Patents by Inventor Mayumi Kiwaki

Mayumi Kiwaki 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).

  • Method of quantitatively analyzing microorganism targeting rRNA
    Patent number: 10174386
    Abstract: An object of the present invention is to provide a method of quantitating or detecting a microorganism, capable of detecting a live microorganism at high sensitivity and more precisely. A method of quantitating a microorganism of interest, using as an index the amount of rRNA of the microorganism of interest is provided.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: January 8, 2019
    Assignee: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Hirokazu Tsuji, Kazunori Matsuda, Takashi Asahara, Koji Nomoto, Mayumi Kiwaki
  • Method for regulating acid resistance of microbes
    Patent number: 9957496
    Abstract: Provided are a method for regulating acid resistance of a microorganism by suppressing the expression of the fadD gene therein and a screening method for a microorganism having acid resistance by using the expression level of the fadD gene as an index. A method for regulating acid resistance of a microorganism, including suppressing the expression of fadD gene present in the microorganism.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: May 1, 2018
    Assignee: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Hoshitaka Matsumoto, Mika Miura, Mayumi Kiwaki, Tohru Iino
  • METHOD FOR REGULATING ACID RESISTANCE OF MICROBES
    Publication number: 20170022491
    Abstract: Provided are a method for regulating acid resistance of a microorganism by suppressing the expression of the fadD gene therein and a screening method for a microorganism having acid resistance by using the expression level of the fadD gene as an index. A method for regulating acid resistance of a microorganism, including suppressing the expression of fadD gene present in the microorganism.
    Type: Application
    Filed: December 3, 2014
    Publication date: January 26, 2017
    Applicant: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Hoshitaka MATSUMOTO, Mika MIURA, Mayumi KIWAKI, Tohru IINO
  • Hydrogen peroxide resistance-imparting gene and method for using same
    Patent number: 9139837
    Abstract: Provided is a gene that is useful for imparting hydrogen peroxide resistance to a microorganism. Also provided is a method for using the same. The hydrogen peroxide resistance-imparting gene encoding a protein selected from the following proteins (a) to (c): (a) a protein having the amino acid sequence of SEQ ID NO: 2; (b) a protein which has an amino acid sequence equivalent to the amino acid sequence of (a), except that one to several amino acid residues are deleted, substituted, or added, and which exhibits hydrogen peroxide resistance-imparting activity; and (c) a protein which has an amino acid sequence having an identity of 85% or higher to the amino acid sequence of (a), and which exhibits hydrogen peroxide resistance-imparting activity.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: September 22, 2015
    Assignee: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Masaki Serata, Mayumi Kiwaki, Tohru Iino
  • HYDROGEN PEROXIDE RESISTANCE-IMPARTING GENE AND METHOD FOR USING SAME
    Publication number: 20140141437
    Abstract: Provided is a gene that is useful for imparting hydrogen peroxide resistance to a microorganism. Also provided is a method for using the same. The hydrogen peroxide resistance-imparting gene encoding a protein selected from the following proteins (a) to (c): (a) a protein having the amino acid sequence of SEQ ID NO: 2; (b) a protein which has an amino acid sequence equivalent to the amino acid sequence of (a), except that one to several amino acid residues are deleted, substituted, or added, and which exhibits hydrogen peroxide resistance-imparting activity; and (c) a protein which has an amino acid sequence having an identity of 85% or higher to the amino acid sequence of (a), and which exhibits hydrogen peroxide resistance-imparting activity.
    Type: Application
    Filed: March 2, 2012
    Publication date: May 22, 2014
    Applicant: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Masaki Serata, Mayumi Kiwaki, Tohru Iino
  • METHOD OF QUANTITATIVELY ANALYSING MICROORGANISM TARGETING RRNA
    Publication number: 20090170078
    Abstract: An object of the present invention is to provide a method of quantitating or detecting a microorganism, capable of detecting a live microorganism at high sensitivity and more precisely. A method of quantitating a microorganism of interest, using as an index the amount of rRNA of the microorganism of interest is provided.
    Type: Application
    Filed: January 30, 2006
    Publication date: July 2, 2009
    Applicant: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Hirokazu Tsuji, Kazunori Matsuda, Takashi Asahara, Koji Nomoto, Mayumi Kiwaki
  • Methods for transferring gene into chromosome
    Patent number: 6319692
    Abstract: Methods for transferring a foreign gene into a host chromosome by integrating the foreign gene into a vector by utilizing a lysogenic phage, for the purpose of deleting unnecessary genes derived from the vector, except for the foreign gene.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: November 20, 2001
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Mariko Kadota, Mayumi Kiwaki, Saeko Sawaki, Yukio Shirasawa, Harue Sone, Tomoyuki Sako