Patents by Inventor Shigeo Kiuchi

Shigeo Kiuchi 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).

  • Waste water treatment material, waste water treatment method, sludge dehydrating agent and sludge treatment method
    Patent number: 6849201
    Abstract: Sulfonated styrene polymer and/or its salt, a waste water treatment material and sludge dehydrating agent each containing the sulfonated styrene polymer and/or its salt as an effective component thereof are disclosed. The waste water treatment material is used such that sulfonated styrene polymer and/or its salt, which has viscosity of 10 mPa·S to 20,000 mPa·S at 25° C. after 0.01 N to 5 N neutral salt has been added to 1 wt % water solution of the sulfonated styrene polymer and/or its salt, is added to each waste water so that waste water is purified. When a sludge dehydrating agent is required, sulfonated styrene polymer and/or its salt having a weight average molecular weight of 1,100,000 or greater is combined with a cation polymer flocculating agent or an inorganic flocculating agent.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: February 1, 2005
    Assignee: Sony Corporation
    Inventors: Yasuhito Inagaki, Haruo Watanabe, Shigeo Kiuchi, Takaaki Kano
  • Waste water treatment material, waste water treatment method, sludge dehydrating agent and sludge treatment method
    Publication number: 20030160002
    Abstract: Sulfonated styrene polymer and/or its salt, a waste water treatment material and sludge dehydrating agent each containing the sulfonated styrene polymer and/or its salt as an effective component thereof are disclosed. The waste water treatment material is used such that sulfonated styrene polymer and/or its salt, which has viscosity of 10 mPa·S to 20,000 mPa·S at 25° C. after 0.01 N to 5 N neutral salt has been added to 1 wt % water solution of the sulfonated styrene polymer and/or its salt, is added to each waste water so that waste water is purified. When a sludge dehydrating agent is required, sulfonated styrene polymer and/or its salt having a weight average molecular weight of 1,100,000 or greater is combined with a cation polymer flocculating agent or an inorganic flocculating agent.
    Type: Application
    Filed: March 24, 2003
    Publication date: August 28, 2003
    Inventors: Yasuhito Inagaki, Haruo Watanabe, Shigeo Kiuchi, Takaaki Kano
  • Wastewater treating agent, method for wastewater treatment, sludge dehydrant and method for sludge treatment
    Patent number: 6573336
    Abstract: Sulfonated styrene polymer and/or its salt, a waste water treatment material and sludge dehydrating agent each containing the sulfonated styrene polymer and/or its salt as an effective component thereof are disclosed. The waste water treatment material is used such that the sulfonated styrene polymer and/or its salt, which has a viscosity of 10 mPa·S to 20,000 mPa·S at 25° C. after 0.01 N to 5 N of a neutral salt has been added to the 1 wt % water solution of the sulfonated styrene polymer and/or its salt, is added to each waste water so that waste water is purified. When a sludge dehydrating agent is required, the sulfonated styrene polymer and/or its salt having a weight average molecular weight of 1,100,000 or greater is combined with a cation polymer flocculating agent or an inorganic flocculating agent.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: June 3, 2003
    Assignees: Sony Corporation, Lion Corp.
    Inventors: Yasuhito Inagaki, Haruo Watanabe, Shigeo Kiuchi, Takaaki Kano