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Hitachi Engineering Co., Ltd. Patents
Assignee:
Hitachi Engineering Co., Ltd.
Address:
Ibaraki-ken, JP
No. of patents:
181
Patents:


1 2 3 4










Patent Number Title Of Patent Date Issued
RE35776 Automatic control system for thermal power plant April 28, 1998
An automatic control system for a thermal power plant comprises a master controller controlling a turbine in response to an externally applied load command signal, and producing a boiler input command signal by correcting the load command signal on the basis of the detected pressure of m
7814223 Packet communication device, packet communication system, packet communication system, packet co October 12, 2010
A transmit packet generated by a CPU 1 is held in a buffer 100a (100b). From among packets received from Ethernet 820a (820b), a packet, a destination of which is a communication device 800, is held in the buffer 100a (100b). A packet which should be transmitted is transmitted from a
7641867 Apparatus for processing perfluorocarbon January 5, 2010
An exhaust gas containing a perfluoride component (PFC) and SiIF.sub.4 is conducted into a silicon remover and brought into contact with water. A reaction water supplied from a water supplying piping and air supplied from an air supplying piping are mixed with the exhaust gas exhausted
7577485 Automobile manufacturing line input order planning apparatus August 18, 2009
The invention is intended to provide a building sequence planning system for an automobile production line, which can prepare an efficient building sequence. The system comprises an input unit (1) for inputting information of vehicles to be manufactured, a processing unit (3) for dec
7386067 Frequency offset cancellation circuit for data determination in wireless communications June 10, 2008
A demodulating semiconductor integrated circuit device used in a wireless communication system of an FM-modulation scheme, wherein a circuit for canceling a frequency offset is made of a digital circuit, so as to make a high-accuracy decision as to received data and prevent error frequen
7382681 Semiconductor integrated circuit June 3, 2008
A semiconductor integrated circuit includes a memory circuit, an oscillator circuit which generates an internal clock signal, based on control information held in the memory circuit, and a logic circuit which generates control information that causes the frequency of the internal clo
7367192 Combined cycle plant May 6, 2008
In a combined cycle plant that combines a conventional thermal power plant and a gas turbine plant, there is provided a dump system 1 that connects a main steam pipe 60 with the condenser 25 and dumps the steam generated by the boiler 10 into the condenser 25, bypassing the steam turbine
7310717 Data transfer control unit with selectable transfer unit size December 18, 2007
A data processor including a central processing unit and a data transfer control unit is disclosed. The data transfer control unit has an address register for storing a transfer address. The data transfer control unit transfers data according to a transfer unit size selected from a p
7307421 Magnetic resonance imaging device December 11, 2007
An MRI apparatus having a configuration that reduces vibration of a static magnetic field generating source is provided. A closed vessel 2 of the static magnetic field generating source is provided with a rigid structure 4 for preventing transmission of vibration generated from a gra
7287430 Method of evaluating connected portions, method of connecting electrical winding conductors and October 30, 2007
A method of connecting hollow conductors with a brazing alloy employs a measuring mechanism 10 for measuring a connecting state of a connecting portion after brazing hollow conductors. The measuring mechanism comprises a scanner 101 and a holder 19, which are separated in advance, so
7276908 Magnetic resonance imaging apparatus with suppressed noise October 2, 2007
In the MRI apparatus of the present invention, a reinforcing member is firmly provided so as to enhance the rigidity strength of two connecting tubes connecting upper and lower cryostats, thereby suppression of vibration caused by a gradient magnetic field coil and suppression of var
7196967 Semiconductor integrated circuit March 27, 2007
A semiconductor integrated circuit includes a memory circuit, an oscillator circuit which generates an internal clock signal, based on control information held in the memory circuit, and a logic circuit which generates control information that causes the frequency of the internal clo
7193929 Semiconductor integrated circuit March 20, 2007
A semiconductor integrated circuit includes a memory circuit, an oscillator circuit which generates an internal clock signal, based on control information held in the memory circuit, and a logic circuit which generates control information that causes the frequency of the internal clo
7142213 Graphics drawing device and method November 28, 2006
In a device and system which perform processing (displaying and outputting) of image data, the amount of data transferred between a memory holding the image data and a processor processing the image data is limited, thereby a great amount of data can be processed at high speed.
