Patents by Inventor Keiko Onodera

Keiko Onodera 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).

  • Alkane polyol dehydrogenase
    Patent number: 7771977
    Abstract: Disclosed is a protein selected from: (1) a protein comprising the amino acid sequence of SEQ ID NO: 1 in the Sequence Listing; (2) a protein comprising the amino acid sequence of SEQ ID NO: 1 in the Sequence Listing with the deletion, addition, insertion and/or substitution of one or more amino acid residues, and having an alkane polyol dehydrogenase activity; or (3) a protein comprising an amino acid sequence having 80% or more identity with the amino acid sequence of SEQ ID NO: 1 in the Sequence Listing, and having an alkane polyol dehydrogenase activity. Also disclosed is a process for producing an alcohol, a ketone, an optically-active alcohol, dihydroxyacetone or a derivative thereof, using the protein.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: August 10, 2010
    Assignee: National University Corporation Nara Institute of Science and Technology
    Inventors: Keiko Onodera, Yoshiki Tani
  • Novel alkane polyol dehydrogenase
    Publication number: 20090263862
    Abstract: Disclosed is a protein selected from: (1) a protein comprising the amino acid sequence of SEQ ID NO: 1 in the Sequence Listing; (2) a protein comprising the amino acid sequence of SEQ ID NO: 1 in the Sequence Listing with the deletion, addition, insertion and/or substitution of one or more amino acid residues, and having an alkane polyol dehydrogenase activity; or (3) a protein comprising an amino acid sequence having 80% or more identity with the amino acid sequence of SEQ ID NO: 1 in the Sequence Listing, and having an alkane polyol dehydrogenase activity. Also disclosed is a process for producing an alcohol, a ketone, an optically-active alcohol, dihydroxyacetone or a derivative thereof, using the protein.
    Type: Application
    Filed: April 13, 2007
    Publication date: October 22, 2009
    Inventors: Keiko Onodera, Yoshiki Tani
  • (R)-2,3-butanediol dehydrogenase
    Patent number: 6818426
    Abstract: The objective of the present invention is to produce a novel (R)-2,3-butanediol dehydrogenase useful for the production of ketones, alcohols, and particularly optically active vicinal diols. It has been found that Pichia angusta produces novel (R)-2,3-butanediol dehydrogenase that shows the high activity and high stereoselectivity. Further, polynucleotide encoding this (R)-2,3-butanediol dehydrogenase was cloned, and the nucleotide sequence thereof was determined. The expression of the glycerol dehydrogenase was carried out in heterologous microorganisms.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: November 16, 2004
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Hiroaki Yamamoto, Keiko Onodera, Yoshiki Tani
  • Novel (R)-2,3-butanediol dehydrogenase
    Publication number: 20020160468
    Abstract: The objective of the present invention is to produce a novel (R)-2,3-butanediol dehydrogenase useful for the production of ketones, alcohols, and particularly optically active vicinal diols. It has been found that Pichia angusta produces novel (R)-2,3-butanediol dehydrogenase that shows the high activity and high stereoselectivity. Further, polynucleotide encoding this (R)-2,3-butanediol dehydrogenase was cloned, and the nucleotide sequence thereof was determined. The expression of the glycerol dehydrogenase was carried out in heterologous microorganisms.
    Type: Application
    Filed: October 30, 2001
    Publication date: October 31, 2002
    Inventors: Hiroaki Yamamoto, Keiko Onodera, Yoshiki Tani