Patents by Inventor Yuzou Nakagawa

Yuzou Nakagawa 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).

  • Carbon nanotube or carbon nanofiber production apparatus and recovery apparatus
    Patent number: 8178049
    Abstract: A discharge gas containing carbon nanotubes and discharged from a reactor unit (12) is led to a filter (26) through a discharge pipe (24). A blower (28) is disposed downstream from the filter (26). The blower (28) is used to such the discharged gas in the discharge pipe (24). Thus, even when the filter has begun to clog, the pressure inside the discharge pipe on the side upstream from the filter is prevented from increasing.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: May 15, 2012
    Assignee: Nikkiso Co., Ltd.
    Inventors: Shuichi Shiraki, Takeji Murai, Yuzou Nakagawa
  • CARBON NANOTUBE OR CARBON NANOFIBER PRODUCTION APPARATUS AND RECOVERY APPARATUS
    Publication number: 20100254860
    Abstract: A discharge gas containing carbon nanotubes and discharged from a reactor (12) is led to a filter (26) through a discharge pipe (24). A blower (28) is disposed downstream from the filter (26). The blower (28) is used to suck the discharge gas in the discharge pipe (24). Thus, even when the filter has begun to clog, the pressure inside the discharge pipe on the side upstream from the filter is inhibited from increasing.
    Type: Application
    Filed: October 16, 2008
    Publication date: October 7, 2010
    Inventors: Shuichi Shiraki, Takeji Murai, Yuzou Nakagawa