Patents by Inventor Yozo Machida

Yozo Machida 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).

  • Pyranose oxidase, method of making and method of use
    Patent number: 4636464
    Abstract: A novel pyranose oxidase exhibiting the strong specific activity only on glucose is produced by fermentation of a microorganism of the genus Coriolus, Daedaleopsis, Gloeophyllum or Pleurotus. The enzyme is useful for the determination of glucose.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: January 13, 1987
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Toru Nakanishi, Yozo Machida
  • Method and test composition for the determination of the substrate for xanthine oxidase
    Patent number: 4341868
    Abstract: The substrate for xanthine oxidase such as xanthine, hypoxanthine, guanine, 2-hydroxypurine, etc. are determined by oxidizing the substrate by the action of xanthine oxidase derived from a microorganism and determining the formed hydrogen peroxide by the system for the determination of hydrogen peroxide comprising peroxidase and coloring reagent.The determination is carried out in one step by using the test composition for the determination of the substrate for xanthine oxidase which comprises xanthine oxidase and a system for the determination of hydrogen peroxide.The determination method can be applied to the determination of the compound which participates in the system wherein the substrate is stoichiometrically formed by the reaction or decomposition. When the system is an enzymatic reaction, the compound is determined in one step.
    Type: Grant
    Filed: April 18, 1980
    Date of Patent: July 27, 1982
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Toru Nakanishi, Yozo Machida
  • Process for the preparation of choline oxidase by fermentation
    Patent number: 4245050
    Abstract: Choline oxidase is produced by fermentation of a microorganism belonging to the genus Brevibacterium or Corynebacterium and which is capable of producing choline oxidase. Choline oxidase is useful for the determination of choline.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: January 13, 1981
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Toru Nakanishi, Yozo Machida