Patents by Inventor Takato AOYAMA

Takato AOYAMA 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).

  • Opening/closing device
    Patent number: 10415201
    Abstract: An opening/closing device according to the present invention includes a gate, a fall prevention unit, a support release unit, a first float, a floating prevention unit, a second float, and a floating prevention release unit. The gate receives a flow of fluid, and is able to fall down toward a downstream direction of the flow. The fall prevention unit supports the gate, thereby preventing the gate from falling down. The support release unit releases the support for the gate by the fall prevention unit. The first float is arranged on an upstream side of the gate, is arranged on one of the left side and the right side of the gate viewed from upstream, and is less in the specific gravity than the fluid. The floating prevention unit prevents the first float from floating.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: September 17, 2019
    Assignees: NIPPON KOEI CO., LTD., TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION, KANSEI COMPANY
    Inventors: Motonobu Ito, Tamotsu Kikuchi, Takato Aoyama, Takaaki Odate, Kenji Hasegawa, Osamu Igawa
  • OPENING/CLOSING DEVICE
    Publication number: 20180135266
    Abstract: An opening/closing device according to the present invention includes a gate, a fall prevention unit, a support release unit, a first float, a floating prevention unit, a second float, and a floating prevention release unit. The gate receives a flow of fluid, and is able to fall down toward a downstream direction of the flow. The fall prevention unit supports the gate, thereby preventing the gate from falling down. The support release unit releases the support for the gate by the fall prevention unit. The first float is arranged on an upstream side of the gate, is arranged on one of the left side and the right side of the gate viewed from upstream, and is less in the specific gravity than the fluid. The floating prevention unit prevents the first float from floating.
    Type: Application
    Filed: June 18, 2015
    Publication date: May 17, 2018
    Applicants: NIPPON KOEI CO., LTD., TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION, KANSEI COMPANY
    Inventors: Motonobu ITO, Tamotsu KIKUCHI, Takato AOYAMA, Takaaki ODATE, Kenji HASEGAWA, Osamu IGAWA