7141221 Apparatus for processing perfluorocarbon November 28, 2006
An exhaust gas containing a perfluoride component (PFC) and SiF.sub.4 is conducted into a silicon remover and brought into contact with water. A reaction water supplied from a water supplying piping and air supplied from an air supplying piping are mixed with the exhaust gas exhausted
7136433 Frequency offset cancellation circuit for data determination in FM wireless communications November 14, 2006
A demodulating semiconductor integrated circuit device used in a wireless communication system of an FM-modulation scheme, wherein a circuit for canceling a frequency offset is made of a digital circuit, so as to make a high-accuracy decision as to received data and prevent error frequen
7126448 Superconducting magnet apparatus and magnetic resonance imaging apparatus using the same October 24, 2006
An MRI apparatus includes magnet members for compensating the magnetic field which are disposed to a thermal shield system of the superconducting apparatus. The magnet members for compensating the magnetic field are disposed at positions where temperature change in the vacuum chamber
7061825 Semiconductor integrated circuit June 13, 2006
A semiconductor integrated circuit includes a memory circuit, an oscillator circuit which generates an internal clock signal, based on control information held in the memory circuit, and a logic circuit which generates control information that causes the frequency of the internal clo
6983585 Combined cycle plant January 10, 2006
In a combined cycle plant that combines a conventional thermal power plant and a gas turbine plant, there is provided a dump system 1 that connects a main steam pipe 60 with the condenser 25 and dumps the steam generated by the boiler 10 into the condenser 25, bypassing the steam turbine
6982060 Chemical decontamination liquid decomposing system having catalyst tower and catalyst tower ther January 3, 2006
An object of the present invention is to provide a chemical decontamination liquid decomposing system having a catalyst tower which has a mesh filter capable of certainly preventing catalyst from flowing out and a mechanism of pushing-down the catalyst capable of preventing convectio
6937339 Inspection device and system for inspecting foreign matters in a liquid filled transparent conta August 30, 2005
In an inspection device for inspecting for possible foreign matters contaminating a liquid filled transparent container, a red color illumination unit 23A is disposed behind a glass container 22 filled with liquid and a pair of blue color illumination units 23B and 23C are disposed s
6907891 Radioactive substance decontamination method and apparatus June 21, 2005
A radioactive substance decontamination method and apparatus which decontaminates a metal member contaminated by radioactive substance in a short period of time. This apparatus has (1) multiple reducing decontamination tanks having different radiation control values; (2) a carrier fo
6882422 Inspection device for body to be inspected and inspection device of foreign matters in liquid fi April 19, 2005
In an inspection device of possible foreign matters included in transparent containers (20), the transparent containers (20) are successively loaded through a loader rotor (11) on to respective rotatable stands (8) arranged along the circumference on an inspection rotor (1). Each of plur
6837673 Turbine-unit disassembling method and turbine unit January 4, 2005
Supports are provided on the upper outer casing of each turbine of a turbine unit, and the upper inner casing of the turbine is temporarily placed on the supports of the upper outer casing, which is temporarily placed on the operating floor. By placing the casings temporarily in that
6818188 Radioactive waste treatment facility November 16, 2004
An injection and solidification operation as well as a kneading and solidification operation can be performed by a single facility. A decreased amount of radioactive secondary waste is generated. A solidifying agent paste is prepared by kneading a solidifying agent and additive water
6781590 Graphic processing system having bus connection control functions August 24, 2004
A graphic processing system having a main memory for storing a program and information corresponding to pixels, a main processor for executing a program transferred from the main memory or from external to control the system, display/output devices for outputting graphic information atta
6767519 Chemical decontamination liquid decomposing system having catalyst tower and catalyst tower ther July 27, 2004
An object of the present invention is to provide a chemical decontamination liquid decomposing system having a catalyst tower which has a mesh filter capable of certainly preventing catalyst from flowing out and a mechanism of pushing-down the catalyst capable of preventing convection of
6757621 Process management system June 29, 2004
A process management system in accordance with the present invention includes inspection apparatuses for inspecting defects on a wafer, the inspection apparatuses being connected through a communication network, inspection information and image information obtained from these inspect
6731291 Image processing device and system using the same May 4, 2004
In a device and system which perform processing (displaying and outputting) of image data, the amount of data transferred between a memory holding the image data and a processor processing the image data is limited, thereby a great amount of data can be processed at high speed.
