Patents by Inventor Yuko Kuritani

Yuko Kuritani 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).

  • MODIFIED ß-GALACTOSIDASE
    Publication number: 20230279454
    Abstract: The usefulness of ?-galactosidases derived from Bacillus circulans is further enhanced. A modified ?-galactosidase in which one or more amino acids selected from the group consisting of proline 182 (P182), tyrosine 187 (Y187), serine 188 (S188), tryptophan 405 (W405), alanine 406 (A406), glutamine 407 (Q407), tyrosine 449 (Y449), threonine 483 (T483), serine 512 (S512), serine 531 (S531), threonine 533 (T533), serine 534 (S534), asparagine 550 (N550), glutamine 551 (Q551), tryptophan 593 (W593), tyrosine 598 (Y598), proline 602 (P602), proline 604 (P604), tyrosine 609 (Y609), lysine 612 (K612), and tyrosine 615 (Y615), or an amino acid(s) corresponding thereto, has/have been substituted by other amino acid in a ?-galactosidase consisting of the amino acid sequence of any of SEQ ID NOs. 1 to 4 or an amino acid sequence having 90% or more identity to the amino acid sequence set forth in any of SEQ ID NOs. 1 to 4.
    Type: Application
    Filed: December 14, 2022
    Publication date: September 7, 2023
    Applicant: AMANO ENZYME INC.
    Inventors: Genichi Nakamura, Yuko Kuritani, Satoru Ishihara, Tetsuya Takahashi
  • Modified ?-galactosidase
    Patent number: 11555214
    Abstract: The usefulness of ?-galactosidases derived from Bacillus circulans is further enhanced. A modified ?-galactosidase in which one or more amino acids selected from the group consisting of proline 182 (P182), tyrosine 187 (Y187), serine 188 (S188), tryptophan 405 (W405), alanine 406 (A406), glutamine 407 (Q407), tyrosine 449 (Y449), threonine 483 (T483), serine 512 (S512), serine 531 (S531), threonine 533 (T533), serine 534 (S534), asparagine 550 (N550), glutamine 551 (Q551), tryptophan 593 (W593), tyrosine 598 (Y598), proline 602 (P602), proline 604 (P604), tyrosine 609 (Y609), lysine 612 (K612), and tyrosine 615 (Y615), or an amino acid(s) corresponding thereto, has/have been substituted by other amino acid in a ?-galactosidase consisting of the amino acid sequence of any of SEQ ID NOs. 1 to 4 or an amino acid sequence having 90% or more identity to the amino acid sequence set forth in any of SEQ ID NOs. 1 to 4.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: January 17, 2023
    Assignee: AMANO ENZYME INC.
    Inventors: Genichi Nakamura, Yuko Kuritani, Satoru Ishihara, Tetsuya Takahashi
  • Nucleosidase
    Patent number: 11078470
    Abstract: It is an object of the present invention to provide a novel enzyme useful for producing low-purine foods or beverages. There is disclosed a nucleosidase comprising an amino acid sequence of SEQ ID NO: 1 or an amino acid sequence having 85% or more identity with the amino acid sequence, or an amino acid sequence of SEQ ID NO: 2 or an amino acid sequence having 88% or more identity with the amino acid sequence.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: August 3, 2021
    Assignees: AMANO ENZYME INC., SUNTORY HOLDINGS LIMITED
    Inventors: Keita Okuda, Toru Katase, Yuko Kuritani, Naoki Matsumoto, Tomoko Fujimura, Ikuma Mizuguchi, Takako Inui
  • MODIFIED ß-GALACTOSIDASE
    Publication number: 20200002739
