Patents Assigned to Hitachi
  • Patent number: 8596113
    Abstract: An intake air temperature sensor capable of detecting an intake air temperature highly accurately and at high speed. The intake air temperature sensor of the present invention includes: a secondary passage 7 taking in an intake airflow; a flow rate detecting element 13 disposed in the secondary passage 7; an intake air temperature detecting element 4 provided outside the secondary passage; a temperature sensor 9 detecting a temperature of a fitting section of the intake air temperature detecting element 4; a circuit board 11 disposed in a casing; and an integrated circuit 10 applying a correction process to an output of the intake air temperature detecting element 4 on the basis of signals output from the temperature sensor 9 and a flow rate detecting element 13.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: December 3, 2013
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Masahiro Matsumoto, Hiroshi Nakano, Keiji Hanzawa, Satoshi Asano
  • Patent number: 8596231
    Abstract: Disclosed is an engine system with a reformer, the engine system comprising a reformer and driving an engine using, as a fuel, a reformed fuel produced by reforming pre-reformed fuel with the reformer, in which the reformer is connected with both a pre-reformed fuel supply adjustment unit which adjusts the amount of the pre-reformed fuel supplied to the reformer and a reformed fuel supply adjustment unit which adjusts the amount of reformed fuel supplied to the engine, and the reformer is installed adjacent to the engine combustion chamber via the reformed fuel supply adjustment unit.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: December 3, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Shimada, Takao Ishikawa, Tadashi Sano
  • Patent number: 8596870
    Abstract: A dust seal is provided with a tubular fitting portion, a bush end surface abutting portion, a lip portion and a sealing projection integrally formed. The sealing projection is formed to project in an axially opposite direction to the lip portion from a radial inner section of the bush end surface abutting portion and abuts against a chamfered portion of a bush in such a manner as to overlap the chamfered portion. Therefore, at the time of supplying lubricant between the bush and a connecting pin, the sealing projection can prevent a part of the lubricant from entering between an end surface of the bush and the bush end surface abutting portion of the dust seal to maintain a sealed state therebetween. In consequence, the dust seal can be stably held on the inner peripheral side of a boss member, preventing the pulling-out of the dust seal.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: December 3, 2013
    Assignees: Hitachi Construction Machinery Co., Ltd., Nippon Valqua Industries, Ltd.
    Inventors: Hideki Akita, Osamu Gokita, Akiko Sato, Eiji Negoro, Tomiyoshi Yamazaki
  • Patent number: 8598971
    Abstract: To provide a magnetic field control apparatus capable of reducing a width of a correcting plate. The magnetic field control apparatus includes a conductive vacuum duct 1 disposed between dipole magnet magnetic poles 3 and a conductive correcting plate 2. The correcting plate 2 is formed of a material having an electric conductivity higher than that of the vacuum duct 1. A plurality of conductive correcting plates 2 are disposed in each of four areas, the four areas being formed by dividing a cross section of a vacuum duct 1 extending perpendicularly to a direction in which a charged particle beam travels by a symmetrical surface having each of both magnetic poles of the dipole magnet defined as a mirror image and a plane which extends perpendicularly to the symmetrical surface and through which a center of gravity of the charged particle beam passes.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: December 3, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Takahiro Yamada, Fumiaki Noda
  • Patent number: 8598939
    Abstract: A T/R switch applicable to an ultrasonograph and capable of transmitting a signal reflected from a living body over a wide band with low noise without causing erroneous operation of the switch or element destruction even when the potential of a transmission signal or reflected signal changes includes: a common source terminal commonly and serially coupling the source terminals of two MOS transistors; a common gate terminal commonly coupling the gate terminals of the two MOS transistors; a main switch, the drain terminals of which are connected to input/output terminals; and a floating voltage circuit which is connected to the common gate terminal and common source terminal, makes the common gate terminal potential follow, in phase, variation in the common source terminal potential, and sends a signal to turn the switch on or off to the common gate terminal.
