, an important material for 5?-inosinic acid synthesis, and method for producing inosine using the same. More particularly, the present invention relates to a recombinant microorganism of Corynebacterium genus producing inosine at high concentration by inactivating the gene encoding nucleoside hydrolase II and by enhancing the expression of the gene encoding 5?-nucleotidase, which still retains the characteristics of Corynebacterium ammoniagenes CJIP2401 (KCCM-10610).
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: May 1, 2012
    Assignee: CJ Cheiljedang Corporation
    Inventors: Young-hoon Park, Kwang-myung Cho, Hee-jong Lee, Jin-nam Lee
  • Publication number: 20110318783
    Abstract: The present invention relates to a microorganism producing inosine, which is one of purine nucleoside, an important material for 5?-inosinic acid synthesis, and method for producing inosine using the same. More particularly, the present invention relates to a recombinant microorganism of Corynebacterium genus producing inosine at high concentration by inactivating the gene encoding nucleoside hydrolase II and by enhancing the expression of the gene encoding 5?-nucleotidase, which still retains the characteristics of Corynebacterium ammoniagenes CJIP2401 (KCCM-10610).
    Type: Application
    Filed: September 9, 2011
    Publication date: December 29, 2011
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Young-hoon Park, Kwang-myung Cho, Hee-jong Lee, Jin-nam Lee
  • Publication number: 20110183383
    Abstract: Described herein are microorganisms that produce methionine and related products from endogenous genes in a transsulfuration pathway, as well as from exogenous genes providing a direct sulfhydrylation pathway. Novel genes that are useful for methionine and SAMe production are disclosed.
    Type: Application
    Filed: April 11, 2007
    Publication date: July 28, 2011
    Applicant: CJ Cheijedang Corporation
    Inventors: Brian Brazeau, Jin-Sook Chang, Kwang Myung Cho, Young Wook Cho, Mervyn Desouza, Holly J. Jessen, So-Young Kim, Wei Niu, Fernando A. Sanchez-Riera, Yong-Uk Shin, Hyewon Um
  • Patent number: 7955823
    Abstract: Disclosed herein are mutant strains, KCCM-10784P and KCCM-10785P, which are obtained through gene manipulation of Corynebacterium glutamicum KFCC-11074, and a process of producing L-glutamic acid using the mutant strains. The mutant strains are capable of producing L-Glutamic acid at high yield.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: June 7, 2011
    Assignee: CJ CheilJedang Corporation
    Inventors: Chang hyun Jin, Ki-Hoon Oh, Kwang Myung Cho, Young Hoon Park
  • Publication number: 20110027840
    Abstract: Disclosed herein are mutant strains, KCCM-10784P and KCCM-10785P, which are obtained through gene manipulation of Corynebacterium glutamicum KFCC-11074, and a process of producing L-glutamic acid using the mutant strains. The mutant strains are capable of producing L-Glutamic acid at high yield.
    Type: Application
    Filed: October 11, 2007
    Publication date: February 3, 2011
    Applicant: CJ Cheiljedang Corporation
    Inventors: Chang hyun Jin, Ki-hoon Oh, Kwang Myung Cho, Young Hoon Park
  • Patent number: 7847134
    Abstract: Disclosed herein is a method for producing monohydric alcohols from monocarboxylic acids or derivatives thereof using a catalyst comprising ruthenium (Ru) and tin (Sn) using zinc oxide (ZnO) as both a catalyst support and an active promoter; a catalyst prepared by adding an inorganic binder such as silica, alumina or titania in a limited range to the catalyst comprising the above components in order to impart a shaping ability to the catalyst; or, a modified catalyst reformed by adding at least one reducing component selected from the group consisting of Co, Ni, Cu, Ag, Rh, Pd, Re, Ir, and Pt to the catalyst in order to improve the reducing ability of the catalyst.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: December 7, 2010
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Jung Ho Lee, Jong San Chang, Young Kyu Hwang, Hyun Kwan Shin, Kwang Myung Cho, Bong Keun Song, Yong Hwan Kim
  • Patent number: 7790424
    Abstract: Disclosed herein are a method of preparing an L-methionine production strain by overexpressing proteins involved in L-methionine biosynthesis in an L-threonine production strain, a strain prepared by the method, and a method of producing L-methionine using the strain.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: September 7, 2010
    Assignee: CJ Cheiljedang Corporation
    Inventors: Young Hoon Park, Kwang Myung Cho, Yong-Uk Shin, Hyewon Um
  • Publication number: 20100184164
    Abstract: The present invention relates to a method for producing L-methionine and organic acid comprising the following steps: Step 1) preparing a strain producing L-methionine precursor and producing L-methionine precursor by the fermentation of the strain; Step 2) producing L-methionine and organic acid by the enzyme reaction process with the L-methionine precursor as a substrate, and microorganism strains used in each step.
