Patents by Inventor Naoyuki Nagafuchi

Naoyuki Nagafuchi 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).

  • Publication number: 20120167952
    Abstract: A heat pump power generation system is provided that can generate electricity by efficiently using solar energy in a wide wavelength range including a visible light range and an infrared range. The heat pump power generation system includes a collector 1 for collecting solar light and solar heat; a power generation panel 8 for generating electricity by receiving the solar light collected by the collector; a switching unit 9 for providing switching control on a place to deliver heat energy collected by the collector or of cold energy generated by cooling; a heat accumulating device 4, 10 for accumulating the cooling energy or the heat energy going through the switching unit: and a heat pump generator 11 for generating electricity by using, as a heat source, the cold energy or heat energy accumulated in the heat accumulating device.
    Type: Application
    Filed: November 30, 2009
    Publication date: July 5, 2012
    Inventors: Tatsuro Yashiki, Naoyuki Nagafuchi
  • Publication number: 20120102955
    Abstract: A thermal power plant is proposed for achieving high reliability, low material cost, and low construction cost by devising the arrangement and structures of a boiler, steam turbines, and a flue gas treatment apparatus to reduce a usage amount of high-temperature resistance material and further to reduce a thermal elongation of piping. In a thermal power plant including a 2 pass-type boiler having a furnace for burning fuel, a rear heat recovery area for recovering heat from combustion gas exhausted from the furnace, steam turbines are arranged near the rear heat recovery area.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 3, 2012
    Applicant: Hitachi, Ltd.
    Inventors: Kenji YAMAMOTO, Masato Handa, Naoyuki Nagafuchi, Naohiro Kusumi, Mitsuko Fukuda, Tsuyoshi Shibata, Shinji Matsuura
  • Patent number: 8082126
    Abstract: A remote maintenance system has a monitoring computer for monitoring a facility and a monitoring center computer for maintenance management. The monitoring computer has a database for storing image data of the monitored facility. The monitoring center computer a database for storing CAD data for the monitored facility. The monitoring center computer provides coordinates to the image data sent from the monitoring computer, and superposes the image coordinate data and CAD coordinate data for the CAD. The center computer locates a needed maintenance location on the basis of the result of the superposition processing.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: December 20, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Nagafuchi, Hidenori Inoue, Toshihiro Morikawa, Jinichiro Goto, Masatoshi Takada
  • Publication number: 20110054965
    Abstract: The power plant life cycle costing system for costing a power plant life cycle according to the present invention includes a flow chart generation unit for generating a power plant system flow chart based on specifications and cost information of major components of the power plant stored in a major component specifications storage unit, and plant specifications input from a plant specifications input unit; a power plant planning unit for calculating and generating a power plant life cycle cost, a plant efficiency and an operation plan including a maintenance plan as optimization indexes of a power plant configuration based on information from the flow chart generation unit, specifications and cost information of auxiliary devices of the power plant stored in a piping and device specifications storage unit, and optimization conditions of a power plant configuration input by an optimizing method selection unit; and an optimized result output unit for outputting a calculated value and a planned result calculate
    Type: Application
    Filed: August 18, 2010
    Publication date: March 3, 2011
    Applicant: Hitachi, Ltd.
    Inventors: Yukinori KATAGIRI, Naoyuki Nagafuchi, Takuya Yoshida, Tatsuro Yashiki
  • Patent number: 7756679
    Abstract: A remote maintenance system has a monitoring computer for monitoring a facility and a monitoring center computer for maintenance management. The monitoring computer has a database for storing image data of the monitored facility. The monitoring center computer has a database for storing CAD data for the monitored facility. The monitoring center computer provides coordinates to the image data sent from the monitoring computer, and superposes the image coordinate data and CAD coordinate data for the CAD. The center computer locates a needed maintenance location on the basis of the result of the superposition processing.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: July 13, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Nagafuchi, Hidenori Inoue, Toshihiro Morikawa, Jinichiro Goto, Masatoshi Takada
  • Publication number: 20090177441
    Abstract: A remote maintenance system has a monitoring computer for monitoring a facility and a monitoring center computer for maintenance management. The monitoring computer has a database for storing image data of the monitored facility. The monitoring center computer a database for storing CAD data for the monitored facility. The monitoring center computer provides coordinates to the image data sent from the monitoring computer, and superposes the image coordinate data and CAD coordinate data for the CAD. The center computer locates a needed maintenance location on the basis of the result of the superposition processing.