    Type: Grant
    Filed: January 15, 2012
    Date of Patent: December 3, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Tetsuhiro Shimizu, Satoshi Hanazawa, Toshio Shinomiya, Hiroyasu Yoshizawa
  • Patent number: 8599992
    Abstract: A method and apparatus for providing a Boiling Water Reactor (BWR) jet pump inlet-mixer integral slip joint clamp to constrain the inlet mixer and diffuser to mitigate inlet mixer flow induced vibration of a BWR jet pump assembly. The slip joint clamp includes horizontally projecting flanges with vertical sidewalls that protrude toward a lowest distal end of the inlet mixer. Fasteners penetrating the flanges provide a biasing load on the diffusers by being tightened to press against an upper crown on the diffuser. One or more flanges may be used. Laterally disposed gaps between the flanges may provide a clearance for guide ears of the diffuser to fit between the flanges.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: December 3, 2013
    Assignee: GE-Hitachi Nuclear Energy Americas, LLC
    Inventor: Robin D. Sprague
  • Patent number: 8599991
    Abstract: A boiling water reactor has a core disposed in the reactor pressure vessel and loaded with a plurality of fuel assemblies including transuranic nuclides. A ratio of Pu-239 in all of the transuranic nuclides included in the fuel assembly, which is loaded in the core, with a burnup of 0 is 3% or more but 45% or less. In the fuel assembly having a channel box and a plurality of fuel rods disposed in the channel box, a transverse cross section of a fuel pellet in the fuel rod occupies 30% or more but 55% or less of a transverse cross section of a unit fuel rod lattice in the channel box.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: December 3, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Renzo Takeda, Junichi Miwa, Kumiaki Moriya
  • Patent number: 8600689
    Abstract: An automatic analyzer includes a function in which the measured data of a quality control sample is compared with reference maximum and minimum values of measured data of the quality control sample. When the measured data is out of the range between the reference maximum and minimum values, re-measurement for calibration is recommended to a user who can easily confirm the recommendation on an operation screen and request the re-measurement.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: December 3, 2013
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Toshihide Orihashi, Yoshimitsu Takagi, Mikio Kasama
  • Patent number: 8601593
    Abstract: The consistency between an application output destination and a permitted user for an I/O device section is ensured when a user deploys an application for processing and outputting input data onto an entrance node. The entrance node includes an output destination/user table that manages correspondence between an application output destination and a user. The output destination/user table stores information about the output destination used for each user who uses the entrance node. An application deployment management function of a processing section in the entrance node determines whether application deployment can be accepted from a user. To do this, the application deployment management function specifies a user corresponding to the output destination for the application from the output destination/user table and verifies that the user is consistent with a user permitted for an I/O device in the I/O device section used by the application.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: December 3, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Nobuyuki Muranaka, Yuji Ogata, Koki Nakashiro, Masaki Yamada
  • Patent number: 8598603
    Abstract: Provided is a liquid crystal display device, including: a liquid crystal display panel; and a backlight unit, in which: the backlight unit includes: a plurality of light emitting diodes each having an anode and a cathode; a first substrate; and a second substrate, the plurality of light emitting diodes being mounted on the first substrate and the second substrate; the first substrate and the second substrate are disposed adjacent to each other; light emitting diodes which are adjacent across a boundary between the first substrate and the second substrate are disposed so that the respective anodes are opposed to each other and so as to have a pitch equal to or smaller than a pitch of other adjacent light emitting diodes.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: December 3, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Display Co., Ltd.