    Type: Application
    Filed: July 30, 2007
    Publication date: July 22, 2010
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: So-young Kim, Kwang-myung Cho, Yong-uk Shin, Hye-won Um, Kyung-oh Choi, Jin-sook Chang, Young-wook Cho, Young-hoon Park
  • Publication number: 20100129884
    Abstract: The present invention relates to a method for producing fermentation product from various carbon sources containing glycerol using Corynebacteria. More particularly, the present invention relates to a method for producing fermentation product from carbon sources containing glycerol or a part of glycerol with high yield and high productivity, by fermenting Corynebacteria introduced with the foreign gene glpDFK facilitating the use of glycerol and accumulating industrially useful amino acids in the culture medium.
    Type: Application
    Filed: January 22, 2008
    Publication date: May 27, 2010
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Kwang-myung Cho, Kyung-oh Choi, Hyun-ae Bae
  • Publication number: 20100113843
    Abstract: Disclosed herein is a method for producing monohydric alcohols from monocarboxylic acids or derivatives thereof using a catalyst comprising ruthenium (Ru) and tin (Sn) using zinc oxide (ZnO) as both a catalyst support and an active promoter; a catalyst prepared by adding an inorganic binder such as silica, alumina or titania in a limited range to the catalyst comprising the above components in order to impart a shaping ability to the catalyst; or, a modified catalyst reformed by adding at least one reducing component selected from the group consisting of Co, Ni, Cu, Ag, Rh, Pd, Re, Ir, and Pt to the catalyst in order to improve the reducing ability of the catalyst.
    Type: Application
    Filed: February 27, 2009
    Publication date: May 6, 2010
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jung Ho Lee, Jong San Chang, Young Kyu Hwang, Hyun Kwan Shin, Kwang Myung Cho, Bong Keun Song, Yong Hwan Kim
  • Publication number: 20100081173
    Abstract: The present invention relates to a microorganism producing inosine, which is one of purine nucleoside, an important material for 5?-inosinic acid synthesis, and method for producing inosine using the same. More particularly, the present invention relates to a recombinant microorganism of Corynebacterium genus producing inosine at high concentration by inactivating the gene encoding nucleoside hydrolase II and by enhancing the expression of the gene encoding 5?-nucleotidase, which still retains the characteristics of Corynebacterium ammoniagenes CJIP2401 (KCCM-10610).
    Type: Application
    Filed: January 15, 2008
    Publication date: April 1, 2010
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Young-hoon Park, Kwang-myung Cho, Hee-jong Lee, Jin-nam Lee
  • Patent number: 7682814
    Abstract: The present invention relates to a method for producing lactic acid with high concentration and high yield using Lactobacillus paracasei CJLA0310 KCCM-10542 that is separated and identified from Kimchi. Lactic acid is a very important organic acid with a wide range of applications including food additive such as food preservative, condiment or acidifier, and industrial fields such as cosmetics, chemistry, metals, electronics, fabrics, dyeing textiles, and pharmaceutical industries. Particularly, lactic acid is an essential ingredient of polylactic acid, one of biodegradable plastics to replace recalcitrant non-biodegradable plastics which are main causes of environmental contamination.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: March 23, 2010
    Assignee: CJ Cheiljedang Corp.
    Inventors: Young Hoon Park, Kwang Myung Cho, Hye Won Kim, Dae Chol Kim
  • Publication number: 20100062498
    Abstract: The present invention relates to a polypeptide capable of increasing the production of L-methionine in a microorganism. In particular, the present invention relates to an YgaZ and YgaH polypeptide or a complex thereof, referred to herein as YgaZH polypeptide, which are novel putative L-methionine exporters, polynucleotides encoding the same, a recombinant vector comprising the polynucleotide, a microorganism transformed with the recombinant vector, and a method for producing L-methionine and/or S-adenosyl-methionine, comprising the steps of culturing the transformed microorganism to produce L-methionine and/or S-adenosyl-methionine, and isolating L-methionine and/or S-adenosyl-methionine.
    Type: Application
    Filed: December 28, 2007
    Publication date: March 11, 2010
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Young Hoon Park, Kwang Myung Cho, So Young Kim, Yong Uk Shin, Hye Won Um