Patents by Inventor Shunji Hosoda

Shunji Hosoda 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).

  • Method for waste water treatment using calcium carbonate mineral and microorganisms in combination
    Patent number: 5580458
    Abstract: An apparatus for waste water treatment, wherein fluorine contained in waste water is treated into a fluoride through a chemical reaction and sludge containing the fluoride is thickened and dehydrated into a sludge cake, has first and second tanks each packed with calcium carbonate mineral. In the first tank, waster water containing fluorine is agitated by air discharged from an air diffuser and caused to react with the calcium carbonate mineral. Through this reaction of the waste water with the calcium carbonate mineral and action of microorganisms on the surface of the calcium carbonate mineral, a pH value and a fluorine concentration of the waste water is adjusted till the pH value and the fluorine concentration fall within their respective predetermined ranges.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: December 3, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyuki Yamasaki, Yoshihiro Hamaguchi, Shunji Hosoda, Kazuyuki Sakata, Takashi Imai, Shigetoshi Okatani, Satoshi Nishio, Tuyoshi Takahashi, Kenji Matuura, Noriyuki Tanaka, Teruaki Nagayasu, Hiroshi Makino
  • Apparatus for waste water treatment using calcium carbonate mineral and microorganisms in combination
    Patent number: 5480537
    Abstract: An apparatus for waste water treatment, wherein fluorine contained in waste water is treated into a fluoride through a chemical reaction and sludge containing the fluoride is thickened and dehydrated into a sludge cake, has first and second tanks each packed with calcium carbonate mineral. In the first tank, waster water containing fluorine is agitated by air discharged from an air diffuser and caused to react with the calcium carbonate mineral. Through this reaction of the waste water with the calcium carbonate mineral and action of microorganisms on the surface of the calcium carbonate mineral, a pH value and a fluorine concentration of the waste water is adjusted till the pH value and the fluorine concentration fall within their respective predetermined ranges.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: January 2, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyuki Yamasaki, Yoshihiro Hamaguchi, Shunji Hosoda, Kazuyuki Sakata, Takashi Imai, Shigetoshi Okatani, Satoshi Nishio, Tuyoshi Takahashi, Kenji Matuura, Noriyuki Tanaka, Teruaki Nagayasu, Hiroshi Makino
  • Method and apparatus for treating developer-containing waste water at multiple biological treatment stages
    Patent number: 5423988
    Abstract: Developer-containing waste water is subjected to a multi-stage biological treatment. A waste water treatment apparatus for carrying out a two-stage biological treatment has an adjustment tank for receiving raw waste water and for preliminarily adjusting water quality of the waste water. First and second contact aeration tanks are used to biologically treat the waste water. First and second settling tanks are connected to the first and second contact aeration tanks for separating by sedimentation sludge from the waste water. Specifically, the first settling tank is connected to the second contact aeration tank. Sludge separated from the waste water is returned from the first and second settling tanks to first and second mixing tanks, respectively, and mixed with Bacillus Subtilis Kubota (BSK) and excess household sludge. The mixture is aerated and then transferred to the first and second contact aeration tanks, respectively.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: June 13, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyuki Yamasaki, Yoshihiro Hamaguchi, Shunji Hosoda, Kazuyuki Sakata, Satoshi Nishio, Takamasa Uchiyama