Patents by Inventor Yasuhiro Sadanaga

Yasuhiro Sadanaga 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).

  • Method for producing fatty acid alkyl ester and production system therefor
    Patent number: 8940921
    Abstract: [Problem] There are provided a method for production of a fatty acid alkyl ester and a system therefor, in which a high yield of the fatty acid alkyl ester is achieved even without using any special equipment and separation of a fatty acid alkyl ester phase from a glycerin phase can be carried out within an extremely short period of time. [Means to solve] The method for producing a fatty acid alkyl ester of the present invention comprises subjecting a starting oil to an ester exchange reaction with a lower alkyl alcohol in the presence of a catalyst to generate the fatty acid alkyl ester, wherein the ester exchange reaction step is carried out in a homogeneous phase system by adding an organic solvent selected from acetone, isopropanol and a mixture thereof to a reaction system.
    Type: Grant
    Filed: March 14, 2010
    Date of Patent: January 27, 2015
    Assignee: Osaka Prefecture University Public Corporation
    Inventors: Yasuaki Maeda, Hiroshi Bandow, Norimichi Takenaka, Yasuhiro Sadanaga, Kenji Okitsu
  • METHOD FOR PRODUCING FATTY ACID ALKYL ESTER AND PRODUCTION SYSTEM THEREFOR
    Publication number: 20110319651
    Abstract: [Problem] There are provided a method for production of a fatty acid alkyl ester and a system therefor, in which a high yield of the fatty acid alkyl ester is achieved even without using any special equipment and separation of a fatty acid alkyl ester phase from a glycerin phase can be carried out within an extremely short period of time. [Means to solve] The method for producing a fatty acid alkyl ester of the present invention comprises subjecting a starting oil to an ester exchange reaction with a lower alkyl alcohol in the presence of a catalyst to generate the fatty acid alkyl ester, wherein the ester exchange reaction step is carried out in a homogeneous phase system by adding an organic solvent selected from acetone, isopropanol and a mixture thereof to a reaction system.
    Type: Application
    Filed: March 14, 2010
    Publication date: December 29, 2011
    Applicant: Osaka Prefecture University Public Corporation
    Inventors: Yasuaki Maeda, Hiroshi Bandow, Norimichi Takenaka, Yasuhiro Sadanaga, Kenji Okitsu