Patents Assigned to Hitachi
  • Publication number: 20150075461
    Abstract: A variable valve actuation apparatus includes a lock pin slidably disposed in a slide bore formed in a rotor of a vane rotor, a retaining hole formed in an inner face of a sprocket, and a lock-hole structural member fixed and press-fitted into the retaining hole and configured to form the lock hole. The retaining hole is formed at the innermost peripheral side of the sprocket so as to face a central support bore of the sprocket. The inner end face of a large-diameter bore of the retaining hole is formed as a flat surface, whereas the outer end face of a lock-hole structural section of the lock-hole structural member is formed as a planar section. The lock-hole structural member is precisely positioned in its rotation direction by abutment between the flat inner end face and the planar outer end face.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Hiroyuki KATO
  • Publication number: 20150081149
    Abstract: A communications device for a vehicle includes a vehicle-travel-data accumulating unit mounted in the vehicle and configured to accumulate a travel data of the vehicle; a communication unit provided for mobile communications and configured to send a partial data of the vehicle travel data accumulated in the vehicle-travel-data accumulating unit to an external server, and to receive a necessary information from the server; and a communication unit provided for fixed-line communications and configured to send the vehicle travel data accumulated in the vehicle-travel-data accumulating unit to the server when the vehicle is in a stopped state.
    Type: Application
    Filed: March 7, 2013
    Publication date: March 19, 2015
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Kazuya Takahashi, Tatsuyuki Yamamoto
  • Publication number: 20150079663
    Abstract: A dispensing unit that sucks and discharges a blood specimen via a nozzle. A liquid level-measuring unit that measures the liquid level height. A serum volume-estimating unit that estimates the volume of the serum separated in the blood specimen, on the basis of the total blood volume, said total blood volume corresponding to the volume of the blood specimen and having been derived from the liquid level height, and a hematocrit value. A residual volume-estimating unit that calculates the volume of the serum remaining after suction, on the basis of the serum volume estimated by the serum volume-estimating unit and the volume of the serum that is going to be sucked by the dispensing unit. A controller that controls the suction procedure of the dispensing unit so that the estimated residual volume is not less than the desired volume of the serum to be left in the blood collection tube.
    Type: Application
    Filed: April 4, 2013
    Publication date: March 19, 2015
    Applicant: HITACHI ALOKA MEDICAL, LTD.
    Inventors: Hitomi Katagi, Haruki Shimokawabe
  • Publication number: 20150075199
    Abstract: Provided is an air-conditioning/hot-water supply system having high operational efficiency. An internal heat exchanger (15) has: a primary heat transfer pipe (15a) for forming a part of the annular circuit of a refrigerant circuit (10) for air conditioning; and a secondary heat transfer pipe (15b) connected to piping (P) branched from the annular circuit through a pressure reduction device (16). The pressure reduction device (16) reduces the pressure of a first refrigerant flowing therein from the piping (P) depending on an operation mode and causes the first refrigerant, the pressure of which has been reduced, to flow toward the secondary heat transfer pipe (15b), thereby cooling the first refrigerant flowing through the primary heat transfer pipe (15a).
    Type: Application
    Filed: April 25, 2012
    Publication date: March 19, 2015
    Applicant: Hitachi, Ltd.
    Inventors: Masanao Kotani, Yoko Kokugan
  • Publication number: 20150081965
    Abstract: A storage system assigns a real area from a pool to a virtual area in a virtual volume, and stores data into the real area. The pool comprises a plurality of real areas based on a plurality of types of storage devices with different characteristics, and the plurality of real areas are managed as a plurality of tiers depending on the characteristics of the storage devices. Moreover, the storage system moves the data from one tier to another tier in the pool, for each real area.
    Type: Application
    Filed: April 27, 2012
    Publication date: March 19, 2015
    Applicant: HITACHI, LTD.
    Inventors: Takashi Nagao, Nobuhiro Maki, Taiki Miyaji, Masayasu Asano
  • Publication number: 20150082040
    Abstract: With a portal server, a request for information from a terminal of a second user that is an agent for a first user is received, and an encrypted data directed to a terminal of the first user, stored in an encrypted-data memory unit, is re-encrypted using a re-encryption key for the second user, stored in a first encryption-key memory unit, arid is transmitted to the terminal of the second user, with the terminal of the second user, the re-encrypted data received is decrypted using an encryption key for the second user, stored in a second encryption-key memory unit, and time keys specified by the terminal of the first user, related to a time-period during which browsing of the information is permitted.
    Type: Application
    Filed: June 13, 2014
    Publication date: March 19, 2015
    Applicant: Hitachi, Ltd.
