Patents by Inventor Kiwamu Ishii

Kiwamu Ishii 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).

  • Patent number: 8163970
    Abstract: A method including carrying out adiabatic cooling and evaporation operation of a coolant in a crystallizer (20) for a mixture solution of a target organic compound containing the coolant; taking out crystal slurry produced by the operation from the crystallizer (20); pressurizing evaporated vapor to a pressure higher than the operation pressure in the crystallizer (20) by a compressor (30) and then introducing the vapor to an absorption condenser (10); cooling for condensation the mixture solution of organic compound and the evaporated vapor that has been pressurized while allowing them to contact each other in the absorption condenser (10); introducing the crystal slurry taken out of the crystallizer (20) to a purification means (70) for purification of the crystal; and introducing a clarified liquid in the purification means (70) to at least one of the crystallizer (20) and the absorption condenser (10).
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: April 24, 2012
    Assignee: Tsukishima Kikai Co., Ltd.
    Inventors: Keizo Takegami, Junji Wakayama, Kiwamu Ishii, Kenji Ouchi
  • Patent number: 7900473
    Abstract: The present invention provides a method for adiabatic cooling type crystallization of organic compound and an apparatus therefore, by which running cost and facility cost can be reduced. The method comprises carrying out adiabatic cooling and evaporation operation of a coolant in a crystallizer 20 for a mixture solution of a target organic compound containing the coolant; taking out crystal slurry produced by the operation from the crystallizer 20; pressurizing evaporated vapor to a pressure higher than the operation pressure in the crystallizer 20 by a compressor 30, introducing the vapor to an absorption condenser 10; cooling for condensation the mixture solution of organic compound and the evaporated vapor that has been pressurized while allowing them to contact each other in the absorption condenser 10; and introducing this absorption condensate to the crystallizer 20.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: March 8, 2011
    Assignee: Tsukishima Kikai Co., Ltd.
    Inventors: Keizo Takegami, Junji Wakayama, Kiwamu Ishii
  • Publication number: 20100192625
    Abstract: The present invention provides a method for adiabatic cooling type crystallization of organic compound and an apparatus therefore, by which running cost and facility cost can be reduced. The method comprises carrying out adiabatic cooling and evaporation operation of a coolant in a crystallizer 20 for a mixture solution of a target organic compound containing the coolant; taking out crystal slurry produced by the operation from the crystallizer 20; pressurizing evaporated vapor to a pressure higher than the operation pressure in the crystallizer 20 by a compressor 30, introducing the vapor to an absorption condenser 10; cooling for condensation the mixture solution of organic compound and the evaporated vapor that has been pressurized while allowing them to contact each other in the absorption condenser 10; and introducing this absorption condensate to the crystallizer 20.
    Type: Application
    Filed: March 7, 2006
    Publication date: August 5, 2010
    Inventors: Keizo Takegami, Junji Wakayama, Kiwamu Ishii
  • Publication number: 20090112040
    Abstract: The present invention provides a method for adiabatic cooling type crystallization of organic compound and an apparatus therefore, by which running cost and facility cost can be reduced.
    Type: Application
    Filed: March 7, 2006
    Publication date: April 30, 2009
    Inventors: Keizo Takegami, Junji Wakayama, Kiwamu Ishii, Kenji Ouchi
  • Patent number: 6955714
    Abstract: A collecting facility for collecting a component of a high melting point in a gas that includes a collecting tower through which a gas flows, a treating liquid projecting apparatus projecting treating liquid having temperature not higher than the melting point of a high melting point component in the gas in the collecting tower, and an extracting device for extracting from the inside of the collecting tower a slurry composed of the treating liquid and the high melting point component solidified by contact with the treating liquid.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: October 18, 2005
    Assignees: Tsukishima Kikai Co., Ltd., Idemitsu Kosan Co., Ltd.
    Inventors: Kenji Oouchi, Kiwamu Ishii, Jyunji Wakayama, Tomio Ohno
  • Publication number: 20040097700
    Abstract: A facility of collecting a component of high melting point in a gas, excellent in treating efficiency and having a relatively simple structure is provided.
    Type: Application
    Filed: August 8, 2003
    Publication date: May 20, 2004
    Applicants: Tsukishima Kikai Co., Ltd., Idemitsu Petrochemical Co., Ltd.
    Inventors: Kenji Oouchi, Kiwamu Ishii, Jyunji Wakayama, Tomio Ohno