Patents by Inventor Tsubasa HATANAKA

Tsubasa HATANAKA 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).

  • Garnet single crystal, optical isolator and optical processor
    Patent number: 9030739
    Abstract: The present invention provides a garnet single crystal comprising a terbium aluminum garnet single crystal, wherein a portion of the aluminum is substituted with scandium, and a portion of at least one of the aluminum and terbium is substituted with at least one type selected from the group consisting of thulium, ytterbium and yttrium.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: May 12, 2015
    Assignees: Fujikura Ltd., National Institute for Materials Science
    Inventors: Tsubasa Hatanaka, Akiharu Funaki, Kiyoshi Shimamura, Villora Encarnacion Antonia Garcia
  • Garnet-type single crystal, optical isolator and laser processing machine
    Patent number: 8804240
    Abstract: The present invention is a garnet-type single crystal represented by the following general formula: (Tb3-xScx)(Sc2-yAly)Al3O12-z??(1) (wherein, x satisfies 0<x<0.1).
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: August 12, 2014
    Assignees: Fujikura Ltd., National Institute for Materials Science
    Inventors: Akiharu Funaki, Tsubasa Hatanaka, Kiyoshi Shimamura, Villora Encarnacion Antonia Garcia
  • GARNET SINGLE CRYSTAL, OPTICAL ISOLATOR AND OPTICAL PROCESSOR
    Publication number: 20130038927
    Abstract: The present invention provides a garnet single crystal comprising a terbium aluminum garnet single crystal, wherein a portion of the aluminum is substituted with scandium, and a portion of at least one of the aluminum and terbium is substituted with at least one type selected from the group consisting of thulium, ytterbium and yttrium.
    Type: Application
    Filed: October 18, 2012
    Publication date: February 14, 2013
    Inventors: Tsubasa HATANAKA, Akiharu FUNAKI, Kiyoshi SHIMAMURA, Villora Encarnacion Antonia GARCIA