Patents by Inventor Yoshiro Yasaka

Yoshiro Yasaka 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 formic acid
    Patent number: 8519013
    Abstract: An object of the present invention is providing a method for producing formic acid under mild reaction conditions and by a simple procedure. As a means for achieving the object, the method for producing formic acid of the present invention is characterized by a reaction between carbon dioxide and hydrogen in the presence of an ionic liquid. According to the present invention, it is possible to generate formic acid effectively, because the method does not require that carbon dioxide be brought into a supercritical state and because no basic substances are required to be added to the reaction system.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: August 27, 2013
    Inventors: Masaru Nakahara, Nobuyuki Matsubayashi, Yoshiro Yasaka
  • Method for producing hydrogen
    Patent number: 8449862
    Abstract: An object of the present invention is to provide a method for producing hydrogen by using formic acid as a feedstock, which provides a solution to problems to be solved for the production of hydrogen on an industrial scale, such as problems of production cost, storability and transportability, and also offers improved convenience. The method for producing hydrogen of the present invention is characterized by heating an ionic liquid containing formic acid. The ionic liquid is preferably an ionic liquid in which a counteranion is a formate anion (i.e., formic acid salt). Such an ionic liquid is, as a medium for the production of hydrogen from formic acid as a feedstock, excellent in terms of reaction selectivity (high-purity hydrogen is produced) and reaction velocity.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: May 28, 2013
    Assignee: Masaru Nakahara
    Inventors: Masaru Nakahara, Nobuyuki Matsubayashi, Yoshiro Yasaka
  • METHOD FOR PRODUCING FORMIC ACID
    Publication number: 20120295991
    Abstract: An object of the present invention is providing a method for producing formic acid under mild reaction conditions and by a simple procedure. As a means for achieving the object, the method for producing formic acid of the present invention is characterized by a reaction between carbon dioxide and hydrogen in the presence of an ionic liquid. According to the present invention, it is possible to generate formic acid effectively, because the method does not require that carbon dioxide be brought into a supercritical state and because no basic substances are required to be added to the reaction system.
    Type: Application
    Filed: January 24, 2011
    Publication date: November 22, 2012
    Inventors: Masaru Nakahara, Nobuyuki Matsubayashi, Yoshiro Yasaka
  • METHOD FOR PRODUCING HYDROGEN
    Publication number: 20110158899
    Abstract: An object of the present invention is to provide a method for producing hydrogen by using formic acid as a feedstock, which provides a solution to problems to be solved for the production of hydrogen on an industrial scale, such as problems of production cost, storability and transportability, and also offers improved convenience. The method for producing hydrogen of the present invention is characterized by heating an ionic liquid containing formic acid. The ionic liquid is preferably an ionic liquid in which a counteranion is a formate anion (i.e., formic acid salt). Such an ionic liquid is, as a medium for the production of hydrogen from formic acid as a feedstock, excellent in terms of reaction selectivity (high-purity hydrogen is produced) and reaction velocity.
    Type: Application
    Filed: July 28, 2009
    Publication date: June 30, 2011
    Inventors: Masaru Nakahara, Nobuyuki Matsubayashi, Yoshiro Yasaka