    Type: Application
    Filed: February 26, 2009
    Publication date: July 9, 2009
    Inventors: Naoyuki NAGAFUCHI, Hidenori INOUE, Toshihiri MORIKAWA, Jinichiro GOTO, Masatoshi TAKADA
  • Publication number: 20090138324
    Abstract: Quick recovery or recovery support of a faulty power generating facility by real time diagnoses such as facility failure diagnosis, supervision for failure symptoms, facility diagnosis by evaluation of performance using databases between the power generating facilities and an operation control system. The operation control system transfers information on operating status and secular characteristic changes of apparatus from power generating facilities or information from operators of selected power generating facilities. The lever of a failure of a power generating facility which has a failure is evaluated and repairing information (e.g. recovery procedures, processes, required parts, inventory of the parts, possible failure causes, etc.) is automatically created from repairing information prepared in advance for each evaluation condition. The repairing information is then sent to the operation supporting section of the power generating facility.
    Type: Application
    Filed: January 22, 2009
    Publication date: May 28, 2009
    Inventors: Naoyuki NAGAFUCHI, Yasushi IWAI, Hiraku IKEDA
  • Patent number: 7509236
    Abstract: A remote maintenance system is comprised of: a monitoring computer for monitoring a facility; and a monitoring center computer for using maintenance management. The monitoring computer has a database for storing image data of the monitored facility. The monitoring center computer includes: a database for storing CAD data for the monitored facility. The monitoring center computer provides coordinates to the image data sent from the monitoring computer, and superposes the image coordinate data and CAD coordinate data for the CAD. And the center computer locates a needed maintenance spot on the basis of a result of the superposition processing.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: March 24, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Nagafuchi, Hidenori Inoue, Toshihiro Morikawa, Jinichiro Goto, Masatoshi Takada
  • Patent number: 7496429
    Abstract: Quick recovery or recovery support of a faulty power generating facility by real time diagnoses such as facility failure diagnosis, supervision for failure symptoms, facility diagnosis by evaluation of performance using databases between the power generating facilities and an operation control system. The operation control system transfers information on operating status and secular characteristic changes of apparatus from power generating facilities or information from operators of selected power generating facilities. The level of a failure of a power generating facility which has a failure is evaluated and repairing information (e.g. recovery procedures, processes, required parts, inventory of the parts, possible failure causes, etc.) created from repairing information prepared in advance for each evaluation condition. The repairing information is then sent to the operation supporting section of the power generating facility.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: February 24, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Nagafuchi, Yasushi Iwai, Hiraku Ikeda
  • Publication number: 20090037144
    Abstract: When an abnormality or a sign of abnormality occurs in an electric power generating facility, an appropriate operating support can be made in a short time. The electric power facility operation remote supporting method in accordance with the present invention is characterized by that an abnormality or a sign of abnormality is judged based on at least one of information on an operating state of the electric power generating facility and information on time-varying characteristics of components in the electric power generating facility, and a service mode is set based on the judged information of the abnormality or the sign of abnormality, preset abnormality corrective data and preset service modes.
    Type: Application
    Filed: September 23, 2008
    Publication date: February 5, 2009
    Inventors: Naoyuki Nagafuchi, Masao Furukawa
  • Publication number: 20080313021
    Abstract: A power consumption-demand/supply adjustment apparatus comprises: a monitor for a consumption amount of supplied power and the quality of supplied power; a contract-adjustment means for supporting establishing of contract for a power demand/supply by adjusting power demand conditions of a customer and power supply conditions of a power supplier; and banking means for requesting a charge of the consumption amount of supplied power and the quality of supplied power, and a charge to be paid from an accumulated deposit based on the contract; wherein the banking means requests the charge of supplied power and the charge to be paid from an accumulated deposit based on monitoring information sent from the monitor.
    Type: Application
    Filed: August 11, 2008
    Publication date: December 18, 2008
    Inventors: Naoyuki Nagafuchi, Tooru Horie, Jinichiro Gotoh, Takeshi Ishida, Hiroshi Haruyama
  • Publication number: 20080086284
    Abstract: A remote maintenance system is comprised of: a monitoring computer for monitoring a facility; and a monitoring center computer for using maintenance management. The monitoring computer has a database for storing image data of the monitored facility. The monitoring center computer includes: a database for storing CAD data for the monitored facility. The monitoring center computer provides coordinates to the image data sent from the monitoring computer, and superposes the image coordinate data and CAD coordinate data for the CAD. And the center computer locates a needed maintenance spot on the basis of a result of the superposition processing.
