Patents Assigned to Hitachi, Ltd.
  • Publication number: 20190149423
    Abstract: The storage apparatus includes a control unit that manages a storage area allocated to the host computer. The control unit assigns an identifier to the host computer that accesses the storage area, and assigns the identifier to the first computer's first interface that accesses the storage area, assigns a second port identifier of a second interface of a storage device that communicates with a host computer to a first port identifier of the first interface by accepting a port identifier and sets a logical path, storing the port identifier and the second port identifier in association with each other in the host computer connection information, assigning the identifier of the storage area to the identifier of the host computer, associating the identifier of the storage computer with the identifier of the host computer, and storing the storage area allocation information.
    Type: Application
    Filed: September 4, 2018
    Publication date: May 16, 2019
    Applicant: HITACHI, LTD.
    Inventors: Keisuke OKAMURA, Wataru OKADA
  • Publication number: 20190148946
    Abstract: To provide an energy management system that effectively uses a solar power generation system and a solar heat collection system to thereby make it possible to maximize a cost merit of a user. An energy management system related to the present invention includes: a solar power generation system that includes a solar panel to generate electric power on the basis of a solar light; a solar heat collection system that collects solar heat based on the solar light; and a control part that determines whether or not heat can be stored by the solar heat collection system from output characteristics of the solar power generation system and that drives the solar heat collection system in a case where the heat can be stored.
    Type: Application
    Filed: October 15, 2018
    Publication date: May 16, 2019
    Applicant: HITACHI, LTD.
    Inventors: Naoki YOSHIMOTO, Yuichi SATSU
  • Publication number: 20190146468
    Abstract: A manipulation candidate classification unit provided in this operation assistance device classifies manipulation logs associated with a plurality of events stored in a past case database, as manipulation candidates, on the basis of measured value feature quantity tolerance ranges, and groups the classified manipulation candidates and the measured value feature quantity tolerance ranges together to create manipulation candidate groups. A manipulation candidate search unit searches a manipulation candidate database for a manipulation candidate group associated with a feature quantity that is associated with a past event and that is close to a feature quantity associated with a new event, and outputs the found manipulation candidate group to an output unit.
    Type: Application
    Filed: June 30, 2017
    Publication date: May 16, 2019
    Applicant: Hitachi, Ltd.
    Inventors: Nao SAITO, Kenta KIRIHARA, Masahiro YATSU
  • Publication number: 20190143146
    Abstract: A template matching is performed on two fluoroscopic images by using a template image prepared in advance and a position corresponding to a high matching score is listed as a candidate for the position of a marker 29. From two lists of the candidates of the position of the marker 29, the lengths of common vertical lines for all combinations are calculated. Then, the position of the marker 29 is detected based on the matching score and the common vertical line. Then, based on the detected position of the marker 29, an amount of a proton beam to be irradiated to a target is controlled. Therefore, a tracking target can be accurately detected even when the conditions for X-ray fluoroscopy is severe, e.g., a thick object.
    Type: Application
    Filed: May 11, 2017
    Publication date: May 16, 2019
    Applicants: HITACHI, LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Yusuke FUJII, Naoki MIYAMOTO, Kikuo UMEGAKI, Shinichi SHIMIZU, Toru UMEKAWA, Takahiro YAMADA
  • Patent number: 10288117
    Abstract: To provide a motor system that can control the position of a control object in multiple directions while suppressing the number of required switching elements. A motor system includes: a power conversion device including first, second, and third up-down arms each including two switching elements connected in series; a control object; and a first load including a magnetic pole tooth facing the control object, and a winding wound around the magnetic pole tooth. The motor system includes a second load including two magnetic pole teeth facing each other in a second direction with the control object therebetween, and a winding wound around one or both of the magnetic pole teeth. The power conversion device provides a force with respect to a first direction to the control object through an output to the first load, and provides a force with respect to the second direction to the control object through an output to the second load.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: May 14, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Takahiro Suzuki, Yasuaki Aoyama, Shuhei Nagata, Masaki Koyama
  • Patent number: 10289564
    Abstract: A computer on which OSs run is coupled to the storage apparatus, the OSs include a first OS controlling access to the storage apparatus and a second OS generating a virtual computer. A logically divided computer resources are allocated to the first OS and the second OS respectively. A third OS for executing an application runs on the virtual computer. The second OS has a shared region management part managing a shared region that is a memory region used for communication between the application and the first OS. The third operating system has an agent requesting the second operating system to secure the shared region based on a request from the application and mapping the secured shared region to a guest virtual address space.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 14, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Yukari Hatta, Norimitsu Hayakawa, Takao Totsuka, Toshiomi Moriki, Satoshi Kinugawa
  • Patent number: 10291513
    Abstract: Concepts and technologies are disclosed herein for a topology aware load balancing engine. A processor that executes a load balancing engine can receive a request for a load balancing plan for an application. The processor can obtain network topology data that describes elements of a data center and links associated with the elements. The processor can obtain an application flow graph associated with the application and create a load balancing plan to use in balancing traffic associated with the application. The processor can create the load balancing plan to use in balancing traffic associated with the application and distribute commands to the data center to balance traffic over the links.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: May 14, 2019
    Assignees: AT&T Intellectual Property I, L.P., Hitachi, Ltd.
