Patents by Inventor Nobuko Imajo

Nobuko Imajo 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).

  • Polypeptide and process for measuring living body components using the same
    Patent number: 6828417
    Abstract: A living body component in a sample derived from a living body can be rapidly and accurately measured by reacting the sample with a reagent comprising a combined product of an affinity substance and a polypeptide having at least three acid residues derived from a strong acid, separating the resulting complex by a method applying negative change such as using an anion-exchanger, and determining the amount of the analyte to be measured, on the basis of the amount of the complex or free combined product.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: December 7, 2004
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Nobuko Imajo, Yukari Yamagata, Hideo Katoh, Shinji Satomura, Kenji Nakamura
  • Polypeptide and process for measuring living body components using the same
    Publication number: 20020045189
    Abstract: A living body component in a sample derived from a living body can be rapidly and accurately measured by reacting the sample with a reagent comprising a combined product of an affinity substance and a polypeptide having at least three acid residues derived from a strong acid, separating the resulting complex by a method applying negative change such as using an anion-exchanger, and determining the amount of the analyte to be measured, on the basis of the amount of the complex or free combined product.
    Type: Application
    Filed: June 19, 2001
    Publication date: April 18, 2002
    Applicant: Wako Pure Chemical Industries, LTD.
    Inventors: Nobuko Imajo, Yukari Yamagata, Hideo Katoh, Shinji Satomura, Kenji Nakamura
  • Polypeptide and process for measuring living body components using the same
    Patent number: 6300079
    Abstract: A living body component in a sample derived from a living body can be rapidly and accurately measured by reacting the sample with a reagent comprising a combined product of an affinity substance and a polypeptide having at least three acid residues derived from a strong acid, separating the resulting complex by a method applying negative change such as using an anion-exchanger, and determining the amount of the analyte to be measured, on the basis of the amount of the complex or free combined product.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: October 9, 2001
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Nobuko Imajo, Yukari Yamagata, Hideo Katoh, Shinji Satomura, Kenji Nakamura
  • Method for measuring LDL-cholesterol
    Patent number: 5925534
    Abstract: The amount of cholesterol in low density lipoproteins in a sample can be measured by contacting the sample with one or more reagent solutions to carry out the reaction in the presence of a polyanion and an amphoteric surfactant, followed by optical measurement of the reaction product.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: July 20, 1999
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Yutaka Miki, Isao Koyama, Nobuko Imajo, Masayuki Futatsugi, Toshiro Hanada
  • Method for measuring an amount of LDL-Cholesterol
    Patent number: 5885788
    Abstract: The present invention is to provide a method for measuring an amount of cholesterol in low density lipoproteins (LDL-cholesterol) in a sample specifically at high accuracy and a reagent used in this method, and the present invention can attain such effect that direct measuring an amount of LDL-cholesterol by widely used automatic analyzers can be conducted by using the invention, which has not been possible after known methods.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: March 23, 1999
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Yutaka Miki, Nobuko Imajo, Toshiro Hanada
  • Measurement of LDL-cholesterol
    Patent number: 5814472
    Abstract: Cholesterol in low density lipoproteins can be measured specifically and precisely by optically measuring a reaction product of a living sample with cholesterol oxidase or cholesterol dehydrogenase in the presence of an amphoteric surfactant. In addition to the above processes for measurement, the present invention provides reagent compositions and kits for measuring cholesterol in low density lipoprotein.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: September 29, 1998
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Yutaka Miki, Nobuko Imajo, Isao Koyama, Toshiro Hanada