    Type: Application
    Filed: September 21, 2007
    Publication date: April 10, 2008
    Inventors: Naoyuki Nagafuchi, Hidenori Inoue, Toshihiro Morikawa, Jinichiro Goto, Masatoshi Takada
  • Publication number: 20070106427
    Abstract: Quick recovery or recovery support of a faulty power generating facility by real time diagnoses such as facility failure diagnosis, supervision for failure symptoms, facility diagnosis by evaluation of performance using databases between the power generating facilities and an operation control system. The operation control system transfers information on operating status and secular characteristic changes of apparatus from power generating facilities or information from operators of selected power generating facilities. The level of a failure of a power generating facility which has a failure is evaluated and repairing information (e.g. recovery procedures, processes, required parts, inventory of the parts, possible failure causes, etc.) created from repairing information prepared in advance for each evaluation condition. The repairing information is then sent to the operation supporting section of the power generating facility.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 10, 2007
    Inventors: Naoyuki Nagafuchi, Yasushi Iwai, Hiraku Ikeda
  • Patent number: 7188004
    Abstract: Quick recovery or recovery support of a faulty power generating facility by real time diagnoses such as facility failure diagnosis, supervision for failure symptoms, facility diagnosis by evaluation of performance using databases between the power generating facilities and an operation control system. The operation control system transfers information on operating status and secular characteristic changes of apparatus from power generating facilities or information from operators of selected power generating facilities. The level of a failure of a power generating facility which has a failure is evaluated and repairing information (e.g. recovery procedures, processes, required parts, inventory of the parts, possible failure causes, etc.) is automatically created from repairing information prepared in advance for each evaluation condition. The repairing information is then sent to the operation supporting section of the power generating facility.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: March 6, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Nagafuchi, Yasushi Iwai, Hiraku Ikeda
  • Publication number: 20070027654
    Abstract: When an abnormality or a sign of abnormality occurs in an electric power generating facility, an appropriate operating support can be made in a short time. The electric power facility operation remote supporting method in accordance with the present invention is characterized by that an abnormality or a sign of abnormality is judged based on at least one of information on an operating state of the electric power generating facility and information on time-varying characteristics of components in the electric power generating facility, and a service mode is set based on the judged information of the abnormality or the sign of abnormality, preset abnormality corrective data and preset service modes.
    Type: Application
    Filed: September 15, 2006
    Publication date: February 1, 2007
    Inventors: Naoyuki Nagafuchi, Masao Furukawa
  • Patent number: 7127374
    Abstract: When an abnormality or a sign of abnormality occurs in an electric power generating facility, an appropriate operating support can be made in a short time. The electric power facility operation remote supporting method in accordance with the present invention is characterized by that an abnormality or a sign of abnormality is judged based on at least one of information on an operating state of the electric power generating facility and information on time-varying characteristics of components in the electric power generating facility, and a service mode is set based on the judged information of the abnormality or the sign of abnormality, preset abnormality corrective data and preset service modes.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: October 24, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Nagafuchi, Masao Furukawa
  • Publication number: 20060136774
    Abstract: A remote maintenance system is comprised of: a monitoring computer for monitoring a facility; and a monitoring center computer for using maintenance management. The monitoring computer has a database for storing image data of the monitored facility. The monitoring center computer includes: a database for storing CAD data for the monitored facility. The monitoring center computer provides coordinates to the image data sent from the monitoring computer, and superposes the image coordinate data and CAD coordinate data for the CAD. And the center computer locates a needed maintenance spot on the basis of a result of the superposition processing.
    Type: Application
    Filed: November 4, 2005
    Publication date: June 22, 2006
    Inventors: Naoyuki Nagafuchi, Hidenori Inoue, Toshihiro Morikawa, Jinichiro Goto, Masatoshi Takada
  • Patent number: 6980891
    Abstract: An operation control system for a plurality of power generating plants and a method of maintaining and managing a plurality of power generating plants which supply power to arbitrary power systems. The operation control system includes a general supervision/diagnosis system which maintains and controls a plurality of power generating plants wherein the general supervision/diagnosis system selects from repairing periods and procedures required to repair failures which occur in the plurality of power generating plants according to levels of failures and performs maintenance and management of power generating plants which have failures. The system also includes means for maintaining a stable total power supply of the plurality of power generating plants.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: December 27, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Nagafuchi, Yasushi Iwai, Hiraku Ikeda
  • Patent number: 6907320
    Abstract: Quick recovery or recovery support of a faulty power generating facility by real time diagnoses such as facility failure diagnosis, supervision for failure symptoms, facility diagnosis by evaluation of performance using databases between the power generating facilities and an operation control system. The operation control system transfers information on operating status and secular characteristic changes of apparatus from power generating facilities or information from operators of selected power generating facilities. The level of a failure of a power generating facility which has a failure is evaluated and repairing information (e.g. recovery procedures, processes, required parts, inventory of the parts, possible failure causes, etc.) is automatically created from repairing information prepared in advance for each evaluation condition. The repairing information is then sent to the operation supporting section of the power generating facility.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: June 14, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Nagafuchi, Yasushi Iwai, Hiraku Ikeda
  • Publication number: 20040254684
    Abstract: Quick recovery or recovery support of a faulty power generating facility by real time diagnoses such as facility failure diagnosis, supervision for failure symptoms, facility diagnosis by evaluation of performance using databases between said power generating facilities and an operation control system.
    Type: Application
    Filed: June 28, 2004
    Publication date: December 16, 2004
    Applicant: HITACHI, LTD.
    Inventors: Naoyuki Nagafuchi, Yasushi Iwai, Hiraku Ikeda