Patents Assigned to Hitachi
  • Patent number: 8827459
    Abstract: An optical unit includes a light source that emits light to be projected onto a screen, one or a plurality of optical elements that controls a spread of a beam of light from the light source to the screen, a combining element that combines the light emitted from the light source, and a scanning element. The light source outputs an optical beam that will generate an elliptically shaped beam spot on the screen, the beam spot having a major axis substantially perpendicular to a scanning direction, and the light source is driven with pulse width modulation (PWM) so that one driven pulse corresponds to one beam spot on the screen.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: September 9, 2014
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Mayumi Nagayoshi, Satoshi Ouchi, Tadayoshi Kosaka, Tomoki Kobori, Yoshiho Seo
  • Patent number: 8831873
    Abstract: Provided is a navigation technique for aiding a user to develop a plan for traveling around a plurality of destinations. The navigation device causes a display unit to display a first display area and a second display area. The first display area displays icon information for specifying a facility and positional information thereof. The second display area displays a time line of a predetermined period. When the user disposes a plurality of pieces of icon information on the time line, the navigation device retrieves a route for traveling around the disposed facilities in order. As to icon information of a facility at which the user cannot arrive at the time corresponding to a position where the icon information is disposed, the navigation device indicates that the icon information is inappropriate.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: September 9, 2014
    Assignees: Clarion Co., Ltd., Hitachi, Ltd.
    Inventors: Shotaro Tamayama, Takaaki Ishii, Kyoko Okoshi, Tomohiro Harada
  • Patent number: 8830781
    Abstract: A storage apparatus writes data to a storage drive or reads data from a storage drive in response to an I/O request sent from a server. The storage apparatus includes a plurality of AC-DC power supplies supplying the storage drive with drive power is provided with a plurality of power supply paths provided for the respective AC-DC power supplies. A plurality of gate units are provided to the respective power supply paths and configured to stop supplying drive power to the storage drive through the corresponding power supply path when detecting voltage abnormality in the drive power supplied from the AC-DC power supply to the storage drive. The power supply paths allow each of the storage drives belonging to a same RAID group to receive the supply of the drive power from the AC-DC power supplies through different power supply paths, respectively.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 9, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Ryohei Oguro, Yosuke Tsuyuki
  • Patent number: 8828257
    Abstract: In a plasma processing apparatus including a processing chamber in a vacuum container to form plasma in the processing chamber in which pressure is reduced, a sample stage in lower part of inside of the processing chamber and having an upper surface on which a wafer to be processed by plasma is put, a plurality of pins in the sample stage to be moved in vertical direction so that the pins abut against rear side of the wafer to move the wafer up and down over the upper surface of the sample stage, and a plurality of openings formed in the upper surface of the sample stage so that the pins are moved in the openings, gas is fed from supply ports communicating with the openings into the processing chamber through the openings when the wafer is not put on the upper surface of the sample stage.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: September 9, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hiroho Kitada, Kazunori Nakamoto, Yosuke Sakai
  • Patent number: 8832397
    Abstract: Availability of an information system including a storage apparatus and a host computer is improved. A host system includes a first storage apparatus provided with a first volume for storing data, and a second storage apparatus for storing the data sent from the first storage apparatus. In case of a failure occurring in the first storage apparatus, the host sends the data to be sent to the first storage apparatus to the second storage apparatus.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: September 9, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Takashige Iwamura, Kenta Ninose, Yoshiaki Eguchi, Yasuo Watanabe, Hisao Homma, Yasutomo Yamamoto
  • Patent number: 8831306
    Abstract: At each of mutually different multiple focal positions, focal adjustment parameter values are obtained from images of standard particles made of the same substance. Each focal adjustment parameter value is figured out as any one of the ratio between the density value around the center of the standard particle image and the density value around the outline, the difference therebetween, and the density value around the center. The in-focus position is adjusted on the basis of the relationship between the obtained focal adjustment parameter values and the focal positions. Moreover, on the basis of the relationship between the focal adjustment parameter values and the focal positions, the parameter values are converted into focal positions, and the focal positions and dispersion thereof are used to check the displacement of the in-focus position and the thickness of the sample liquid.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: September 9, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Chihiro Manri, Norio Oowada, Satoshi Mitsuyama
  • Patent number: 8831441
    Abstract: To reduce PAPR in an optical OFDM communication system, light is phase-modulated by a base-band OFDM signal which is the output of a transmission signal processing unit 100 provided in an inner section of an optical receiver. When optical communication is implemented with the light as signal light, PAPR of low level of almost 0 dB can be achieved at places in an inner section of an optical fiber wherein the optical power is large. The signal light is propagated along an optical fiber which is a transmission path, the light is passed through a delay interferometer, and converted to electrical signals by two optical receivers. Each of the two electrical signals is converted to a subcarrier by FFT signal processing and an AD converter disposed in an inner section of the optical receivers, then, subcarriers having the same frequency are subtracted and decoded, and data is regenerated.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: September 9, 2014
    Assignee: Hitachi, Ltd.
