Patents by Inventor Kazunori Hiruta

Kazunori Hiruta 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 charging with liquefied ammonia, method for producing nitride crystal, and reactor for growth of nitride crystal
    Patent number: 8721788
    Abstract: A method for charging with liquefied ammonia comprising sequentially a feeding step of feeding gaseous ammonia in a condenser, a liquefaction step of converting the gaseous ammonia into a liquefied ammonia in the condenser, and a charging step of feeding the liquefied ammonia formed in the condenser to a vessel to thereby charge the vessel with the liquefied ammonia wherein a cooling step of feeding the liquefied ammonia formed in the condenser to the vessel and cooling the vessel by the latent heat of vaporization of the liquefied ammonia and a circulation step of feeding the gaseous ammonia formed through vaporization of the liquefied ammonia in the previous cooling step to the condenser are carried out between the liquefaction step and the charging step.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: May 13, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yuuichi Katou, Takao Watanabe, Kazunori Hiruta
  • METHOD FOR CHARGING WITH LIQUEFIED AMMONIA, METHOD FOR PRODUCING NITRIDE CRYSTAL, AND REACTOR FOR GROWTH OF NITRIDE CRYSTAL
    Publication number: 20100294195
    Abstract: A method for charging with liquefied ammonia comprising sequentially a feeding step of feeding gaseous ammonia in a condenser, a liquefaction step of converting the gaseous ammonia into a liquefied ammonia in the condenser, and a charging step of feeding the liquefied ammonia formed in the condenser to a vessel to thereby charge the vessel with the liquefied ammonia wherein a cooling step of feeding the liquefied ammonia formed in the condenser to the vessel and cooling the vessel by the latent heat of vaporization of the liquefied ammonia and a circulation step of feeding the gaseous ammonia formed through vaporization of the liquefied ammonia in the previous cooling step to the condenser are carried out between the liquefaction step and the charging step.
    Type: Application
    Filed: September 24, 2008
    Publication date: November 25, 2010
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yuuichi Katou, Takao Watanabe, Kazunori Hiruta