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Hitachi, Ltd. Patents
Assignee:
Hitachi, Ltd.
Address:
Tokyo, JP
No. of patents:
29307
Patents:




Patent Number Title Of Patent Date Issued
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
RE38379 Semiconductor memory with alternately multiplexed row and column addressing January 6, 2004
The semiconductor memory receives an external clock signal and has the memory cell array access operation controlled based on the clock signal. In the application of this semiconductor memory to a dynamic RAM, for example, a row address and column address are introduced in synchronism
RE38338 Car electronic control system and method for controlling the same December 2, 2003
A car remote control system utilizing a signal in the form of electromagnetic wave or infrared ray called `keyless entry`. When receiving a predetermined wake-up signal, an MPU is once operated even when the received input signal is a noise signal to perform only judging operation of
RE38296 Semiconductor memory device with recessed array region November 4, 2003
A semiconductor memory wherein a memory cell region having a plurality of memory cells and a relatively high altitude above the surface of semiconductor substrate is formed at a recessed part of the semiconductor substrate having the recessed part and a projected part, and wherein a
RE38235 Scanning recording type printing method and apparatus for increasing image quality by controllin August 26, 2003
A scanning recording type printing method, in which sampled image of tone data is printed by controlling the scanning length and position of a dot which may include a plurality of different colors in the interior of a pixel such that the dots in two adjacent pixels are paired such that n
RE38175 Liquid crystal display element and micro-lens arrangement and a display using the same July 8, 2003
A liquid crystal display includes an illumination optical system which has a light source for emitting light and acts to irradiate the light from the light source on a light bulb on which an optical image is formed in accordance with a video signal, and a transmission-type liquid crystal
RE38072 Fabrication method for AlGaInNPAsSb based devices April 8, 2003
A fabrication process for a semiconductor device including a plurality of semiconductor layers, the plurality of semiconductor layers including at least a nitrogen-containing alloy semiconductor Al.sub.a Ga.sub.b In.sub.1-a-b N.sub.x P.sub.y As.sub.z Sb.sub.1-x-y-z (0.ltoreq.a.ltoreq.1,
RE38059 Semiconductor integrated logic circuit device using a pass transistor April 1, 2003
The semiconductor integrated circuit enjoys a high performance and can be produced at a low production cost and within a short time. A cell has an internal circuit connection such that an output terminal is connected to a plurality of input terminals through source-drain paths of active
RE37996 Manufacturing method or an exposing method for a semiconductor device or a semiconductor integra February 18, 2003
One object of the present invention is to provide the reduced projection exposure method which enables the exposure of various and fine patterns in manufacturing process of semiconductor devices or semiconductor integrated circuit devices. Structure of the present invention to attain the
RE37959 Semiconductor integrated circuit device and method of manufacturing the same January 7, 2003
An EEPROM (Electrically Erasable Programmable Read Only Memory) has a structure in which the corners of a floating gate electrode of each memory cell MISFET near the source region thereof are rounded.The EEPROM is manufactured by a method characterized in that the ions of an impurity at
RE37785 Recording/reproducing separation type magnetic head July 9, 2002
A slider including a recording and reproducing separation type magnetic head includes that a proximal end of a first lead-out conductor is connected to a proximal end of a central winding portion of a coil sued for record, a distal end of the first lead-out conductor is connected to
RE37690 Lead frame and semiconductor device May 7, 2002
A lead frame and a semiconductor device wherein a through hole is formed in the center of a semiconductor chip-mounting surface of a chip pad at the center of the lead frame, the through hole being tapered or being one which corresponds to a surface area that is greater on the surface of
RE37678 Secondary battery power storage system April 30, 2002
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
RE37593 Large scale integrated circuit with sense amplifier circuits for low voltage operation March 19, 2002
Disclosed is a one-chip ULSI which can carry out the fixed operation in a wide range of power supply voltage (1 V to 5.5 V). This one-chip ULSI is composed of a voltage converter circuit(s) which serves to a fixed internal voltage for a wide range of power supply voltage, an input/output
RE37539 Sealed stacked arrangement of semiconductor devices February 5, 2002
A pair of DRAM chips 1A and 1B are mounted opposedly to each other with wiring means such as lead frames put therebetween, the lead frames being substantially integral with external terminals 3B. Then, these DRAM chips and lead frames are connected together by the conventional wire bondi
RE37496 Method of executing a job January 1, 2002
A job processing method is provided for use in an information processing system including three or more information processing devices connected to a common transmission line:(a) first of all, in case the occurrence of a job is detected at one of the three or more processing devices, it
RE37434 Condition adaptive-type control method for internal combustion engines November 6, 2001
To perform the proper control conforming to the intent of a driver of an automotive vehicle under any condition which is encountered by the vehicle, optimum control methods are preliminarily classified in accordance with categories relating to conditions of the vehicle and categories
RE37311 Parallel type nonvolatile semiconductor memory device and method of using the same August 7, 2001
On a semiconductor substrate of a first conductive type is formed a well layer of the same conductive type as that of the substrate in electrically separated that is, physically separated and electrically isolated, from the substrate, and a MOS transistor, used as a nonvolatile memory ce
RE37269 Air intake arrangement for internal combustion engine July 10, 2001
An air intake arrangement for an internal combustion engine comprising: a main air intake conduit leading to a gas intake valve (241) for respective engine cylinders (206) and including a main air intake passage (202), a main collector chamber (204) and independent branching air intake p
RE37244 Insulated type switching device June 26, 2001
In an insulated type switching device, during rotation of a movable conductor 19 around a pivotal axis 35 between a stationary conductor 16 and a ground conductor 17 all of which are disposed in a vacuum vessel 12, the movable conductor 19 uninterruptedly takes four positions of closing
RE37183 Image display panel having antistatic film with transparent and electroconductive properties and May 22, 2001
There are disclosed an image display panel having an antistatic film comprising a SiO.sub.2 coat of transparent and electroconductive properties on the front surface of said panel; the coat containing fine particles of at least one compound selected from electroconductive metal oxide
RE37176 Semiconductor memory May 15, 2001
A dynamic RAM is arranged such that a common data line in each of the non-selected ones of the divided memory arrays is connected to a pair of common source lines of a sense amplifier corresponding to the memory array concerned, whereby the potential of the common data line is set at a

 
 
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