Patents by Inventor Masao Ohguchi

Masao Ohguchi 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).

  • Processes for producing inulin
    Patent number: 7507558
    Abstract: The present invention provides a method of producing inulin by bringing inulin synthase into contact with sucrose, wherein: (1) the average polymerization degree of inulin is regulated by controlling the sucrose concentration; (2) the average polymerization degree of inulin is regulated by controlling the temperature upon the above contact; and/or (3) at a stage when the above sucrose is consumed by the above inulin synthase and the reaction reaches an equilibrium state, sucrose is additionally added, and the reaction for generating inulin is further continued. Furthermore, the present invention relates to inulin having a predetermined average polymerization degree, which is obtained by the production method.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: March 24, 2009
    Assignee: Fuji Nihon Seito Corporation
    Inventors: Tadashi Wada, Masao Ohguchi
  • Inulin synthase and process for producing inulin by using the same
    Patent number: 7214521
    Abstract: The present invention relates to a novel inulin synthase having a function and a substrate specificity of acting on sucrose to produce inulin, but not acting on kestose, maltose, lactose, trehalose and cellobiose; and a process for producing inulin comprising the step of allowing the synthase, a culture fluid or cultured cells of a microorganism producing the synthase, or a treated product thereof to contact with sucrose to produce inulin.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: May 8, 2007
    Assignee: Fuji Nihon Seito Corporation
    Inventors: Tadashi Wada, Masao Ohguchi
  • Processes for producing inulin
    Publication number: 20040241810
    Abstract: The present invention provides a method of producing inulin by bringing inulin synthase into contact with sucrose, wherein: (1) the average polymerization degree of inulin is regulated by controlling the sucrose concentration; (2) the average polymerization degree of inulin is regulated by controlling the temperature upon the above contact; and/or (3) at a stage when the above sucrose is consumed by the above inulin synthase and the reaction reaches an equilibrium state, sucrose is additionally added, and the reaction for generating inulin is further continued. Furthermore, the present invention relates to inulin having a predetermined average polymerization degree, which is obtained by the production method.
    Type: Application
    Filed: March 25, 2004
    Publication date: December 2, 2004
    Inventors: Tadashi Wada, Masao Ohguchi
  • Novel insulin synthase and process for producing inulin by using the same
    Publication number: 20030190711
    Abstract: The present invention relates to a novel inulin synthase having a function and a substrate specificity of acting on sucrose to produce inulin, but not acting on kestose, maltose, lactose, trehalose and cellobiose; and a process for producing inulin comprising the step of allowing the synthase, a culture fluid or cultured cells of a microorganism producing the synthase, or a treated product thereof to contact with sucrose to produce inulin.
    Type: Application
    Filed: December 30, 2002
    Publication date: October 9, 2003
    Inventors: Tadashi Wada, Masao Ohguchi