    Inventors: KOSUKE ANZAI, Hisayoshi Sato, Yoshiaki Isobe, Suguru Iwasaki
  • Publication number: 20150078944
    Abstract: A variable displacement vane pump is provided. This pump includes a pump housing including, a driving shaft, a rotor, a plurality of vanes, a cam support surface, a cam ring, an intake port formed at the pump housing, a discharge port formed at the pump housing, and a cam ring control mechanism disposed at the pump housing and configured to control an eccentric amount of the cam ring with respect to the rotor. The cam support surface is formed in such a manner that a shortest distance between the cam support surface and a reference line decreases from a second confining region side toward a first confining region side, and the cam ring is formed in such a manner that a cam profile radius change rate decreases first and then increases again on the second confining region side when eccentric amount of the cam ring is maximized.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Applicant: HITACHI AUTOMOTIVE SYSTEMS STEERING, LTD.
    Inventors: Norikazu KUMASAKA, Masaaki IIJIMA, Yukio UCHIDA, Satoshi MURAMATSU
  • Publication number: 20150080728
    Abstract: In an ultrasonic diagnostic apparatus, a scan converter module generates display frame data from received frame data using a conversation table adapted to the specific display resolution of a display device. Received frame data is stored in a first frame memory, and display frame data is stored in a second frame memory. A control unit selects the conversion table corresponding to the specific display resolution of the display device from among a group of conversion tables. An address converter generates an address set corresponding to a display address using the selected conversion table. Interpolation is then performed based on the echo data specified by this.
    Type: Application
    Filed: November 8, 2012
    Publication date: March 19, 2015
    Applicants: HITACHI ALOKA MEDICAL, LTD., HITACHI ALOKA MEDICAL, LTD.
    Inventor: Takaya Uno
  • Publication number: 20150081263
    Abstract: According to the present invention, an accurate simulation result is obtained and computation time is shortened, by parallel computation of a production simulation executed by a plurality of processors. A target product line is divided into a plurality of blocks, and event groups which can be computed in parallel while acquiring accurate simulation results are formed based on the order of execution dates and times of the events in the divided block. First, a step effect relationship which shows whether or not an event computation process in a certain step affects an event computation process in another step is acquired, based on a production line configuration such as a step order and resource sharing relationship between the steps. Next, the production line is divided into a plurality of blocks which do not affect each other by putting the steps that affect one another into a block.
    Type: Application
    Filed: April 15, 2013
    Publication date: March 19, 2015
    Applicant: Hitachi, Ltd.
    Inventors: Satoshi Nagahara, Hisaya Ishibashi
  • Publication number: 20150076345
    Abstract: A specimen holder and method for controlling the same, which can mount and fasten a specimen to allow observation thereof by joining a body and a stand of the specimen holder together. The specimen holder includes: a body; a specimen mounting part formed at an end of the body for fixing a specimen; elasticity means located inside the body; and a stand detachably joined with the body. The stand includes: a base part; and a joining part protrudingly formed on the upper face of the base part and having a through hole to which at least a part of the specimen mounting part is inserted. The specimen mounting part includes: a first grip part located at an end portion of the specimen mounting part for fixing one side of the specimen; and a second grip part movably connected with the elasticity means for fixing the other side of the specimen.
    Type: Application
    Filed: October 21, 2013
    Publication date: March 19, 2015
    Applicant: Hitachi High-Technologies Korea Co., Ltd.
    Inventor: Heyoung Cheol Heyoung
  • Publication number: 20150075477
    Abstract: A balancer device for an internal combustion engine includes upper and lower housings made of aluminum alloy. The upper housing includes a leg part fixed to the engine. The lower housing is coupled to the upper housing by tightening bolts. A pair of balancer shafts are rotatably supported by the upper and lower housings. A positioning pin is disposed at a distal end portion of the leg part for positioning the upper housing with respect to the engine by positional correspondence to a positioning hole of the engine when the tightening bolts are tightened. The leg part is inclined outwardly with respect to a body of the upper housing such that a distal end of the positioning pin is located outside of a proximal end of the leg part with respect to the body of the upper housing when the tightening bolts are loosened.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 19, 2015
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Masaharu KITAMURA
  • Patent number: 8981790
    Abstract: A noise current passing through a substrate on which an electronic component is mounted is suppressed in a housing, to provide a malfunction of an electronic device. A substrate (103) on which an electronic component is mounted is secured to a housing (102) by a metal spacer (108) and a screw (104). A noise control member (100) mainly composed of an insulation substance is disposed between the metal spacer (108) and the substrate (103). A first conductive film is formed on the metal spacer-side of the noise control member (100), and a second conductive film is formed on the substrate-side of the noise control member (100). A resistance member (101) is disposed between the first conductive film and the second conductive film. A noise current introduced from the housing to the substrate can be suppressed by the resistance member.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: March 17, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Nakamura, Takashi Suga, Yutaka Uematsu
  • Patent number: 8981765
    Abstract: It is an object of the present invention to provide a motor function analyzing apparatus which simplifies a calibration measurement necessary before measuring a finger tapping motion, and which is capable of evaluating a motor function highly precisely. The present invention provides a motor function analyzing apparatus which simplifies a calibration measurement necessary before measuring a finger tapping motion, and which is capable of evaluating a motor function highly precisely by using a calibration point unique to each apparatus and a calibration point unique to each subject.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: March 17, 2015
