Patents by Inventor Chieko Osumi

Chieko Osumi 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: 7455996
    Abstract: Raffinose is produced by allowing a raffinose synthase having the following properties to act on sucrose and galactinol: (1) action and substrate specificity: produces raffinose from sucrose and galactinol; (2) optimum pH: about 6 to 8; (3) optimum temperature: about 35 to 40° C.; (4) molecular weight: (i) about 75 kDa to 95 kDa estimated by gel filtration chromatography; (ii) about 90 kDa to 100 kDa estimated by polyacrylamide gel electrophoresis (Native PAGE); and (iii) about 90 kDa to 100 kDa estimated by SDS-polyacrylamide gel electrophoresis under a reduced condition (SDS-PAGE); and (5) inhibition: inhibited by iodoacetamide, N-ethylmaleimide, and myo-inositol.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: November 25, 2008
    Assignee: Ajinomoto Co., Inc.
    Inventors: Chieko Osumi, Jinshi Nozaki, Takao Kida
  • Patent number: 7250277
    Abstract: Raffinose is produced by allowing a raffinose synthase having the following properties to act on sucrose and galactinol: (1) action and substrate specificity: produces raffinose from sucrose and galactinol; (2) optimum pH: about 6 to 8; (3) optimum temperature: about 35 to 40° C.; (4) molecular weight: (i) about 75 kDa to 95 kDa estimated by gel filtration chromatography; (ii) about 90 kDa to 100 kDa estimated by polyacrylamide gel electrophoresis (Native PAGE); and (iii) about 90 kDa to 100 kDa estimated by SDS-polyacrylamide gel electrophoresis under a reduced condition (SDS-PAGE); and (5) inhibition: inhibited by iodoacetamide, N-ethylmaleimide, and myo-inositol.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: July 31, 2007
    Assignee: Ajinomoto Co., Inc.
    Inventors: Chieko Osumi, Jinshi Nozaki, Takao Kida
  • Publication number: 20050160497
    Abstract: Raffinose is produced by allowing a raffinose synthase having the following properties to act on sucrose and galactinol: (1) action and substrate specificity: produces raffinose from sucrose and galactinol; (2) optimum pH: about 6 to 8; (3) optimum temperature: about 35 to 40° C.; (4) molecular weight: (i) about 75 kDa to 95 kDa estimated by gel filtration chromatography; (ii) about 90 kDa to 100 kDa estimated by polyacrylamide gel electrophoresis (Native PAGE); and (iii) about 90 kDa to 100 kDa estimated by SDS-polyacrylamide gel electrophoresis under a reduced condition (SDS-PAGE); and (5) inhibition: inhibited by iodoacetamide, N-ethylmaleimide, and myo-inositol.
    Type: Application
    Filed: January 14, 2005
    Publication date: July 21, 2005
    Applicant: AJINOMOTO CO., INC.
    Inventors: Chieko Osumi, Jinshi Nozaki, Takao Kida
  • Publication number: 20050118300
    Abstract: Raffinose is produced by allowing a raffinose synthase having the following properties to act on sucrose and galactinol: (1) action and substrate specificity: produces raffinose from sucrose and galactinol; (2) optimum pH: about 6 to 8; (3) optimum temperature: about 35 to 40° C.; (4) molecular weight: (i) about 75 kDa to 95 kDa estimated by gel filtration chromatography; (ii) about 90 kDa to 100 kDa estimated by polyacrylamide gel electrophoresis (Native PAGE); and (iii) about 90 kDa to 100 kDa estimated by SDS-polyacrylamide gel electrophoresis under a reduced condition (SDS-PAGE); and (5) inhibition: inhibited by iodoacetamide, N-ethylmaleimide, and myo-inositol.
    Type: Application
    Filed: January 14, 2005
    Publication date: June 2, 2005
    Applicant: AJINOMOTO CO., INC.,
    Inventors: Chieko Osumi, Jinshi Nozaki, Takao Kida
  • Patent number: 6891084
    Abstract: The present invention provides a DNA encoding a raffinose synthase from soybean and vectors containing the same. Also provided are plants and host cells transformed with the DNA sequence and methods of altering the levels of raffinose family oligosaccharides in plants.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: May 10, 2005
    Assignee: Ajinomoto Co., Inc.
    Inventors: Chieko Osumi, Jinshi Nozaki, Takao Kida
  • Publication number: 20050066391
    Abstract: Raffinose is produced by allowing a raffinose synthase having the following properties to act on sucrose and galactinol: (1) action and substrate specificity: produces raffinose from sucrose and galactinol; (2) optimum pH: about 6 to 8; (3) optimum temperature: about 35 to 40° C.; (4) molecular weight: (i) about 75 kDa to 95 kDa estimated by gel filtration chromatography; (ii) about 90 kDa to 100 kDa estimated by polyacrylamide gel electrophoresis (Native PAGE); and (iii) about 90 kDa to 100 kDa estimated by SDS-polyacrylamide gel electrophoresis under a reduced condition (SDS-PAGE); and (5) inhibition: inhibited by iodoacetamide, N-ethylmaleimide, and myo-inositol.
    Type: Application
    Filed: September 24, 2004
    Publication date: March 24, 2005
    Applicant: AJINOMOTO CO. INC
    Inventors: Chieko Osumi, Jinshi Nozaki, Takao Kida
  • Publication number: 20050009165
    Abstract: Raffinose synthase purified from cucumber is allowed to act on sucrose and galactinol. Thus raffinose is efficiently produced. The function of endogenous raffinose synthase is regulated by transforming a plant with a chimeric gene comprising a raffinose synthase gene and a regulatory region expressible in the plant. Thus a plant, in which raffinose family oligosaccharides are decreased, is created.
    Type: Application
    Filed: August 20, 2004
    Publication date: January 13, 2005
    Applicant: AJINOMOTO CO. INC
    Inventors: Chieko Osumi, Jinshi Nozaki, Takao Kida
  • Patent number: 6166292
    Abstract: Raffinose synthase purified from cucumber is allowed to act on sucrose and galactinol. Thus raffinose is efficiently produced. The function of endogenous raffinose synthase is regulated by transforming a plant with a chimeric gene comprising a raffinose synthase gene and a regulatory region expressible in the plant. Thus a plant, in which raffinose family oligosaccharides are decreased, is created.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: December 26, 2000
    Assignee: Ajinomoto Co., Inc.
    Inventors: Chieko Osumi, Jinshi Nozaki, Takao Kida
  • Patent number: 4980285
    Abstract: A method for producing an L-amino acid, which comprises inserting a gene which codes for an enzyme which is utilized on the route of biosynthesis of an L-amino acid product into one of at least two plasmid vectors which have compatible replicating origins different from each other, inserting a second gene which codes for an enzyme different from the first enzyme on the route of biosynthesis of the L-amino acid into a second of the plasmid vectors; introducing the thus obtained recombinant plasmids into a strain of Coryneform bacteria; and culturing the thus transformed strain which is capable of producing the L-amino acid, said two enzymes being highly rate determining enzymes for the biosynthesis of L-amino acid.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: December 25, 1990
    Assignee: Ajinomoto Co., Inc.
    Inventors: Konosuke Sano, Chieko Osumi, Kazuhiko Matsui, Kiyoshi Miwa