Patents by Inventor Tomoyuki Kuroda

Tomoyuki Kuroda 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).

  • Reagents used in a method of classifying leukocytes by flow cytometry
    Patent number: 5039613
    Abstract: Three methods for classifying leukocytes with a flow cytometer by optical measurements on fluorochrome-stained blood cells or those which have been so treated as to provide varying intensity in forward scattered light are useful in the practice of clinical testing. Also included are reagents employed in the practice of such methods.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: August 13, 1991
    Assignee: Toa Medical Electronics Co., Ltd.
    Inventors: Syouhei Matsuda, Takashi Sakata, Tomoyuki Kuroda
  • Reticulocyte quantitating reagent for flow cytometry
    Patent number: 4985174
    Abstract: Disclosed is a reagent containing auramine O for the fluorescent staining of reticulocytes in a sample of whole blood to permit quantitative determination of the reticulocytes by means of a flow cytometer.
    Type: Grant
    Filed: December 4, 1987
    Date of Patent: January 15, 1991
    Assignee: TOA Medical Electronics Co., Ltd.
    Inventors: Tomoyuki Kuroda, Takahito Fukuhara
  • Reagent for reticulocyte counting by flow cytometry
    Patent number: 4981803
    Abstract: A reagent for reticulocyte counting by flow cytometry which comprises two solutions, namely, a stock solution for staining in which a dye is dissolved in a nonaqueous solvent, and a buffer solution which satisfies the optimum staining conditions.By combining these two solutions immediately before measurement, a stable final staining solution for reticulocyte counting can always be obtained.
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: January 1, 1991
    Assignee: Toa Medical Electronics Co., Ltd.
    Inventor: Tomoyuki Kuroda
  • Reagent for reticulocyte counting by flow cytometry
    Patent number: 4971917
    Abstract: A reagent for reticulocyte counting by flow cytometry characterized in that it contains a carbonate salt.If a blood sample is left exposed to ordinary air, non-specific staining of erythrocyte can be prevented with the addition of not less than about 1 mM of NaHCO.sub.3.
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: November 20, 1990
    Assignee: Toa Medical Electronics Co., Ltd.
    Inventor: Tomoyuki Kuroda
  • Method of classifying leukocytes by flow cytometry and reagents used in the method
    Patent number: 4933293
    Abstract: A method for classifying leukocytes with a flow cytometer by means of optical measurements on fluorochrome-stained blood cells is useful in the practice of clinical testing.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: June 12, 1990
    Assignee: TOA Medical Electronics Co., Ltd.
    Inventors: Tomoyuki Kuroda, Takashi Sakata