    Inventors: Matti A. Hiltunen, Richard D. Schlichting, Kaustubh Joshi, Hiroya Matsuba
  • Patent number: 10291034
    Abstract: A method and device for operating a power system, and a rechargeable-battery management device that extracts maximum performance from rechargeable batteries and uses the batteries evenly while taking into consideration cost and the operation of the batteries are provided. According to the method for operating a power system provided with a plurality of rechargeable-battery devices and a plurality of electric generators, the amount of power that a rechargeable battery available during a scheduled time period on a scheduled date will be able to supply is determined, an economic-dispatch calculation including the determined amount of power that the aforementioned rechargeable battery will be able to supply is performed for the power system, and the rechargeable battery is used to supply power during the scheduled time period on the scheduled date.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: May 14, 2019
    Assignees: Hitachi, Ltd., Kabushiki Kaisha Toshiba
    Inventors: Yasutaka Kimura, Mitsuo Tsurugai, Toshiyuki Fujikawa, Hyogo Takami, Tomoyuki Nakamura, Taichi Isogai
  • Patent number: 10290099
    Abstract: There is provided an image processing device capable of generating a more accurate analysis image by extracting a region, which exists at a boundary between different substances and has a pixel value that is non-uniform and continuously changes, from volume data. The image processing device acquires the volume data of a region which includes a large intestine, sets a plurality of starting points of region expansion in a boundary region between air and a residue in the large intestine, sets a condition of an expandable range of a width according to a gradient of a pixel value of each of the starting points, performs a region expansion process from each of the starting points according to the set condition, and generates the analysis image based on the result of the region expansion process.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: May 14, 2019
    Assignee: HITACHI, LTD.
    Inventors: Shino Tanaka, Takashi Shirahata, Hiroki Taniguchi
  • Patent number: 10290704
    Abstract: An object of the present invention is to provide high-performance highly-reliable power semiconductor device.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: May 14, 2019
    Assignee: HITACHI, LTD.
    Inventors: Naoki Tega, Naoki Watanabe, Shintaroh Sato
  • Publication number: 20190137527
    Abstract: A center processor generates multiple instruction strings from sequence data based on a conversion table. The multiple instruction strings are transmitted to multiple local units via an internal network. Each of the local units includes a local processor and an I/O board. Layers from an internal layer to an input/output layer form a common platform.
    Type: Application
    Filed: April 20, 2017
    Publication date: May 9, 2019
    Applicant: Hitachi, Ltd.
    Inventors: Nozomu KOSAKA, Toshiya SAKAMAKI, Yukiko SAGAWA
  • Publication number: 20190138227
    Abstract: A storage system includes a flash storage in which a plurality of flash chips are accommodated and a storage controller that reads/writes data from and on the flash storage in response to a request from a high-order device, the flash chip capable of changing a mode of a cell of the flash chip to a first mode and a second mode in which an amount of storable information is less but a lifetime is longer than in the first mode, and a control method of the storage system is provided. The storage system includes: a prediction unit; a determination unit; and a mode change.
    Type: Application
    Filed: August 31, 2018
    Publication date: May 9, 2019
    Applicant: HITACHI, LTD.
    Inventors: Akira YAMAMOTO, Akifumi SUZUKI
  • Publication number: 20190138358
    Abstract: A computer system includes a plurality of task processing nodes capable of executing tasks and a task management node which determines which a task processing node to allocate a new task and each task processing nodes includes a memory capable of caching data to be used by an allocation task which is a task allocated to the task processing node. The task management node stores task allocation history information including a correspondence relationship between the allocation task and the respective task processing node A CPU of the task management node determines a degree of similarity between the new task and the allocated task, determines the task processing node to which the new task should be allocated from the task processing nodes included in the task allocation history information based on the degree of similarity, and allocates the new task.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 9, 2019
    Applicant: HITACHI, LTD.
    Inventors: Kazumasa MATSUBARA, Mitsuo HAYASAKA
  • Publication number: 20190138804
    Abstract: A computer that extracts an attribute which is a text string contained in an predetermined examination target document stores template information for managing a plurality of templates in which a type of attribute is defined, executes a text recognition process on image data of the document, extracts an attribute corresponding to the type of attribute using a result of the text recognition process and the plurality of templates, selects a template based on the extracted attribute, generates output information that includes the attribute extracted using the selected template and is used for the examination; determines a type of confirmation operation performed on the output information, before the examination, based on a comparison result between an evaluation value indicating credibility of the output information and a threshold, and corrects the determined type of confirmation operation based on the text string contained in the document.