    Abstract: The usefulness of ?-galactosidases derived from Bacillus circulans is further enhanced. A modified ?-galactosidase in which one or more amino acids selected from the group consisting of proline 182 (P182), tyrosine 187 (Y187), serine 188 (S188), tryptophan 405 (W405), alanine 406 (A406), glutamine 407 (Q407), tyrosine 449 (Y449), threonine 483 (T483), serine 512 (S512), serine 531 (S531), threonine 533 (T533), serine 534 (S534), asparagine 550 (N550), glutamine 551 (Q551), tryptophan 593 (W593), tyrosine 598 (Y598), proline 602 (P602), proline 604 (P604), tyrosine 609 (Y609), lysine 612 (K612), and tyrosine 615 (Y615), or an amino acid(s) corresponding thereto, has/have been substituted by other amino acid in a ?-galactosidase consisting of the amino acid sequence of any of SEQ ID NOs. 1 to 4 or an amino acid sequence having 90% or more identity to the amino acid sequence set forth in any of SEQ ID NOs. 1 to 4.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 2, 2020
    Inventors: Genichi Nakamura, Yuko Kuritani, Satoru Ishihara, Tetsuya Takahashi
  • Modified ?-galactosidase
    Patent number: 10465219
    Abstract: The usefulness of ?-galactosidases derived from Bacillus circulans is further enhanced. A modified ?-galactosidase in which one or more amino acids selected from the group consisting of proline 182 (P182), tyrosine 187 (Y187), serine 188 (S188), tryptophan 405 (W405), alanine 406 (A406), glutamine 407 (Q407), tyrosine 449 (Y449), threonine 483 (T483), serine 512 (S512), serine 531 (S531), threonine 533 (T533), serine 534 (S534), asparagine 550 (N550), glutamine 551 (Q551), tryptophan 593 (W593), tyrosine 598 (Y598), proline 602 (P602), proline 604 (P604), tyrosine 609 (Y609), lysine 612 (K612), and tyrosine 615 (Y615), or an amino acid(s) corresponding thereto, has/have been substituted by other amino acid in a ?-galactosidase consisting of the amino acid sequence of any of SEQ ID NOs. 1 to 4 or an amino acid sequence having 90% or more identity to the amino acid sequence set forth in any of SEQ ID NOs. 1 to 4.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: November 5, 2019
    Assignee: AMANO ENZYME INC.
    Inventors: Genichi Nakamura, Yuko Kuritani, Satoru Ishihara, Tetsuya Takahashi
  • NUCLEOSIDASE
    Publication number: 20190177712
    Abstract: It is an object of the present invention to provide a novel enzyme useful for producing low-purine foods or beverages. There is disclosed a nucleosidase comprising an amino acid sequence of SEQ ID NO: 1 or an amino acid sequence having 85% or more identity with the amino acid sequence, or an amino acid sequence of SEQ ID NO: 2 or an amino acid sequence having 88% or more identity with the amino acid sequence.
    Type: Application
    Filed: August 15, 2017
    Publication date: June 13, 2019
    Inventors: Keita Okuda, Toru Katase, Yuko Kuritani, Naoki Matsumoto, Tomoko Fujimura, Ikuma Mizuguchi, Takako Inui
  • MODIFIED ß-GALACTOSIDASE
    Publication number: 20160251689
    Abstract: The usefulness of ?-galactosidases derived from Bacillus circulans is further enhanced. A modified ?-galactosidase in which one or more amino acids selected from the group consisting of proline 182 (P182), tyrosine 187 (Y187), serine 188 (S188), tryptophan 405 (W405), alanine 406 (A406), glutamine 407 (Q407), tyrosine 449 (Y449), threonine 483 (T483), serine 512 (S512), serine 531 (S531), serine 533 (S533), serine 534 (S534), asparagine 550 (N550), glutamine 551 (Q551), tryptophan 593 (W593), tyrosine 598 (Y598), proline 602 (P602), proline 604 (P604), tyrosine 609 (Y609), lysine 612 (K612), and tyrosine 615 (Y615), or an amino acid(s) corresponding thereto, has/have been substituted by other amino acid in a ?-galactosidase consisting of the amino acid sequence of any of SEQ ID NOs. 1 to 4 or an amino acid sequence having 90% or more identity to the amino acid sequence set forth in any of SEQ ID NOs. 1 to 4.
    Type: Application
    Filed: September 26, 2014
    Publication date: September 1, 2016
    Inventors: Genichi Nakamura, Yuko Kuritani, Satoru Ishihara, Tetsuya Takahashi