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Hitachi, Ltd. Patents
Assignee:
Hitachi, Ltd.
Address:
Tokyo, JP
No. of patents:
34611
Patents:












Patent Number Title Of Patent Date Issued
RE43660 Flow sensor using a heat element and a resistance temperature detector formed of a metal film September 18, 2012
The present invention provides a technology capable of achieving a highly-sensitive flow sensor, by forming a metal film having a relatively high TCR on a semiconductor substrate via an insulating film. A measurement device which is a thermal fluid flow sensor includes a heat element
RE43600 External storage control device and data transfer method between external storage control device August 21, 2012
In a data processing system in which main and sub disk storage devices are under the control of individual each disk control devices, the write processing time is reduced by selectively sending data according to the command-chaining time between main and sub disk control devices. A s
RE43105 Tracking error detection method and optical disc reproduction apparatus using the same January 17, 2012
An object of the present invention is to improve a conventional DPD method having a problem that a tracking servo becomes unstable due to a reduction in the accuracy of detecting a phase difference between short mark signals at an edge, in a case where the amplitudes of the short mark
RE43018 Optical disk apparatus and tracking method December 13, 2011
A tracking offset is reduced. The effect of an SPP signal fluctuation is reduced by using a variable mixing ratio DPP method, and a residual tracking offset is minimized.
RE42993 Liquid crystal driver and liquid crystal display device using the same December 6, 2011
A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inv
RE42940 Air flow rate control apparatus November 22, 2011
A throttle control apparatus for an engine on a vehicle is provided, in which the number of component parts in the position detection means and the driven means is reduced to improve the accuracy in its position control and at the same time an integrated wiring is achieved and connec
RE42859 File server that allows an end user to specify storage characteristics with ease October 18, 2011
A file server device is provided which has less chance of error in changing directory settings information. A file server device that has access to a client computer and a disk array device receives a directory settings file, and writes the directory settings file in a specified shar
RE42597 Liquid crystal driver and liquid crystal display device using the same August 9, 2011
A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inv
RE42529 Thermal flow rate measuring device July 12, 2011
A thermal type flow rate measuring device can certainly prevent adhesion of water droplet onto a sensor element and thus achieve high reliability. The thermal type flow rate measuring device includes an auxiliary passage defined within a main passage for introducing a part of fluid flowi
RE42414 Drawing management device having ability to retrieve and display a desired amount of data within May 31, 2011
A drawing management device for managing the drawing of an entire facility, such as a water supply facility, as digital information. This device includes a unit for storing drawings with priorities obtained by separating the entire facility drawing into sub-facility drawings located
RE42309 Liquid crystal display device module and liquid crystal display monitor mounting the liquid crys April 26, 2011
A liquid crystal display module includes a liquid crystal display panel having a liquid crystal layer sandwiched between a pair of substrates, an illuminating device disposed behind the liquid crystal display panel, an upper frame, and a lower frame. The upper and lower frames fix th
RE41868 Semiconductor memory device October 26, 2010
A memory cell with a small surface area is fabricated by forming source lines and data lines above and below and by running the channels to face up and down. The local data lines for each vertically stacked memory cell are connected to a global data line by way of separate selection by a
RE41828 Image display and a manufacturing method of the same October 19, 2010
The present invention provides an image display capable of enhancing a production yield. The image display comprises a display device including a first plate which has a plurality of electron-emitter elements each having a structure comprised of a base electrode, an insulating layer and
RE41678 Half reflection type liquid crystal display device having matched phase of transmitted and refle September 14, 2010
A liquid crystal display device is constructed such that a liquid crystal layer is sandwiched between an upper substrate, which is provided with upper transparent electrodes for forming pixels, and a lower substrate, which is provided with lower transparent electrodes disposed so as to
RE41472 Communication method of supplying information in intelligent network and apparatus therefor August 3, 2010
A communication method for providing information in an intelligent network includes a step of entering by a user a connection number of the user terminal, a connection number of an information provider terminal and a time to receive the information providing service into a user database
RE41378 Liquid crystal display device June 15, 2010
In spite of an increase in the size of a liquid crystal display panel, it is possible to prevent the defective connection of a flexible wiring board to a transparent substrate of the liquid crystal display panel. A liquid crystal display device includes a pair of transparent substrates
RE41312 Method for forming partitions of plasma display panel by using sandblasting process May 4, 2010