    Inventors: Masashi Baba, Ikuko Imajo, Isao Matsuda
  • Patent number: 8600535
    Abstract: Disclosed are a device, a system, and a method for setting standard work times that take real-world manufacturing capabilities into account. Provided is a standard work time calculation device (10), which analyzes fluctuations in production line assessment indices on a per time period basis, and computes standard work times for each region, as classified according to the degree of fluctuation. The standard work time calculation device (10) comprises a fluctuation coefficient computation unit (111), which computes coefficients of fluctuation for the assessment indices, a fluctuation region identification unit (112), which identifies regions of fluctuation with coefficients of fluctuation that are greater than or equal to predetermined thresholds, and a standard work time computation unit (113), which computes standard work times for regions of fluctuation.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: December 3, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Youichi Nonaka, Makoto Ono, Hisaya Ishibashi, Attila Lengyel, Yuuichi Suginishi, Tomotoshi Ishida
  • Patent number: 8599244
    Abstract: An imaging apparatus comprises an image pickup unit, a cutout image generation unit for cutting out a specified area in a pickup image taken by the image pickup unit to generate a cutout image enlarged at a specified magnification, an image display unit for displaying one or both of the pickup image taken by the image pickup unit and the cutout image generated by the cutout image generation unit, a display image control unit for controlling a method of displaying an image the image display unit displays, a manual focus operation unit for the user to control through manual operation the focus position of the image pickup unit, and a manual zoom operation unit for the user to control the zoom magnification of the image pickup unit.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: December 3, 2013
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Shinichiro Hirooka, Hiroshi Chiba
  • Patent number: 8598473
    Abstract: A bus bar electrical feedthrough for an electrorefiner system may include a retaining plate, electrical isolator, and/or contact block. The retaining plate may include a central opening. The electrical isolator may include a top portion, a base portion, and a slot extending through the top and base portions. The top portion of the electrical isolator may be configured to extend through the central opening of the retaining plate. The contact block may include an upper section, a lower section, and a ridge separating the upper and lower sections. The upper section of the contact block may be configured to extend through the slot of the electrical isolator and the central opening of the retaining plate. Accordingly, relatively high electrical currents may be transferred into a glovebox or hot-cell facility at a relatively low cost and higher amperage capacity without sacrificing atmosphere integrity.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: December 3, 2013
    Assignee: GE-Hitachi Nuclear Energy Americas LLC
    Inventors: Mark Á Williamson, Stanley G. Wiedmeyer, James L. Willit, Laurel A. Barnes, Robert J. Blaskovitz
  • Publication number: 20130318376
    Abstract: A data processing system includes a plurality of power supply modules each having a comparing unit for comparing an output-current value supplied to a computer with a threshold value, the plurality of power supply modules continue the comparison when the output-current value is equal to or less than the threshold value and outputs an output-current excess signal to a plurality of server blades when the output-current value is equal to or greater than the threshold value, and the plurality of server blades control respectively power consumptions of the server blades to make a power consumption value of the server blades to an equal to or less than a predetermined value on a power source non-redundancy.
    Type: Application
    Filed: August 1, 2013
    Publication date: November 28, 2013
    Applicant: Hitachi, Ltd.
    Inventors: Ryo SAWAI, Koichi HASEGAWA, Yusuke MURE, Kazuya TANIGUCHI
  • Publication number: 20130314284
    Abstract: Provided is an antenna device including a substrate, a metal chassis disposed adjacent a rear surface of the substrate, multiple patch antenna elements formed in an array on a front surface of the substrate, feeding lines formed on the front surface of the substrate and through which electricity is fed to the multiple patch antenna elements, and a ground conductor formed on the rear surface of the substrate in a portion opposite the feeding lines.
    Type: Application
    Filed: March 14, 2013
    Publication date: November 28, 2013
    Applicant: Hitachi Cable, Ltd.
    Inventors: Osamu Tasaki, Tomoyuki Ogawa, Shinsuke Murano
  • Publication number: 20130318318
    Abstract: Difference information between two snapshots from a first point-in-time snapshot, which has been copied, to an N.sup.th point-in-time snapshot, which constitutes the latest point-in-time snapshot, is acquired to a memory module. The memory module stores two or more pieces of difference information. The two or more pieces of difference information comprise difference information that shows the difference between a first point-in-time snapshot and any snapshot other than the first point-in-time snapshot of N snapshots. Copy difference information, which is information that shows the difference between the first point-in-time snapshot and a specified snapshot from among N snapshots, and which is used in copying the specified snapshot, is created on the basis of the two or more pieces of difference information.
