Patents by Inventor Noriya Tokunaga

Noriya Tokunaga 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).

  • Device for producing gas hydrate
    Patent number: 9533277
    Abstract: To enable long-term continuous operation by preventing blocking of a reaction pipe line disposed in a multi-pipe or double-walled-pipe heat exchanger, provided is a device for producing gas hydrate including a multi-pipe or double-walled-pipe device 1 for generating gas hydrate having a reaction pipe line 2 for flowing raw material water w and raw material gas g and a coolant circulation region 3 for circulating a coolant c and thereby cooling the reaction pipe line 2, wherein a coil spring 4 extending in the longitudinal direction of the reaction pipe line 2 is provided in the reaction pipe line 2.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: January 3, 2017
    Assignee: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.
    Inventors: Nobutaka Ohya, Noriya Tokunaga, Tetsuo Hayase, Masahiro Takahashi
  • Device for Producing Gas Hydrate
    Publication number: 20130195730
    Abstract: To enable long-term continuous operation by preventing blocking of a reaction pipe line disposed in a multi-pipe or double-walled-pipe heat exchanger, provided is a device for producing gas hydrate including a multi-pipe or double-walled-pipe device 1 for generating gas hydrate having a reaction pipe line 2 for flowing raw material water w and raw material gas g and a coolant circulation region 3 for circulating a coolant c and thereby cooling the reaction pipe line 2, wherein a coil spring 4 extending in the longitudinal direction of the reaction pipe line 2 is provided in the reaction pipe line 2.
    Type: Application
    Filed: October 26, 2011
    Publication date: August 1, 2013
    Applicant: Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Nobutaka Ohya, Noriya Tokunaga, Tetsuo Hayase, Masahiro Takahashi