Patents by Inventor Soichi TANABE

Soichi TANABE 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 for determining origin of amino acid
    Patent number: 11474088
    Abstract: The present invention relates to a method for determining the origin of glutamic acid in a sample and, in a broader sense, relates to a method for determining the origin of an amino acid. The present invention makes it possible to measure the stable isotope ratio, with a considerably higher accuracy than that of conventional methods, by measuring the ?13C of glutamic acid (amino acid) by elemental analysis-stable isotope ratio mass spectrometry (EA-IRMS) and measuring the ?15N by gas chromatography-stable isotope ratio mass spectrometry (GC-IRMS). In addition, the present invention makes it possible to determine the origin of glutamic acid (amino acid) by comparing the stable isotope ratio of the glutamic acid (amino acid) whose origin is unclear with the stable isotope ratio of glutamic acid (amino acid) whose origin is clear.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 18, 2022
    Assignee: NISSIN FOODS HOLDINGS CO., LTD.
    Inventors: Masaharu Tanaka, Yoichi Yatsukawa, Kazuhiro Kobayashi, Soichi Tanabe, Mitsuru Tanaka
  • METHOD FOR DETERMINING ORIGIN OF AMINO ACID
    Publication number: 20190360983
    Abstract: The present invention relates to a method for determining the origin of glutamic acid in a sample and, in a broader sense, relates to a method for determining the origin of an amino acid. The present invention makes it possible to measure the stable isotope ratio, with a considerably higher accuracy than that of conventional methods, by measuring the ?13C of glutamic acid (amino acid) by elemental analysis-stable isotope ratio mass spectrometry (EA-IRMS) and measuring the ?15N by gas chromatography-stable isotope ratio mass spectrometry (GC-IRMS). In addition, the present invention makes it possible to determine the origin of glutamic acid (amino acid) by comparing the stable isotope ratio of the glutamic acid (amino acid) whose origin is unclear with the stable isotope ratio of glutamic acid (amino acid) whose origin is clear.
    Type: Application
    Filed: January 31, 2018
    Publication date: November 28, 2019
    Inventors: Masaharu TANAKA, Yoichi YATSUKAWA, Kazuhiro KOBAYASHI, Soichi TANABE, Mitsuru TANAKA