    Type: Application
    Filed: August 1, 2013
    Publication date: November 28, 2013
    Applicant: HITACHI, LTD.
    Inventors: Jun NEMOTO, Atsushi SUTOH, Takaki NAKAMURA, Yoji NAKATANI
  • Publication number: 20130317710
    Abstract: To provide a system for controlling a construction machine, which can be implemented inexpensively, can detect a failure in any of pressure sensors, controllers, an inverter device, and an electric motor for swing, and can secure safety and required workability for an operator. Redundant hydraulic pressure sensors 20, 21 provide input to a first controller 11 for calculating a swing command, and a second controller 22 provided in an inverter device 13 for controlling an electric motor 16 for swing. The second controller 2 detects an abnormality in any of the hydraulic pressure sensors 20, 21 and the first controller 11 by a process for determining the validity of a swing command signal, and allows the swing operation to continue by using a signal from the second hydraulic pressure sensor 21 when determination is made based on the contents of the abnormality that the electric motor 16 for swing can operate normally.
    Type: Application
    Filed: February 16, 2012
    Publication date: November 28, 2013
    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Kohei Sakurai, Kotaro Shimamura, Kazuo Fujishima
  • Publication number: 20130313125
    Abstract: An object of the present invention is to provide a production method for an R—Fe—B based sintered magnet having a plating film excellent in adhesiveness on the surface thereof, by conducting a series of processes of acid cleaning and smut removal as pretreatments of a plating treatment of an R—Fe—B based sintered magnet, and the subsequent plating treatment, effectively without requiring troubles. The production method for an R—Fe—B based sintered magnet having a plating film on the surface thereof of the present invention, as a solution method therefor, is characterized in that a series of processes of acid cleaning and smut removal of a magnet as pretreatments of a plating treatment, and the subsequent plating treatment is conducted consistently with a state, in which the magnet is placed in a barrel made of synthetic resin, and that the smut removal is conducted by ultrasonic cleaning of the magnet with rotating the barrel in water in which the dissolved oxygen amount is set to 0.
    Type: Application
    Filed: January 4, 2012
    Publication date: November 28, 2013
    Applicant: HITACHI METALS, LTD.
    Inventors: Masanao Kamachi, Koshi Yoshimura, Takahiro Isozaki
  • Publication number: 20130313059
    Abstract: A system corresponding to a plurality of different power sources (overhead contact line, power generator driven by engine, and fuel cells) is proposed as a method of using an optimum power supply in an electrified route and a non-electrified route. Provided are: a power conversion circuit that includes AC input ends, the number of which corresponds to the maximum number of phases among a plurality of different AC power supplies, and that converts AC power to a direct current; and switching means for switching a connection state of the AC power supplies and the power conversion circuit, wherein the connection state is switched according to the power supplies.
    Type: Application
    Filed: January 10, 2012
    Publication date: November 28, 2013
    Applicant: HITACHI, LTD.
    Inventors: Satoru Inarida, Koji Agatsuma, Kento Mochizuki
  • Publication number: 20130314817
    Abstract: In a positioning and driving system including a rotating magnetic disk, a magnetic head slider that floats above the surface of the magnetic disk and writes data to and reads data from a track provided on the magnetic disk, an actuator that positions the magnetic head slider in a radial direction of the magnetic disk, and an amplifier that supplies electrical power to the actuator in accordance with the input signal and performs a driving operation, provided is the configuration of an electrothermal actuator driving system that obtains continuous displacement over the entire required operating range with respect to changes in an input voltage by using only one amplifier and that is incorporated into a feedback control system and is suitable for high-speed and high-precision positioning.
    Type: Application
    Filed: March 7, 2011
    Publication date: November 28, 2013
    Applicant: HITACHI, LTD.
    Inventor: Haruaki Otsuki