Patents by Inventor Hirofumi Ohnari

Hirofumi Ohnari 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).

  • Patent number: 12678747
    Abstract: A swirling-type microbubble generation device can discharge a swirling gas-liquid mixture containing a large volume of microbubbles into air in a concentrated manner by being placed in proximity to a jetting target, or in proximity to or in close contact with the jetting target in the air, or discharging such a mixture into water in a hot water tank, and discharging a swirling gas-liquid mixture containing a large volume of microbubbles as shower. The microbubble generation device includes a cylindrical container body that is closed at one end by a wall body and is open at the other end, a gas inlet provided in the wall body of the cylindrical container body on the one end side, and a pressurized liquid inlet provided in part of the circumferential wall of the cylindrical container body such that it is open in the direction of the tangent to the inner circumference thereof.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: July 14, 2026
    Assignee: NANOPLANET RESEARCH INSTITUTE LTD.
    Inventors: Hirofumi Ohnari, Yoshito Ohnari
  • Publication number: 20240278196
    Abstract: A swirling-type microbubble generation device can discharge a swirling gas-liquid mixture containing a large volume of microbubbles into air in a concentrated manner by being placed in proximity to a jetting target, or in proximity to or in close contact with the jetting target in the air, or discharging such a mixture into water in a hot water tank, and discharging a swirling gas-liquid mixture containing a large volume of microbubbles as shower. The microbubble generation device includes a cylindrical container body that is closed at one end by a wall body and is open at the other end, a gas inlet provided in the wall body of the cylindrical container body on the one end side, and a pressurized liquid inlet provided in part of the circumferential wall of the cylindrical container body such that it is open in the direction of the tangent to the inner circumference thereof.
    Type: Application
    Filed: June 22, 2022
    Publication date: August 22, 2024
    Inventors: Hirofumi OHNARI, Yoshito OHNARI
  • Patent number: 7472893
    Abstract: The swirling type micro-bubble generating system according to the present invention possesses a container main unit having a cylindrical space with bottom or a frusto conically shaped space, a liquid inlet provided in tangential direction on a part of circumferential surface of inner wall of the space, a gas introducing hole provided on the bottom of the cylindrical space or opening of the frusto conically shaped space, and a swirling gas-liquid mixture outlet arranged at the top of the cylindrical space or opening of the frusto conically shaped space. According to this system, it is possible to readily generate micro-bubbles in industrial scale, and the system is relatively small in size and has simple structure and can be easily manufactured. The system can be used in the applications such as purification of water quality in ponds, lakes, marshes, man-made lakes, rivers, etc.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: January 6, 2009
    Inventor: Hirofumi Ohnari
  • Publication number: 20070267763
    Abstract: The swirling type micro-bubble generating system according to the present invention comprises a container main unit having a cylindrical space with bottom or a megaphone-like space, a liquid inlet provided in tangential direction on a part of circumferential surface of inner wall of said space, a gas introducing hole provided on the bottom of said cylindrical space or opening of said megaphone-like space, and a swirling gas-liquid mixture outlet arranged at the top of said cylindrical space or opening of said megaphone-like space. According to this system, it is possible to readily generate micro-bubbles in industrial scale, and the system is relatively small in size and has simple structure and can be easily manufactured. The system can be used in the applications such as purification of water quality in ponds, lakes, marshes, man-made lakes, rivers, etc.
    Type: Application
    Filed: July 25, 2007
    Publication date: November 22, 2007
    Inventor: Hirofumi Ohnari
  • Patent number: 7261283
    Abstract: The swirling type micro-bubble generating system according to the present invention possesses a container main unit having a cylindrical space with bottom or a frusto-conically shaped space, a liquid inlet provided in a tangential direction on a part of a circumferential surface of an inner wall of said space, a gas introducing hole provided on the bottom of said cylindrical space or opening of said frusto-conically shaped space, and a swirling gas-liquid mixture outlet arranged at the opposite end of said cylindrical space or opening of said frusto-conically shaped space. According to this system, it is possible to readily generate micro-bubbles in an industrial scale, and the system is relatively small in size and has simple structure and can be easily manufactured. The system can be used in applications such as purification of water quality in ponds, lakes, marshes, man-made lakes, rivers, etc.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: August 28, 2007
    Inventor: Hirofumi Ohnari
  • Patent number: 6382601
    Abstract: The swirling type micro-bubble generating system according to the present invention has a container main unit having a conical space or a bottle-like space, a liquid inlet provided in tangential direction on a part of circumferential surface of inner wall of said space, a gas introducing hole provided on the bottom of said space, and a swirling gas-liquid outlet arranged at the top of said space. According to this system, it is possible to readily generate micro-bubbles in industrial scale, and the system is relatively small in size and has simple structure and can be easily manufactured. The system can be used in the applications such as purification of water quality in ponds, lakes, marshes, man-made lakes, rivers, etc., for processing of polluted water using microorganisms, culture of fishes and other aquatic animals, and increase of oxygen and dissolved oxygen in culture solution in hydroponic culture farm and improvement of production yield.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: May 7, 2002
    Inventor: Hirofumi Ohnari