Patents by Inventor Katsuhisa SHIMADA

Katsuhisa SHIMADA 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).

  • Analyzing method and analyzing apparatus for urea
    Patent number: 11860075
    Abstract: The analyzing method for quantifying urea in a sample solution includes: a pretreatment step of pretreating the sample solution with at least one of a membrane device including a reverse osmosis membrane and an ion exchange device including an ion exchanger; and an analyzing step of analyzing a target substance in the pretreated sample solution. The analyzing step is based on, for example, flow injection analysis (FIA), and includes a step of quantifying the target substance by measuring the absorbance of a liquid containing a substance generated by reacting the target substance with a reagent.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 2, 2024
    Assignee: ORGANO CORPORATION
    Inventors: Kazushige Takahashi, Hiroshi Sugawara, Fumio Sudo, Katsuhisa Shimada
  • ANALYZING METHOD AND ANALYZING APPARATUS FOR UREA
    Publication number: 20200355586
    Abstract: The analyzing method for quantifying urea in a sample solution includes: a pretreatment step of pretreating the sample solution with at least one of a membrane device including a reverse osmosis membrane and an ion exchange device including an ion exchanger; and an analyzing step of analyzing a target substance in the pretreated sample solution. The analyzing step is based on, for example, flow injection analysis (FIA), and includes a step of quantifying the target substance by measuring the absorbance of a liquid containing a substance generated by reacting the target substance with a reagent.
    Type: Application
    Filed: October 30, 2018
    Publication date: November 12, 2020
    Applicant: ORGANO CORPORATION
    Inventors: Kazushige TAKAHASHI, Hiroshi SUGAWARA, Fumio SUDO, Katsuhisa SHIMADA