Patents by Inventor Masuo Umino

Masuo Umino 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).

  • Process for measuring stable-type glycated hemoglobin in a sample
    Patent number: 5004546
    Abstract: A process for measuring the amount of stable-type glycated hemoglobin in a sample using high performance liquid chromatography, comprising heating a sample diluted with a hemolysis agent containing a reagent for the removal of unstable-type glycated hemoglobin to achieve the removal of the unstable-type glycated hemoglobin, and analyzing the sample by high performance liquid chromatography.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: April 2, 1991
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Hiroaki Takahashi, Haruo Okada, Katsuya Matsumoto, Masuo Umino
  • Process for measuring stable-type glycated hemoglobin in a sample
    Patent number: 4879039
    Abstract: A process for measuring the amount of stable-type glycated hemoglobin in a sample using high performance liquid chromatography, comprising heating a sample diluted with a hemolysis agent containing a reagent for the removal of unstable-type glycated hemoglobin to achieve the removal of the unstable-type glycated hemoglobin, and analyzing the sample by high performance liquid chromatography.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: November 7, 1989
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Hiroaki Takahashi, Haruo Okada, Katsuya Matsumoto, Masuo Umino
  • Method for chromatographical analysis of anions
    Patent number: 4808540
    Abstract: Anions in an aqueous solution can be quantitatively measured at a high sensitivity while controlling the electroconductivity possessed by an eluant to a low level, by the chromatographical analyzing method wherein a separating column, a cation exchange column and an electroconductivity detector are connected in the recited order, an aqueous solution containing an amine compound as an electron donor is used as an eluant, and a cation exchange column composed of the cation exchange resin substituted with a metal ion as an electron acceptor is used as the cation exchange column.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: February 28, 1989
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Akiyoshi Miyanaga, Masuo Umino