    Inventor: Shinya Sasaki
  • Patent number: 8832396
    Abstract: A controller for the storage apparatus: creates a second logical volume in a storage area provided by one or more storage devices; stores management information of a snapshot of a first logical volume, which is to be provided to a host computer, in the second logical volume; and reads the management information of a necessary snapshot from the second logical volume to a memory when needed, executes processing using the read management information, and returns the management information, which becomes no longer necessary, from the memory to the second logical volume. When reading the management information of the necessary snapshot from the second logical volume to the memory when needed, the controller changes the number of generations and address range of the snapshot of the management information to be read to the memory according to a generation and address of the snapshot whose management information is required.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: September 9, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Masayoshi Ohara, Koji Nagata, Kosuke Sakai
  • Patent number: 8832380
    Abstract: An object of the present invention is to provide a storage system which is shared by a plurality of application programs, wherein optimum performance tuning for a cache memory can be performed for each of the individual application programs. The storage system of the present invention comprises a storage device which provides a plurality of logical volumes which can be accessed from a plurality of application programs, a controller for controlling input and output of data to and from the logical volumes in response to input/output requests from the plurality of application programs, and a cache memory for temporarily storing data input to and output from the logical volume, wherein the cache memory is logically divided into a plurality of partitions which are exclusively assigned to the plurality of logical volumes respectively.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: September 9, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Atushi Ishikawa, Yuko Matsui
  • Patent number: 8831892
    Abstract: A chromatograph analyzing device for automatically executing a base line setting process on an unseparated peak using preset base line conditions. The chromatograph analyzing device includes a separation unit for separating a component included in a sample, and a data processing device for identifying the component of the sample and the quantity of the component in the sample by using a chromatogram obtained from the separation.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: September 9, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Osamu Watabe, Masahito Ito
  • Patent number: 8831317
    Abstract: Blood streams different in direction can be selectively depicted, and a blood vessel image (MRA image) which has an excellent blood vessel contrast and in which a background signal is suppressed is obtained. Therefore, the present invention sets a pre-saturation area (pre-saturation area) in an area containing at least a part of an imaging area and performs imaging in a blood vessel imaging operation using a pre-saturation pulse for pre-exciting spins.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: September 9, 2014
    Assignee: Hitachi Medical Corporation
    Inventors: Hideki Kumai, Taeko Ito
  • Patent number: 8830994
    Abstract: A network system includes a plurality of lower switching hubs, and upper switching hubs connected to each of the lower switching hubs, to relay a normal frame to be transmitted and received between the lower switching hubs. Each of the lower switching hubs includes a lower switch configuring portion for configuring a first link aggregation group for all ports connected to the upper switching hub, and transmitting a first control frame containing its own identifier from all the ports connected to the one or more upper switching hubs. Each of the upper switching hubs includes an upper switch configuring portion for configuring a second link aggregation group for ports connected to a same lower switching hub, based on the first control frames received from the lower switching hubs, and transmitting a second control frame containing its own identifier from the ports configured as the second link aggregation group.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: September 9, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventor: Tomoyoshi Tatsumi
  • Patent number: 8831595
    Abstract: In a wireless communication system including a plurality of base station controllers different in wireless communication method, each of which accommodates a plurality of base stations, a home agent apparatus connected to the base station controllers, and a monitoring apparatus connected to each of the base stations and the base station controllers, the monitoring apparatus acquires communication quality information of each wireless terminal from each of the base stations, and selects a wireless base station having a wireless communication path suitable for the wireless terminal from among wireless base stations different in communication method to which the wireless terminal is connected.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: September 9, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Tsutomu Uchida, Seishi Hanaoka, Masashi Yano, Naruhito Nakahara
  • Patent number: 8828607
    Abstract: It is an object to provide a cathode active material and a cathode which can attain a lithium ion secondary battery with high capacity and high security, and further to provide the lithium ion secondary battery with high capacity and high security. According to the present invention, the cathode active material is represented by the following composition formula: Li1.1+xNiaM1bM2cO2 wherein M1 represents Co, or Co and Mn; M2 represents Mo, W or Nb; ?0.07?x?0.1; 0.6?a?0.9; 0.05?b?0.38; and 0.02?c?0.06.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: September 9, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Hiroaki Konishi, Masanori Yoshikawa