A partition is formed by the process including a step for providing a sheet-like partition material that covers a display area and outside thereof on the surface of the substrate, a step for providing a mask for patterning that covers the display area and the outside thereof, so that
RE40973 Liquid crystal driver and liquid crystal display device using the same November 17, 2009
A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inv
RE40916 Liquid crystal driver and liquid crystal display device using the same September 15, 2009
A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inv
RE40769 Method and apparatus for controlling the gray scale of plasma display device June 23, 2009
.[.A method of controlling the gray scale of a plasma display device has a forming step of forming a frame for an image by a plurality of subframes each having a different brightness, a setting step of setting the number of sustain emissions of each subframe in an anti-geometrical progre
RE40706 Liquid crystal display device May 5, 2009
In spite of an increase in the size of a liquid crystal display panel, it is possible to prevent the defective connection of a flexible wiring board to a transparent substrate of the liquid crystal display panel. A liquid crystal display device includes a pair of transparent substrates
RE40523 Non-contact rotational position sensor and throttle valve assembly including non-contact rotatio September 30, 2008
A non-contact sensor for sensing a rotational position of a rotating object is provided. A ring-shaped permanent magnet magnetized in the axial direction is sandwiched between two pairs of magnetic plates from above and below. Two pairs of upper and lower protruded magnetic substance
RE40386 Chrome plated parts and chrome plating method June 17, 2008
Using a chrome plating bath containing organic sulfonic acid, plating is conducted by application of a pulse current to thereby form a crack-free lower chrome layer on a steel substrate. The lower chrome layer has a compressive residual stress of 100 MPa or more and a crystal grain size
RE40382 Apparatus for controlling a throttle valve electronically in an internal combustion engine June 17, 2008
An apparatus for controlling a throttle valve electronically in an internal combustion engine. The actuator 2 is supported on a body 1A by fixing a base plate 7 to a flange 1B of the body 1A with a bolt 6, and an elastic member 9 is fixed at an outer surface of a cylindrical projection
RE40356 Large-capacity semiconductor memory with improved layout for sub-amplifiers to increase operatio June 3, 2008
A semiconductor memory such as a dynamic RAM having memory mats each divided into a plurality of units or sub-memory mats. Each sub-memory mat comprises: a memory array having sub-word lines and sub-bit lines intersecting orthogonally and dynamic memory cells located in lattice fashi
RE40130 Liquid crystal display device video having signal driving circuit mounted on one side March 4, 2008
Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video si
RE39908 Secondary battery power storage system November 6, 2007
The present invention provides a distributed secondary battery type power storage system capable of maintaining the soundness of the secondary battery and of efficient electric power charging and discharging operations. The secondary battery power storage system comprises a secondary
RE39903 Communication method of supplying information in intelligent network and apparatus therefor October 30, 2007
A communication method for providing information in an intelligent network includes a step of entering by a user a connection number of the user terminal, a connection number of an information provider terminal and a time to receive the information providing service into a user database
RE39824 Vacuum processing apparatus and operating method with wafers, substrates and/or semiconductors September 11, 2007
This invention relates to a vacuum processing apparatus having vacuum processing chambers the insides of which must be dry cleaned, and to a method of operating such an apparatus. When the vacuum processing chamber are dry-cleaned, dummy substrates are transferred into the vacuum pro
RE39823 Vacuum processing operating method with wafers, substrates and/or semiconductors September 11, 2007
This invention relates to a vacuum processing apparatus having vacuum processing chambers the insides of which must be dry cleaned, and to a method of operating such an apparatus. When the vacuum processing chambers are dirty-cleaned, dummy substrates are transferred into the vacuum
RE39798 Active matrix LCD device with image signal lines having a multilayered structure August 28, 2007
A liquid crystal display device and a manufacturing method therefor are provided where the number of processes for manufacturing TFT substrates can be decreased and a high production yield can be attained. To attain these objects, an image signal bus-line includes at least a transparent
RE39776 Vacuum processing apparatus and operating method with wafers, substrates and/or semiconductors August 21, 2007
This invention relates to a vacuum processing apparatus having vacuum processing chambers the insides of which must be dry cleaned, and to a method of operating such an apparatus. When the vacuum processing chambers are dry-cleaned, dummy substrates are transferred into the vacuum pr
RE39775 Vacuum processing operating method with wafers, substrates and/or semiconductors August 21, 2007
This invention relates to a vacuum processing apparatus having vacuum processing chambers the insides of which must be dry cleaned, and to a method of operating such an apparatus. When the vacuum processing chambers are dry-cleaned, dummy substrates are transferred into the vacuum pr
