Patents by Inventor Ayaka Atsumi

Ayaka Atsumi 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: 10883133
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 5, 2021
    Assignees: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori Omura, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Patent number: 10851398
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: December 1, 2020
    Assignees: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori Omura, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Patent number: 10815515
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: October 27, 2020
    Assignees: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori Omura, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Patent number: 10808274
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: October 20, 2020
    Assignees: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori Omura, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Patent number: 10738341
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: August 11, 2020
    Assignees: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori Omura, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Patent number: 10669565
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 2, 2020
    Assignees: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori Omura, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Patent number: 10648011
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: May 12, 2020
    Assignees: Ikeda Food Research Co., ltd., PHC Corporation
    Inventors: Hironori Omura, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Patent number: 10626434
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 21, 2020
    Assignees: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori Omura, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Patent number: 10626433
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: April 21, 2020
    Assignees: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori Omura, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Publication number: 20190177762
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: March 21, 2018
    Publication date: June 13, 2019
    Applicants: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori OMURA, Hirokazu SANADA, Takako YADA, Ayaka ATSUMI, Tetsunari MORITA, Emi ISHIMARU
  • Publication number: 20190177763
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: March 21, 2018
    Publication date: June 13, 2019
    Applicants: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori OMURA, Hirokazu SANADA, Takako YADA, Ayaka ATSUMI, Tetsunari MORITA, Emi ISHIMARU
  • Publication number: 20190177761
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: March 21, 2018
    Publication date: June 13, 2019
    Applicants: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori OMURA, Hirokazu SANADA, Takako YADA, Ayaka ATSUMI, Tetsunari MORITA, Emi ISHIMARU
  • Publication number: 20190062798
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: September 28, 2018
    Publication date: February 28, 2019
    Applicants: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori OMURA, Hirokazu SANADA, Takako YADA, Ayaka ATSUMI, Tetsunari MORITA, Emi ISHIMARU
  • Publication number: 20190048386
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: September 28, 2018
    Publication date: February 14, 2019
    Applicants: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori OMURA, Hirokazu SANADA, Takako YADA, Ayaka ATSUMI, Tetsunari MORITA, Emi ISHIMARU
  • Publication number: 20190048383
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: September 28, 2018
    Publication date: February 14, 2019
    Applicants: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori Omura, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Publication number: 20190048384
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: September 28, 2018
    Publication date: February 14, 2019
    Applicants: Ikeda Food Research Co., Ltd, PHC Corporation
    Inventors: Hironori OMURA, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Publication number: 20190048385
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: September 28, 2018
    Publication date: February 14, 2019
    Applicants: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori OMURA, Hirokazu Sanada, Takako Yada, Ayaka Atsumi, Tetsunari Morita, Emi Ishimaru
  • Publication number: 20190040437
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: March 21, 2018
    Publication date: February 7, 2019
    Applicants: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori OMURA, Hirokazu SANADA, Takako YADA, Ayaka ATSUMI, Tetsunari MORITA, Emi ISHIMARU
  • Publication number: 20190040440
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: September 28, 2018
    Publication date: February 7, 2019
    Inventors: Hironori OMURA, Hirokazu SANADA, Takako YADA, Ayaka ATSUMI, Tetsunari MORITA, Emi ISHIMARU
  • Publication number: 20190040439
    Abstract: The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.
    Type: Application
    Filed: September 27, 2018
    Publication date: February 7, 2019
    Applicants: Ikeda Food Research Co., Ltd., PHC Corporation
    Inventors: Hironori OMURA, Hirokazu SANADA, Takako YADA, Ayaka ATSUMI, Tetsunari MORITA, Emi ISHIMARU