  • Patent number: 8828141
    Abstract: A substrate processing apparatus of the present invention comprises: a processing chamber for storing and processing substrates stacked in multiple stages in horizontal posture; a processing gas supply unit for supplying two or more types of the processing gases to the inside of the processing chamber; an inactive gas supply unit for supplying an inactive gas to the inside of the processing chamber; and an exhaust unit for exhausting an atmosphere of the inside of the processing chamber, wherein the processing gas supply unit has at least two processing gas supply nozzles which extend running along an inner wall of the processing chamber in the stacking direction of the substrates and supply the processing gas to the inside of the processing chamber, and the inactive gas supply unit has a pair of inactive gas supply nozzles which are provided so as to extend running along the inner wall of the processing chamber in the stacking direction of the substrates and so as to sandwich at least one processing gas supp
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: September 9, 2014
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Masanori Sakai, Yuji Takebayashi, Tsutomu Kato, Shinya Sasaki, Hirohisa Yamazaki
  • Patent number: 8828184
    Abstract: A plasma processing apparatus includes a plasma processing chamber, a process monitor which monitors a condition in the plasma processing chamber, an actuator which controls a parameter constituting a plasma processing condition, N+1 correction amount calculating units which calculate a correction amount of a manipulated variable on the basis of a difference between a process monitor value monitored by the process monitor and a desired value of the process monitor and a correlation between the process monitor value and a manipulated variable, which is the parameter, the correlation having been acquired in advance, and N manipulated variable adding units that add a manipulated variable having a priority level next to an N-th manipulated variable. The N-th manipulated variable adding unit defines a correction amount calculated by the N+1-th correction amount calculating unit as the correction amount of an N+1-th manipulated variable.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: September 9, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Akira Kagoshima, Daisuke Shiraishi, Yuji Nagatani
  • Patent number: 8832334
    Abstract: According to an aspect of the invention, a computer comprises a memory; and a processor operable to manage a plurality of path groups, each of which includes a plurality of logical paths associated with a host computer, wherein each logical path of the plurality of logical paths connects the host computer to a logical volume of one or more logical volumes in one or more storage systems. The processor is operable to manage a priority of each path group of the plurality of path groups, and to use a logical path of a first path group instead of a logical path of a second path group for I/O (input/output) usage between the host computer and the one or more storage systems, representing a migration of I/O usage from the second path group to the first path group, based on at least the priorities of the first and second path groups.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: September 9, 2014
    Assignee: Hitachi, Ltd.
    Inventor: Hideki Okita
  • Patent number: 8828584
    Abstract: A lithium-ion rechargeable battery module having a plurality of lithium-ion battery cells, arranged that battery cells located at an high temperature portion of the module are electrically connected in parallel with battery cells located at a low temperature portion of the module. The battery cells at the high temperature portion have a higher electric resistance at 20° C. and a better high-temperature storage characteristic at 50° C. than those of the battery cells located at the low temperature portion.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: September 9, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Akira Gunji, Shin Takahashi, Hiroshi Iwasawa, Shin Yamauchi, Takefumi Okumura
  • Patent number: 8827686
    Abstract: The present invention provides an imprinting apparatus or an imprint transfer method in which uniformity of curing quality by UV light is maintained and a uniform application thickness of a UV curable resin is achieved, even if glass is contaminated with dust and/or smudges or has a flaw.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: September 9, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Toshimitsu Shiraishi, Naoaki Yamashita, Masashi Aoki
  • Patent number: 8829717
    Abstract: A battery control device for a battery module includes a plurality of integrated circuits. Each integrated circuit includes: a constant voltage circuit that lowers a total voltage of a battery cell group corresponding to the integrated circuit to an integrated circuit internal voltage; a signal generation circuit that generates, based upon a first signal provided by a higher-order control circuit, a second signal assuming a wave height value different from a wave height value of the first signal and outputs the second signal; and a startup circuit that includes a first comparator assuming a first decision-making threshold value corresponding to the first signal and a second comparator assuming a second decision-making threshold value corresponding to the second signal, and starts up the constant voltage circuit in response to a change in an output from at least either the first comparator or the second comparator.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: September 9, 2014
    Assignee: Hitachi Vehicle Energy, Ltd.
    Inventors: Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura, Tatsumi Yamauchi, Kenji Kubo, Yoshinori Aoshima