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yuko Sano, Akihiko Kandori, Tsuyoshi Miyashita, Katsuya Morohoshi, Kouichi Ishizuka
  • Patent number: 8984556
    Abstract: For executing a graphic display without generating the sense of incompatibility in a view, within a receiver apparatus enabling 3D display, and also for an improvement of usability thereof, a receiver apparatus or a reproducing apparatus for obtaining digital information including information of whether a cubic display can be made or not, together with video information, comprises a controller portion for producing graphic data for use of display added with a parallax thereto, wherein the graphic data without generating a sense of incompatibility to a user by changing all or a part of the graphic data for use of display into data for use of cubic display, when producing the data fitting to a condition of a cubic display of an output video. In particular, when producing data of electronic program table, the cubic display is executed, partially, fitting to an object, and thereby increasing usability for a user.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: March 17, 2015
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Takashi Kanemaru, Hidenori Sakaniwa, Toshiyuki Nemoto
  • Patent number: 8983709
    Abstract: Provided is an autonomous travel system having an operation management unit including a map database with a combination of topological region maps, on which the range of travel of a vehicle is expressed as points and lines, and metric region maps, on which the travel range is expressed on planar maps; a vehicle position management unit for managing the position of the vehicle; and a vehicle travel planning unit for planning vehicle travel, which, if the vehicle is present near the boundary of a map, blocks the map boundary so that other vehicles will not advance into another map. The operation management unit is provided with a blockage setting unit for dividing a boundary section of a map into a plurality of regions and releasing the blockage of the boundary of a divided region in which no vehicles are present in front of the vehicle in the direction of travel.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: March 17, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Mikio Bando, Yukihiro Kawamata
  • Patent number: 8982250
    Abstract: An image processing apparatus is provided which minimizes reduction in S/N ratio and deterioration in resolution feeling at the lens periphery when the peripheral light amount drop correction of the lens is performed. An image processing LSI to perform the peripheral light amount drop correction of the imaging lens includes a space-direction noise removal correction part and a time-direction noise removal correction part. As the distance from the lens center position increases, the space-direction noise removal correction part reduces the noise reduction correction intensity to the image region to which the light amount drop correction gain is added in each image. As the distance from the lens center increases, the time-direction noise removal correction part increases the noise removal correction intensity to the image region to which the light amount drop correction gain is added in each image.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: March 17, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Makoto Asuka, Hiroyuki Miyahara
  • Patent number: 8981722
    Abstract: A cell control device according to the present invention includes: a discharge circuit that discharges each unit cell selected by the first switches among a plurality of unit cells connected in series; a charging circuit that charges each unit cell selected by the second switches among the unit cells connected in series, and; a voltage detection unit that detects a voltage of each unit cell via voltage detection lines respectively connected to positive and negative electrodes of the unit cells; an oscillator that irradiates high frequency electromagnetic radiation upon the voltage detection lines; and a charging control unit that controls switching of the first switches, thereby performing discharge of the each unit cell, and a charging control unit that controls switching of the second switches, thereby performing charging of the unit cells, based on voltages of the unit cells that are detected by the voltage detection unit.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: March 17, 2015
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hikaru Miura, Akihiko Kudo
  • Patent number: 8983025
    Abstract: An X-ray CT apparatus is configured capable of properly calculating a radiation dosed amount more approximating to an actually exposed radiation dose that includes scattering rays of an examined object from data measured at the scanning time. A function or table showing a relationship between data obtained on the basis of the measured data of the object detected by an X-ray detector at the scanning time and the radiation dosed amount is stored in advance; and the X-ray CT apparatus calculates the radiation dosed amount of the object in accordance with the data obtained on the function or table showing the relationship between the data obtained on the basis of the measured data of the object stored in advance and the radiation dosed amount.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: March 17, 2015
    Assignee: Hitachi Medical Corporation
    Inventors: Koichi Hirokawa, Yoshiaki Sugaya, Toshiyuki Irie
  • Patent number: 8984248
    Abstract: A second storage maps a migration source volume to a virtual volume of a migration destination volume according to storage virtualization technology. A host system including a host switches an access path from an access path to the migration source volume to an access path to the migration destination volume. The second storage executes copy processing of migrating, from the migration source volume to the migration destination volume, data in an assigned area of a virtual volume according to thin provisioning of the migration source volume based on the information contained in the first thin provisioning information in the first storage, and copying that data from the migration destination volume to a virtual volume according to thin provisioning of a copy destination volume in the second storage. The second storage associates the virtual volume of the copy destination volume with the migration destination volume in substitute for the original virtual volume.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: March 17, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Noboru Morishita, Hideo Saito, Yoshiaki Eguchi, Masayuki Yamamoto, Akira Yamamoto
  • Patent number: D724604
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: March 17, 2015
    Assignee: Hitachi Construction Machinery Co., Ltd
    Inventors: Hidefumi Ishimoto, Yoshihiro Inanobe, Yoichi Kowatari, Eitaro Ito, Kenta Tsukijishin, Takaaki Ishii