Patents by Inventor Yutaka Ishiwatari

Yutaka Ishiwatari 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).

  • Sweet taste receptor chimeric proteins and use thereof
    Patent number: 9341616
    Abstract: A sweet taste substance or a sweet taste-regulating substance is detected by contacting a test substance with a cell that expresses a chimeric protein of human T1R2 and mouse T1R2, and/or a chimeric protein of human T1R3 and mouse T1R3, and may further express a G protein ? subunit, and by detecting an interaction between the chimeric proteins and the test substance.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: May 17, 2016
    Assignee: AJINOMOTO CO., INC.
    Inventors: Seiji Kitajima, Yutaka Ishiwatari
  • Method for screening a salty taste modulating substance
    Patent number: 9222944
    Abstract: By contacting a test substance with a cell that expresses a Kv3.2 protein, and comparing observed cation influx into the cell with cation influx into the cell observed when the test substance is not contacted with the cell, a salty taste modulating substance such as salt alternative compound, or salt perception enhancing or inhibiting compound is screened.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: December 29, 2015
    Assignee: AJINOMOTO CO., INC.
    Inventors: Yutaka Ishiwatari, Yuko Kai, Takami Maekawa, Yuzuru Eto
  • Sweet Taste Receptor Chimeric Proteins and Use Thereof
    Publication number: 20150276710
    Abstract: A sweet taste substance or a sweet taste-regulating substance is detected by contacting a test substance with a cell that expresses a chimeric protein of human T1R2 and mouse T1R2, and/or a chimeric protein of human T1R3 and mouse T1R3, and may further express a G protein ? subunit, and by detecting an interaction between the chimeric proteins and the test substance.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Applicant: AJINOMOTO CO., INC.
    Inventors: Seiji Kitajima, Yutaka Ishiwatari
  • SALTY TASTE ENHANCER
    Publication number: 20140004243
    Abstract: The present invention provides a compound having a salty taste enhance activity, and a salty taste enhancer containing the compound, and the like. The present invention relates to a salty taste enhancer for a food or drink, which contains a compound represented by the following formula: wherein each symbol is as defined in the specification, or an edible salt thereof.
    Type: Application
    Filed: September 6, 2013
    Publication date: January 2, 2014
    Applicant: AJINOMOTO CO., INC.
    Inventors: Yuki TAHARA, Yusuke Amino, Takami Maekawa, Yuzuru Eto, Takashi Miyaki, Wakana Saikawa, Yuko Kai, Yutaka Ishiwatari
  • METHOD FOR SCREENING A SALTY TASTE MODULATING SUBSTANCE
    Publication number: 20120028263
    Abstract: By contacting a test substance with a cell that expresses a Kv3.2 protein, and comparing observed cation influx into the cell with cation influx into the cell observed when the test substance is not contacted with the cell, a salty taste modulating substance such as salt alternative compound, or salt perception enhancing or inhibiting compound is screened.
    Type: Application
    Filed: July 26, 2011
    Publication date: February 2, 2012
    Applicant: AJINOMOTO CO., INC.
    Inventors: Yutaka Ishiwatari, Yuko Kai, Takami Maekawa, Yuzuru Eto
  • STG Promoter And Its Use As A Marker For Taste And Oocyte Cells
    Publication number: 20100319075
    Abstract: The present invention relates to a polynucleotide vector comprising the Simian taste-bud specific gene (STG) promoter operatively linked to a reporter gene. In preferred embodiments, the STG promoter is the murine ortholog of the STG promoter. In other preferred embodiments, the STG promoter is the human ortholog of the STG promoter. In some preferred embodiments, the reporter gene is green fluorescent protein (GFP). Additionally provided are vectors comprising the STG promoter operatively linked to a cre-recombinase gene.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 16, 2010
    Applicant: MONELL CHEMICAL SENSES CENTER
    Inventors: Alexander Alexeyevich Bachmanov, Nataliya Petrovna Bosak, Yutaka Ishiwatari