    Type: Application
    Filed: August 30, 2018
    Publication date: May 9, 2019
    Applicant: HITACHI, LTD.
    Inventors: Yasufumi Suzuki, Hiroshi Shinjo, Ryosuke Odate, Masahiro Motobayashi
  • Patent number: 10282095
    Abstract: Proposed are a method and a device for managing the performance of a storage apparatus which uses a combination of different types of drive devices which mutually have different limits as its storage medium so that measures can be systematically taken against problems that may arise in the future as a result of the drive devices reaching their limit. Based on a premise of being able to tier two or more types of storage mediums which have mutually different rewriting limits and response performances and migrate data between the respective tiers according to the response performance, a performance management device estimates a decrement of a storage capacity pursuant to each of the two or more types of storage mediums reaching a rewriting limit, estimates a performance influence on the virtual volume and a timing of occurrence, and displays information related to the estimated performance influence and the timing of occurrence.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: May 7, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Kazuya Sato, Hideo Ohata, Hironobu Sakata, Katsutaka Inoue
  • Patent number: 10280901
    Abstract: A wind power generation system comprising: a wind power generation equipment having a rotor which is operative to convert energy of received wind to rotational energy, a rotatable nacelle which supports the rotor, a tower which supports the rotatable nacelle, a floating body which supports the tower and at least a part of the floating body is positioned above the surface of the sea, a fixing member which is installed or fixed on the sea bed, a mooring member which couples the floating body and the fixing member, wherein the mooring member is coupled to the floating body at place upward of the center of gravity of the floating body and the wind power generation equipment, and the floating body is practically supported by one fixing member.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: May 7, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuru Saeki, Takashi Shiraishi, Junichi Sugino
  • Patent number: 10283961
    Abstract: An object of the invention is to economically operate a voltage reactive power control device by reducing a transmission loss and reducing the number of tapping operations affecting the life span of a facility. Provided is a voltage reactive power control device including a central monitoring device that includes a loss prediction information output unit calculating a bus voltage on the basis of a generation probability of a power generation pattern, and outputting loss prediction information associated with the bus voltage from system configuration information, and includes a control amount determination unit determining a control pattern of the voltage reactive power control device from the loss prediction information. According to the invention, it is possible to economically operate a voltage reactive power control device by reducing a transmission loss and reducing the number of tapping operations affecting the life span of a facility.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: May 7, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Shimakura, Yoshikazu Ishii
  • Patent number: 10283460
    Abstract: A technology is proposed in which the improvement of the capability of a semiconductor device can be realized by satisfying both reduction of leakage currents and suppression of the degradation of the conductive characteristic of the semiconductor device. An electric field relaxation region ERR is formed in an outer edge region on the outside of a mesa structure MS. In addition, an electric charge implantation region EIR formed on a drift layer EPI, a resistance reduction region RR formed on the electric charge implantation region EIR, and a leakage reduction region LR formed at a sidewall portion of the mesa structure MS are formed in the mesa structure MS. In this case, the impurity concentration of the leakage reduction region LR is set larger than the impurity concentration of the electric field relaxation region ERR, and is set smaller than the impurity concentration of the resistance reduction region RR.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 7, 2019
    Assignee: HITACHI, LTD.
    Inventor: Yuan Bu
  • Patent number: 10282380
    Abstract: In a data retrieval/distribution apparatus which retrieves designated information from the collected data in accordance with a retrieval/distribution request sent from a data retrieval/distribution client, and sends a retrieval result to the data retrieval/distribution client, the data retrieval/distribution client sends, to the data retrieval/distribution server, the retrieval/distribution request including a first retrieval condition using a virtual data conversion definition, which is a virtualization of data conversion definitions as a definition for converting the collected data into a distribution format, a processing unit of the data retrieval/distribution apparatus generates a second retrieval condition using each of the data conversion definitions from the first retrieval condition, executes retrieval processing according to the generated second retrieval condition, and sends a retrieval result of the retrieval processing to the data retrieval/distribution client as a retrieval result according to th
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: May 7, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhiro Matsuya, Naoki Ikawa, Atsushi Hirata
  • Patent number: 10282136
    Abstract: A capacity control module which manages a physical storage area provided by each of storage devices in a cluster by dividing the physical storage area into a physical storage area having a predetermined size, in a plurality of storage nodes configuring a storage system, and, a storage control module which receives an I/O request from a higher-level device are provided, two storage control modules, which are arranged in different storage nodes and configure a redundancy configuration, are managed as a storage control module pair, the capacity control module preferentially allocates each of the physical storage areas in the vicinity of an arrangement destination of each of the storage control modules configuring the storage control module pair, to the storage control module pair, and storage data is read from or is written on the physical storage area, according to a command applied from the storage control module.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: May 7, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Shintaro Ito, Yuko Matsui, Masakuni Agetsuma, Hideo Saito, Takeru Chiba, Takahiro Yamamoto