6728329 Fuel assembly April 27, 2004
A fuel assembly having a plurality of fuel rods arranged in a square lattice array. The fuel rods include a plurality of short-length fuel rods each having a fuel active length shorter than that of each of remaining ones of the fuel rods. At least one water rod is arranged in a region in
6697070 Graphic processing system February 24, 2004
A graphic processing system has a processor for managing a display area and a character font area both include within an are disposed in the address space. From coded information indicative of a character transferred through a data bus of the system, the processor generates an address at
6693640 Image processing apparatus and image processing system using the apparatus February 17, 2004
An image processing apparatus is composed of a plurality of function processing units for performing image processing, a high priority function selection part for selecting functions, execution of each of which is required by a corresponding one of the function processing units, based on
6688057 Structure of liner and primary containment vessel using its structure February 10, 2004
The present invention aims to reduce the manufacturing work load of a structure of a liner of a concrete wall. A plurality of liner anchors 10 is constructed longitudinally to one surface of a liner 11, and a plurality of flat bars 14 is constructed transversely to the other surface
6657459 Gate circuit and semiconductor circuit to process low amplitude signals, memory, processor and i December 2, 2003
A semiconductor integrated circuit device, responsive to an input signal having a low amplitude and short transition time, operates with low power consumption and prevents the flow of breakthrough current. In an example circuit thereof, the input signal is transmitted through an NMOS pas
6654438 Control rod for boiling water reactor, unit for control rod and production method of control rod November 25, 2003
A control rod for a BWR according to the present invention comprises a first unit composed of a tie rod, a handle mounted on an axially upper portion of the tie rod and a lower support member or falling speed limiter mounted on a axially lower portion of the tie rod; and a second unit
6652817 Apparatus for processing organohalogen compounds November 25, 2003
An apparatus for processing an organohalogen compounds includes a catalyst container containing a catalyst layer, a supplying path for supplying a carrier gas containing organohalogen compounds and steam through the catalyst container, a cooling chamber arranged at a lower portion of the
6639962 Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel October 28, 2003
A preventive maintenance method and apparatus for a structural member in a reactor pressure vessel according to the present invention reduce a tensile residual stress on a surface of the structural member by impinging a water jet from a nozzle onto a plane surface of a deflector to there
6621204 Color cathode ray tube having a deflection unit September 16, 2003
A clamp unit which brings respective vertical and horizontal cores and bias magnets of a magnetic current modulator into close contact with each other in the core arrangement direction is provided to a resin casing of the magnetic current modulator. Due to such a constitution, the genera
6609878 Method of disassembling turbine equipment and the turbine equipment August 26, 2003
Supports are provided on the upper outer casing of each turbine of a turbine unit, and the upper inner casing of the turbine is temporarily placed on the supports of the upper outer casing, which is temporarily placed on the operating floor. By placing the casings temporarily in that
6574295 Boiling water type nuclear reactor use control rod June 3, 2003
In order to provide a boiling water type nuclear reactor use control rod with a guide use roller which improves corrosive environment at a clearance in the guide use roller and suppresses a generation of stress corrosion cracking while maintaining sliding function of the control rod
6538653 Graphic processing system for displaying characters and pictures at high speed March 25, 2003
A graphic processing system has a processor for managing a display area and a character font area both included within an address space. From coded information indicative of a character transferred through a data bus of the system, the processor generates an address at which a character
6519991 Water jet peening apparatus February 18, 2003
A water jet peening apparatus which can carry out an efficient peening work on a large-diameter cylindrical structure by injecting a jet stream which contains air bubbles caused by cavitation at a low angle of incidence is provided. The apparatus is comprised of a nozzle which introduces
6516043 Fuel assembly and reactor core and fuel spacer and channel box February 4, 2003
A fuel assembly includes a plurality of fuel rods placed in a square lattice array of 9-rows/9-columns and at least one water rod. In this fuel assembly, the fuel rod pitch of the plurality of fuel rods is in a range of 14.15 mm to 14.65 mm, and means for offsetting and holding a fuel
6512413 Voltage booster circuit apparatus January 28, 2003
A voltage boost circuit operates by applying a power supply voltage to both terminals of a booster capacitance in a discharge period; and, in a charging period which follows the discharge period, by turning on a switching circuit in response to application of one shot pulse thereto, a
6504587 Liquid crystal display device in which the inner frame having sidewall January 7, 2003
A liquid crystal display device includes a liquid crystal display panel having a liquid crystal layer sandwiched between a pair of upper and lower substrates, an illuminating light source disposed behind the liquid crystal display panel, an upper case made of metal having a sidewall bent
6492992 Graphic pattern processing apparatus December 10, 2002
A data processing apparatus which processes data held in memory. The data processing apparatus includes an address operation unit which obtains an address to read one-word data from the memory, wherein the one-word data is a unit of data access to the memory, and a logical operation unit
6462580 Gate circuit and semiconductor circuit to process low amplitude signals, memory, processor and i October 8, 2002
The object of the present invention to provide a semiconductor integrated circuit device wherein the input signal is made to have a low amplitude to shorten transition time of the input signal, said integrated circuit device operating at a low power consumption, without flowing of br
6438050 Signal transmission circuit and semiconductor memory using the same August 20, 2002
A transmission circuit for transmitting a data signal between circuit units through a signal wire. The data signal is transmitted for precharging the signal wire to high potential during a precharge period and discharging it to low potential according to data transmitted during an evalua
6433623 Voltage booster circuit control method August 13, 2002
A voltage boost circuit operates by: applying a power supply voltage to both terminals of a booster capacitance in a discharge period; and in a charging period which follows the discharge period, by turning on a switching circuit in response to application of one shot pulse thereto, a
6429871 Graphic processing method and system for displaying a combination of images August 6, 2002
A graphic processing method and system which is capable of displaying a combination of images from, for example, an external source such as TV signals and graphic data generated by a graphic processor, whereby the graphic processor fetches horizontal synchronizing signals and vertical
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