Patents by Inventor Minoru Azuchi

Minoru Azuchi 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).

  • Polymeric flocculant and method of sludge dehydration
    Patent number: 6872779
    Abstract: The invention provides a flocculant which in sludge dewatering gives flocs having an excellent balance among flocculating strength, filtration rate and moisture content, and a method of sludge dewatering with the flocculant. Namely, the flocculant is a polymeric flocculent which contains a copolymer having alkoxyalkyl units or a poly(alkylene oxide) unit and further having water-soluble monomer units; and the method of sludge dewatering includes adding the polymeric flocculant to a sludge after or without adding an inorganic flocculent or an organic cationic compound thereto and then dewatering the sludge.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: March 29, 2005
    Assignee: Toagosei Co., Ltd.
    Inventors: Yoshio Mori, Minoru Azuchi
  • Polymeric flocculant and method of sludge dehydration
    Publication number: 20030042209
    Abstract: The invention provides a flocculant which in sludge dewatering gives flocs having an excellent balance among flocculating strength, filtration rate and moisture content, and a method of sludge dewatering with the flocculant.
    Type: Application
    Filed: June 19, 2002
    Publication date: March 6, 2003
    Inventors: Yoshio Mori, Minoru Azuchi