Patents by Inventor Kazuhiro Omiya

Kazuhiro Omiya 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 suppressing background rise in color reagent solution, color reagent solution, reagent kit, and measuring apparatus
    Patent number: 10145765
    Abstract: A method is provided for suppressing, in a color reagent solution which is used to measure a component within a sample and which contains an oxidative color reagent dissolved therein, a background rise that occurs when the color reagent solution is stored. The method includes adjusting a hydrogen ion exponent (pH) of the color reagent solution so as to be strongly acidic. The hydrogen ion exponent is preferably adjusted to 2.9 or below or to 2.1 or below. The color reagent solution is preferably used to measure the degree of oxidative stress. The oxidative color reagent is preferably a phenylenediamine derivative.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: December 4, 2018
    Assignee: ARKRAY, Inc.
    Inventors: Kazuhiro Omiya, Toshihiro Imai
  • Method of suppressing background rise in color reagent solution, color reagent solution, reagent kit, and measuring apparatus
    Patent number: 10113942
    Abstract: A method is provided for suppressing, in a color reagent solution which is used to measure a component within a sample and which contains an oxidative color reagent dissolved therein, a background rise that occurs when the color reagent solution is stored. The method includes adjusting a hydrogen ion exponent (pH) of the color reagent solution so as to be strongly acidic. The hydrogen ion exponent is preferably adjusted to 2.9 or below or to 2.1 or below. The color reagent solution is preferably used to measure the degree of oxidative stress. The oxidative color reagent is preferably a phenylenediamine derivative.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: October 30, 2018
    Assignee: ARKRAY, Inc.
    Inventors: Kazuhiro Omiya, Toshihiro Imai
  • Method of Suppressing Background Rise in Color Reagent Solution, Color Reagent Solution, Reagent Kit, and Measuring Apparatus
    Publication number: 20150276561
    Abstract: A method is provided for suppressing, in a color reagent solution which is used to measure a component within a sample and which contains an oxidative color reagent dissolved therein, a background rise that occurs when the color reagent solution is stored. The method includes adjusting a hydrogen ion exponent (pH) of the color reagent solution so as to be strongly acidic. The hydrogen ion exponent is preferably adjusted to 2.9 or below or to 2.1 or below. The color reagent solution is preferably used to measure the degree of oxidative stress. The oxidative color reagent is preferably a phenylenediamine derivative.
    Type: Application
    Filed: March 23, 2015
    Publication date: October 1, 2015
    Applicant: ARKRAY, Inc.
    Inventors: Kazuhiro Omiya, Toshihiro Imai
  • Reagent for measuring degree of oxidative stress and method of measuring degree of oxidative stress
    Patent number: 9126895
    Abstract: The present invention provides a reagent for measuring a degree of oxidative stress that includes a compound represented by the following general formula (I) or a salt thereof, and a method of measuring a degree of oxidative stress using the reagent for measuring a degree of oxidative stress. In the general formula (I), R1, R2, R3 and R4 each independently represent a hydrogen atom, an ethyl group, an isopropyl group, a hydroxyalkyl group that has 1 to 4 carbon atoms, or a phenyl group, and at least one of R1, R2, R3 or R4 represents an isopropyl group, a hydroxyalkyl group having 1 to 4 carbon atoms, or a phenyl group.
    Type: Grant
    Filed: December 22, 2013
    Date of Patent: September 8, 2015
    Assignee: ARKRAY, Inc.
    Inventors: Kazuhiro Omiya, Toshihiro Imai, Emi Ashibe
  • Reagent for Measuring Degree of Oxidative Stress and Method of Measuring Degree of Oxidative Stress
    Publication number: 20140179016
    Abstract: The present invention provides a reagent for measuring a degree of oxidative stress that includes a compound represented by the following general formula (I) or a salt thereof, and a method of measuring a degree of oxidative stress using the reagent for measuring a degree of oxidative stress. In the general formula (I), R1, R2, R3 and R4 each independently represent a hydrogen atom, an ethyl group, an isopropyl group, a hydroxyalkyl group that has 1 to 4 carbon atoms, or a phenyl group, and at least one of R1, R2, R3 or R4 represents an isopropyl group, a hydroxyalkyl group having 1 to 4 carbon atoms, or a phenyl group.
    Type: Application
    Filed: December 22, 2013
    Publication date: June 26, 2014
    Applicant: ARKRAY, INC.
    Inventors: Kazuhiro Omiya, Toshihiro Imai, Emi Ashibe