Patents by Inventor Seizaburo Shiraga

Seizaburo Shiraga 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 L-Amino Acid
    Publication number: 20150218605
    Abstract: A method for producing an L-amino acid using a fatty acid as the carbon source is provided. An L-amino acid is produced by culturing a bacterium belonging to the family Enterobacteriaceae and having an L-amino acid-producing ability, which has been introduced with the lcfA gene, in a medium containing a fatty acid, and collecting the L-amino acid from the medium.
    Type: Application
    Filed: April 15, 2015
    Publication date: August 6, 2015
    Applicant: AJINOMOTO CO., INC.
    Inventors: Yasushi Hoshino, Yukiko Miyagawa, Seizaburo Shiraga
  • Method for Producing L-Amino Acid
    Publication number: 20150211033
    Abstract: A method for producing an L-amino acid using linoleic acid as the carbon source is provided. An L-amino acid is produced by culturing a bacterium belonging to the family Enterobacteriaceae and having an L-amino acid-producing ability, which has been modified so that the 2,4-dienoyl-CoA reductase activity is increased, in a medium containing linoleic acid, and collecting the L-amino acid from the medium.
    Type: Application
    Filed: April 15, 2015
    Publication date: July 30, 2015
    Applicant: AJINOMOTO CO., INC.
    Inventors: Yukiko Miyagawa, Yasushi Hoshino, Takuya Okada, Seizaburo Shiraga
  • Method for producing an L-amino acid
    Patent number: 8551741
    Abstract: An L-amino acid is produced by culturing a bacterium of the Enterobacteriaceae family which has an L-amino acid-producing ability in a medium containing fatty acids as the carbon source, particularly fatty acids which have been subjected to emulsification or homogenization, to thereby produce and accumulate the L-amino acid in a culture medium; and collecting the L-amino acid from the culture medium.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: October 8, 2013
    Assignee: Ajinomoto Co., Inc.
    Inventors: Yoshihiro Usuda, Seizaburo Shiraga, Kazuhiko Matsui, Shigeo Suzuki
  • Microorganism producing an amino acid of the L-glutamic acid family and a method for producing the amino acid
    Patent number: 8080396
    Abstract: A microorganism is cultured in a medium, and is able to produce one or two or more kinds of L-amino acids including L-glutamic acid, L-glutamine, L-proline, L-ornithine, L-citrulline and L-arginine, and is modified to increase ?-ketoglutarate synthase activity. The L-amino acids are collected from the medium or the cells.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: December 20, 2011
    Assignee: Ajinomoto Co., Inc.
    Inventors: Seizaburo Shiraga, Noriko Murayama, Hiroshi Izui, Hisao Ito, Hisashi Yasueda, Yoshihiro Usuda, Kazuhiko Matsui
  • MICROORGANISM PRODUCING AN AMINO ACID OF THE L-GLUTAMIC ACID FAMILY AND A METHOD FOR PRODUCING THE AMINO ACID
    Publication number: 20100062497
    Abstract: A microorganism is cultured in a medium, and is able to produce one or two or more kinds of L-amino acids including L-glutamic acid, L-glutamine, L-proline, L-ornithine, L-citrulline and L-arginine, and is modified to increase ?-ketoglutarate synthase activity. The L-amino acids are collected from the medium or the cells.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 11, 2010
    Inventors: Seizaburo Shiraga, Noriko Murayama, Hiroshi Izui, Hisao Ito, Hisashi Yasueda, Yoshihiro Usuda, Kazuhiko Matsui
  • METHOD FOR PRODUCING AN L-AMINO ACID
    Publication number: 20090291478
    Abstract: An L-amino acid is produced by culturing a bacterium of the Enterobacteriaceae family which has an L-amino acid-producing ability in a medium containing fatty acids as the carbon source, particularly fatty acids which have been subjected to emulsification or homogenization, to thereby produce and accumulate the L-amino acid in a culture medium; and collecting the L-amino acid from the culture medium.
    Type: Application
    Filed: June 5, 2009
    Publication date: November 26, 2009
    Inventors: Yoshihiro Usuda, Seizaburo Shiraga, Kazuhiko Matsui, Shigeo Suzuki