Patents by Inventor Yuki Imabayashi

Yuki Imabayashi 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: 8524476
    Abstract: A method for manufacturing a product of a reaction catalyzed by a protein having 2-oxoglutarate-dependent enzyme activity such as (2S,3R,4S)-4-hydroxy-L-isoleucine or a salt thereof using a bacterium transformed with a DNA fragment containing a gene coding for a protein having 2-oxoglutarate-dependent enzyme activity such as L-isoleucine dioxygenase activity; and wherein said bacterium has the ability to produce a product such as (2S,3R,4S)-4-hydroxy-L-isoleucine.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: September 3, 2013
    Assignee: Ajinomoto Co., Inc.
    Inventors: Sergey Vasilievich Smirnov, Natalia Nikolaevna Samsonova, Veronika Aleksandrovna Kotliarova, Natalia Yurievna Rushkevich, Olga Sergeevna Beznoschenko, Tatyana Aleksandrovna Bachina, Yuki Imabayashi, Masakazu Sugiyama, Shunichi Suzuki
  • Publication number: 20100330622
    Abstract: A method for manufacturing a product of a reaction catalyzed by a protein having 2-oxoglutarate-dependent enzyme activity such as (2S,3R,4S)-4-hydroxy-L-isoleucine or a salt thereof using a bacterium transformed with a DNA fragment containing a gene coding for a protein having 2-oxoglutarate-dependent enzyme activity such as L-isoleucine dioxygenase activity; and wherein said bacterium has the ability to produce a product such as (2S,3R,4S)-4-hydroxy-L-isoleucine.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 30, 2010
    Inventors: Sergey Vasilievich Smirnov, Natalia Nikolaevna Samsonova, Veronika Aleksandrovna Kotliarova, Natalia Yurievna Rushkevich, Olga Sergeevna Beznoschenko, Tatyana Aleksandrovna Bachina, Yuki Imabayashi, Masakazu Sugiyama, Shunichi Suzuki
  • Patent number: 7858348
    Abstract: The present invention provides genes that encode the N-acetyl-(R,S)-?-amino acid acylases. The N-acetyl-(R,S)-?-amino acid acylases were isolated and purified from bacterial cells and the nucleotide sequences were determined. A host, such as Escherichia coli, was used to construct a high-expression system for these genes. The N-acetyl-(R)-?-amino acid acylase produced by Burkholderia sp. AJ110349 (FERM BP-10366) includes, for example, the protein having the amino acid sequence shown in SEQ. ID. NO. 8. The gene encoding this enzyme includes, for example, the DNA having the nucleotide sequence as shown in SEQ. ID. NO. 7. The N-acetyl-(S)-?-amino acid acylase produced by Burkholderia sp. AJ110349 (FERM BP-10366) includes, for example, the protein having the amino acid sequence shown in SEQ. ID. NO. 10. The gene encoding this enzyme includes, for example, the DNA having the nucleotide sequence shown inshown in SEQ. ID. NO. 9. The N-acetyl-(R)-?-amino acid acylase produced by Variovorax sp.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: December 28, 2010
    Assignee: Ajinomoto Co., Inc.
    Inventors: Shunichi Suzuki, Yuki Imabayashi, Kunihiko Watanabe, Hisashi Kawasaki, Tsuyoshi Nakamatsu
  • Patent number: 7851187
    Abstract: The present invention provides a new method for producing serine derivatives and their optically-activated derivatives in a convenient manner. In the presence of an enzyme, an L-?-amino acid of formula (I): (in the formula (I), R1 is a hydrocarbon group) is reacted with an aldehyde of formula (II): (in the formula (II), R2 is a hydrocarbon) to produce an L-serine derivative of formula (III). .
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: December 14, 2010
    Assignee: Ajinomoto Co., Inc.
    Inventors: Shinji Kuroda, Hiroyuki Nozaki, Kunihiko Watanabe, Kenzo Yokozeki, Yuki Imabayashi
  • Publication number: 20090170171
    Abstract: The present invention provides a new method for producing serine derivatives and their optically-activated derivatives in a convenient manner. In the presence of an enzyme, an L-?-amino acid of formula (I): (in the formula (I), R1 is a hydrocarbon group) is reacted with an aldehyde of formula (II): (in the formula (II), R2 is a hydrocarbon) to produce an L-serine derivative of formula (III).
    Type: Application
    Filed: November 20, 2007
    Publication date: July 2, 2009
    Inventors: Shinji Kuroda, Hiroyuki Nozaki, Kunihiko Watanabe, Kenzo Yokozeki, Yuki Imabayashi
  • Publication number: 20080241895
    Abstract: The present invention provides genes that encode the N-acetyl-(R,S)-?-amino acid acylases. The N-acetyl-(R,S)-?-amino acid acylases were isolated and purified from bacterial cells and the nucleotide sequences were determined. A host, such as Escherichia coli, was used to construct a high-expression system for these genes. The N-acetyl-(R)-?-amino acid acylase produced by Burkholderia sp. AJ110349 (FERM BP-10366) includes, for example, the protein having the amino acid sequence shown in SEQ. ID. NO. 8. The gene encoding this enzyme includes, for example, the DNA having the nucleotide sequence as shown in SEQ. ID. NO. 7. The N-acetyl-(S)-?-amino acid acylase produced by Burkholderia sp. AJ110349 (FERM BP-10366) includes, for example, the protein having the amino acid sequence shown in SEQ. ID. NO. 10. The gene encoding this enzyme includes, for example, the DNA having the nucleotide sequence shown inshown in SEQ. ID. NO. 9. The N-acetyl-(R)-?-amino acid acylase produced by Variovorax sp.
    Type: Application
    Filed: July 24, 2007
    Publication date: October 2, 2008
    Inventors: Shunichi Suzuki, Yuki Imabayashi, Kunihiko Watanabe, Hisashi Kawasaki, Tsuyoshi Nakamatsu