Patents by Inventor Yojiro Ikegawa

Yojiro Ikegawa 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 production, substitution, or mining of gas hydrate
    Patent number: 8783364
    Abstract: A gas hydrate is produced by injecting guest molecules into voids in a layer of which temperature and pressure condition allows the guest molecules to cause to form hydrate, in a form of emulsion where liquid of the guest molecules is dispersed in water as minute particles having a size of less than a size of voids, and thereby dispersing the guest molecules uniformly into the voids in the layer.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: July 22, 2014
    Assignee: Central Research Institute of Electric Power Industry
    Inventor: Yojiro Ikegawa
  • METHOD FOR PRODUCTION, SUBSTITUTION, OR MINING OF GAS HYDRATE
    Publication number: 20100193180
    Abstract: A gas hydrate is produced by injecting guest molecules into voids in a layer of which temperature and pressure condition allows the guest molecules to cause to form hydrate, in a form of emulsion where liquid of the guest molecules is dispersed in water as minute particles having a size of less than a size of voids, and thereby dispersing the guest molecules uniformly into the voids in the layer.
    Type: Application
    Filed: August 25, 2006
    Publication date: August 5, 2010
    Inventor: Yojiro Ikegawa
  • METHOD FOR PRODUCTION, SUBSTITUTION, OR MINING OF GAS HYDRATE
    Publication number: 20090032248
    Abstract: A gas hydrate is produced by injecting guest molecules into voids in a layer of which temperature and pressure condition allows the guest molecules to cause to form hydrate, in a form of emulsion where liquid of the guest molecules is dispersed in water as minute particles having a size of less than a size of voids, and thereby dispersing the guest molecules uniformly into the voids in the layer.
    Type: Application
    Filed: August 25, 2006
    Publication date: February 5, 2009
    Inventors: Michal Svoboda, Xenia Svobodova, Yojiro Ikegawa