Patents by Inventor Keio Nasu

Keio Nasu 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).

  • CONSTANT FLOW VALVE
    Publication number: 20090173399
    Abstract: An object of the present invention is to provide a constant flow valve able to make the flow rate constant at all times even if the upstream and downstream side fluid pressure of the valve fluctuates for a large flow rate fluid and able to set the flowing fluid to any flow rate.
    Type: Application
    Filed: November 8, 2007
    Publication date: July 9, 2009
    Applicant: Asahi Organic Chemicals Industry Co., Ltd.
    Inventors: Toshihiro Hanada, Keio Nasu