Patents by Inventor Tsunero Oda

Tsunero Oda 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).

  • Novel Aureobasidium sp. microorganisms and method for obtaining the same, and method for preparing erythritol with the same
    Patent number: 5036011
    Abstract: Biologically pure culture of Aureobasidium sp. SN-124A strain (FERM BP-1429) and artificial mutants thereof according to the present invention show the properties of forming and accumulating erythritol in a culture solution, when aerobically cultured on a liquid culture medium containing an assimilable carbon source and an assimilable nitrogen source, and are useful for the preparation of erythritol by fermentation of sugars. A method for preparing erythritol by fermentation of sugars according to the present invention comprises inoculating microorganism selected from the group consisting of Aureobasidium sp. SN-124A strain (FERM BP-1429) and mutants thereof on a liquid culture medium of pH 4 to 9 containing an assimilable carbon source and an assimilable nitrogen source, and aerobically culturing them at a temperature of 30.degree. to 38.degree. C. to form and accumulate erythritol in said culture medium for collection.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: July 30, 1991
    Assignees: Director of National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries, Nikken Chemicals Co., Ltd.
    Inventors: Takashi Sasaki, Takafumi Kasumi, Naoya Kubo, Keiji Kainuma, Katsuo Wako, Hiroaki Ishizuka, Gaku Kawaguchi, Tsunero Oda
  • Novel auerobasidium sp. microorganisms, method for obtaining the same and method for preparing erythritol with the same
    Patent number: 4939091
    Abstract: Biologically pure culture of Aureobasidium sp. SN-124A strain (FERM BP-1429) and artificial mutants thereof according to the present invention show the properties of forming and accumulating erythritol in a culture solution, when aerobically cultured on a liquid culture medium containing an assimilable carbon source and an assimilable nitrogen source, and are useful for the preparation of erythritol by fermentation of sugars. A method for preparing erythritol by fermentation of sugars according to the present invention comprises inoculating microorganism selected from the group consisting of Aureobasidium sp. SN-124A strain (FERM BP-1429) and mutants thereof on a liquid culture medium of pH 4 to 9 containing an assimilable carbon source and an assimilable nitrogen source, and aerobically culturing them at a temperature of 30.degree. to 38.degree. C. to form and accumulate erythritol in said culture medium for collection.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: July 3, 1990
    Assignees: Director of National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries, Nikken Chemicals Co., Ltd.
    Inventors: Takashi Sasaki, Takafumi Kasumi, Naoya Kubo, Keiji Kainuma, Katsuo Wako, Hiroaki Ishizuka, Gaku Kawaguchi, Tsunero Oda