Patents by Inventor Chikayuki Nagata

Chikayuki Nagata 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: 8209985
    Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: July 3, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata
  • Patent number: 8099959
    Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: January 24, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata
  • Publication number: 20090272113
    Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.
    Type: Application
    Filed: July 22, 2009
    Publication date: November 5, 2009
    Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata
  • Publication number: 20090272114
    Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.
    Type: Application
    Filed: July 22, 2009
    Publication date: November 5, 2009
    Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata
  • Patent number: 7581395
    Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: September 1, 2009
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata
  • Patent number: 7316735
    Abstract: An apparatus, which collects particulate matter contained in a gas flowing through a flow path formed in a cylindrical shape having an outer surface and an inner surface, includes: an outer shell that forms the outer surface of the flow path; a ground electrode that forms the inner surface of the flow path; a filter layer that is arranged between the outer shell and the ground electrode; and a discharge electrode that generates, when a voltage is applied, an ion wind inducing a secondary flow toward the ground electrode in a direction transverse to the flow path. The secondary flow passes through the ground electrode and the filter layer having a predetermined aperture ratio.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: January 8, 2008
    Assignee: Mitsusbishi Heavy Industries, Ltd.
    Inventors: Kazutaka Tomimatsu, Chikayuki Nagata, Morio Kagami, Yasutoshi Ueda
  • Publication number: 20060278082
    Abstract: In a dust collecting apparatus, a flow path (8) through which a gas containing particulate matter flows is formed by arranging a ground electrode (5) in an outer shell (2), a dust-collecting filter layer (6) is arranged adjacent to one side of the ground electrode (5), and a plurality of discharge units (4) of a discharge electrode, to which a voltage is applied to generate an ion wind inducing and forming a secondary flow with respect to the gas, is arranged on the other side of the ground electrode (5), with tips (4a) thereof being away from each other in a direction transverse to the flow path (8).
    Type: Application
    Filed: August 26, 2004
    Publication date: December 14, 2006
    Inventors: Kazutaka Tomimatsu, Chikayuki Nagata, Morio Kagami, Yasutoshi Ueda
  • Publication number: 20060144043
    Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.
    Type: Application
    Filed: November 29, 2005
    Publication date: July 6, 2006
    Inventors: Yasuhiro Takeuchi, Yoshio Nakayama, Tsuyoshi Oishi, Satoshi Nakamura, Shinji Nakamura, Tsuyoshi Dohi, Chikayuki Nagata