Patents by Inventor Masahiro Iji

Masahiro Iji 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).

  • Process for treating sludge and system for the same
    Patent number: 5624550
    Abstract: Sludge which is supplied from an untreated sludge tank 3 and diluting water from a diluting water supply facility 14 is charged into a continuous kneading mixer 12 for diluting the sludge to make the specific weight of the sludge 1.15 to 1.35. The diluted sludge is supplied to a dehydrating machine 25 in accordance with the capacity of the used dehydrating machine 25. The diluted sludge is firstly added with an inorganic flocculating agent G and is mixed in a first blender 24A and is then added with a high molecular flocculating agent G2 and is mixed in a second blender 24B. Thereafter, the sludge is supplied to a belt press dehydrating machine 25 in which it is subjected to a dehydrating treatment.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: April 29, 1997
    Assignees: Chemical Grouting Co., Ltd., Front Engineering Co., Ltd., Kurita Water Industries Ltd., Shoeisangyo Corporation
    Inventors: Masahiro Iji, Masami Yoda, Shin Suzuki, Kaoru Ishizuka, Sotoo Kubo, Isao Yamaki, Toshikuni Hashimoto
  • Process for treating sludge and system for the same
    Patent number: 5462672
    Abstract: Sludge which is supplied from an untreated sludge tank 3 and diluting water from a diluting water supply facility 14 is charged into a continuous kneading mixer 12 for diluting the sludge to make the specific weight of the sludge 1.15 to 1.35. The diluted sludge is supplied to a dehydrating machine 25 in accordance with the capacity of the used dehydrating machine 25. The diluted sludge is firstly added with an inorganic flocculating agent G and is mixed in a first blender 24A and is then added with a high molecular flocculating agent G2 and is mixed in a second blender 24B. Thereafter, the sludge is supplied to a belt press dehydrating machine 25 in which it is subjected to a dehydrating treatment.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: October 31, 1995
    Assignees: Chemical Grouting Co., Ltd., Front Engineering Co. Ltd., Kurita Water Industries Ltd., Shoesangyo Corporation
    Inventors: Masahiro Iji, Masami Yoda, Shin Suzuki, Kaoru Ishizuka, Sotoo Kubo, Isao Yamaki, Toshikuni Hashimoto