Patents by Inventor Kumpei Kitamura

Kumpei Kitamura 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 production of cellulase
    Patent number: 4496656
    Abstract: A novel bacterium, Cellulomonas uda CB4, and production of cellulase by cultivation of the bacterium on a medium containing a cellulosic material are disclosed.
    Type: Grant
    Filed: November 4, 1982
    Date of Patent: January 29, 1985
    Assignee: Kirin Beer Kabushiki Kaisha
    Inventors: Katsumi Nakamura, Kumpei Kitamura
  • Physiologically active polysaccharides, production and uses thereof
    Patent number: 4313934
    Abstract: A physiologically active polysaccharide is prepared by treating autolysis-insoluble matters of yeasts of Saccharomyces with a yeast cell wall-lytic enzyme and obtaining a water-soluble physiologically active substance in the resulting solution-fraction. The novel polysaccharide possesses specific physical and chemical properties, and provides a chemotherapeutic agent such as a carcinostatic agent which can be used in the treatment of implanted tumors in mice and rats and an interferon inducer.
    Type: Grant
    Filed: April 17, 1980
    Date of Patent: February 2, 1982
    Assignee: Kirin Beer Kabushiki Kaisha
    Inventors: Kumpei Kitamura, Shigeru Matsuki, Kozo Tanabe
  • Process for preparation of prodigiosin
    Patent number: 4266028
    Abstract: Prodigiosin, an antibiotic, is effectively produced by culturing a novel Serratia marcescens R-2 strain. A synthetic culture medium is also provided, which contains a higher fatty acid having 12 to 18 carbon atoms, a salt thereof or an ester thereof as the sole or main source of carbon and in which a strain of Serratia marcescens having the abilities to assimilate the source of carbon and to produce prodigiosin can be cultivated to obtain prodigiosin.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: May 5, 1981
    Assignee: Kirin Beer Kabushiki Kaisha
    Inventors: Katsumi Nakamura, Kumpei Kitamura