RE39756 Vacuum processing operating method with wafers, substrates and/or semiconductors August 7, 2007
This invention relates to a vacuum processing apparatus having vacuum processing chambers the insides of which must be dry cleaned, and to a method of operating such an apparatus. When the vacuum processing chambers are dry-cleaned, dummy substrates are transferred into the vacuum pr
RE39749 Electric vehicle with secondary battery power storage system July 31, 2007
The present invention provides a distributed secondary battery type power storage system capable of maintaining the soundness of the secondary battery and of efficient electric power charging and discharging operations. The secondary battery power storage system comprises a secondary
RE39738 Throttle sensor July 24, 2007
A throttle value spindle (3) is rotatably fixed to a throttle body (1). A recess is provided within the throttle body at one side of the throttle value spindle along the axial direction of the throttle valve spindle. A holder (6) is fixed to the throttle valve spindle within the recess a
RE39684 Automatic automobile transmission with variable shift pattern controlled in response to estimate June 5, 2007
An automatic transmission control system for an automobile, comprising a vehicle weight estimation unit which estimates a vehicle weight of the automobile a torque estimation unit which estimates an output torque, an acceleration input unit which accepts an acceleration signal; a load
RE39366 Liquid crystal driver and liquid crystal display device using the same October 31, 2006
A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inv
RE39257 Air flow rate control apparatus September 5, 2006
A throttle control apparatus for an engine on a vehicle is provided, in which the number of component parts in the position detection means and the driven means is reduced to improve the accuracy in its position control and at the same time an integrated wiring is achieved and connec
RE39253 Apparatus and method for error correction August 29, 2006
Apparatus for recording and/or reproducing user data recorded on a record medium. The apparatus includes record encoder for converting original user data into encoded user data of a predetermined record code and as error correcting code generator for generating original error correcting
RE39134 Automatic transmission control system for an automobile June 13, 2006
An automatic transmission control system for an automobile, comprising a vehicle weight estimation unit which estimates a vehicle weight of the automobile a torque estimation unit which estimates an output torque, an acceleration input unit which accepts an acceleration signal; a load
RE39092 Gas turbine with water injection May 9, 2006
A gas turbine comprises a compressor for compressing a gas supplied therein and discharging the compressed gas, a combustor in which the discharged gas from the compressor and a fuel are combusted, a turbine to be driven by a combustion gas from the combustor, and a water injection u
RE39082 Half reflection type liquid crystal display device having matched phase of transmitted and refle May 2, 2006
A liquid crystal display device is constructed such that a liquid crystal layer is sandwiched between an upper substrate, which is provided with upper transparent electrodes for forming pixels, and a lower substrate, which is provided with lower transparent electrodes disposed so as to
RE39013 Method and apparatus for optical recording and reproducing with tracking servo reducing track of March 14, 2006
Disclosed is an optical recording and reproducing apparatus comprising a light source directing a light spot toward a recording medium, a detection system detecting light reflected from the recording medium to derive an electrical signal from the reflected light, an information proce
RE38944 Semiconductor memory January 24, 2006
A semiconductor memory such as a dynamic RAM having memory mats each divided into a plurality of units or sub-memory mats. Each sub-memory mat comprises: a memory array having sub-word lines and sub-bit lines intersecting orthogonally and dynamic memory cells located in lattice fashi
RE38831 Gas turbine having water spray injection control October 18, 2005
A gas turbine comprises a compressor for compressing a gas supplied therein and discharging the compressed gas, a combustor in which the discharged gas from the compressor and a fuel are combusted, a turbine to be driven by a combustion gas from the combustor, and a water injection unit
RE38661 Method and apparatus for liquid crystal display with intermediate tone November 30, 2004
A liquid crystal display is capable of displaying intermediate, partial or half tones of images, while at the same time preventing the occurrence of flicker and the decay of the liquid crystal panel. The display operation for data to be displayed in an intermediate tone has one or more l
RE38585 Thin film magnetic head and magnetic disk apparatus using the same September 14, 2004
A thin film magnetic head which can suppress magnetic saturation at opposite ends of width of a narrow track width to reduce the amount of recording side-fringing onto a recording medium and which can assure a necessary recording magnetic field satisfactorily. Also a magnetic disk ap
RE38516 Liquid crystal display with casing structure May 18, 2004
.[.Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video
RE38503 Information recording disk April 20, 2004
An information recording disk having a structure that a ring-shaped recording region is divided into a plurality of concentric, annular blocks, each of the blocks is divided in a circumferential direction into a plurality of equal sectors, and a recording track and a pit train for ge

 
 
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