Patents Assigned to Hitachi, Ltd.
  • Patent number: 7456415
    Abstract: A ridge filter or a range modulation wheel (RMW) is formed to have a shape corresponding to an affected part in the patient body. A plurality of spread-out Bragg peaks with the same dose or different doses are formed in the affected part by executing beam-on/off control of the RMW, beam current control with rotation of the RMW, intensity modulation control, or scanning irradiation. As an alternative, a spread-out Bragg peak containing a portion with a different dose is formed. A treatment time is cut.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Masaki Yanagisawa, Kazuo Hiramoto, Hiroshi Akiyama
  • Patent number: 7457929
    Abstract: It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more auxiliary storage systems 100B, 100C are connected to a primary storage system 100A connected to a host device 180. The auxiliary storage systems 100B, 100C read journals of data update from the primary storage system 100A at respective independent timings, save the journals in prescribed logical volumes JNL 2, JNL 3, produce copying of the data present in the primary storage system 100A based on the journals present in the logical volumes JNL 2, JNL 3 at the independent timings, and save the copies in auxiliary logical volumes COPY 1, COPY 3. The primary storage system 100A holds the journals till both auxiliary storage systems 100B, 100C read the journals and restore. The timing of journal read can be controlled according to the journal quantity, processing load, and the like.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventor: Naohisa Kasako
  • Patent number: 7457890
    Abstract: An integrated multimedia system having a multimedia processor is disposed in an integrated circuit having a first host processor system coupled to the multimedia processor and a second local processor disposed within the multimedia processor for controlling the operation of the multimedia processor. A data transfer switch is coupled to the second processor for transferring data to various modules of the processor, at least one of which is a data cache. The data transfer switch transfers data in either direction between the cache and a module within the processor. A data streamer schedules simultaneous data transfers among the various-modules disposed within the multimedia processor in accordance with corresponding channel allocations. An interface unit is coupled to the data streamer and has a plurality of input/output (I/O) device driver units. A plurality of external I/O devices are coupled to the plurality of I/O device driver units via a multiplexer.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: David Baker, Christopher Basoglu, Benjamin Cutler, Richard Deeley, Gregorio Gervasio, Atsuo Kawaguchi, Keiji Kojima, Woobin Lee, Takeshi Miyazaki, Yatin Mundkur, Vinay Naik, Kiyokazu Nishioka, Toru Nojiri, John O'Donnell, Sarang Padalkar
  • Patent number: 7457339
    Abstract: Arrayed DBR (Distributed Bragg Reflector) laser shows a problem that spectrum purity is deteriorated when a current is flowed in a semiconductor optical amplifier for attaining a sufficient optical output. In addition, the arrayed waveguide grating laser shows a problem that the spectrum purity is deteriorated by leakage of light. An output end of each of the laser channels is provided with a gate (a core) that can be controlled through bias application. The gate has a function for amplifying light when the laser channels are operated and for absorbing light when the laser channels are not operated.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventor: Hideo Arimoto
  • Patent number: 7455508
    Abstract: A scroll type fluid machine having a driving system including a counter weight and a sub weight, in which an efficiency of an assembling operation is enhanced by simplifying an assembling structure of the driving system. In the fluid machine, a sub weight (17) is provided on a rotary shaft (16) and a counter weight (20) is provided on a driving bush (19) . The driving bush (19) is attached to the rotary shaft (16) by an attachment bolt (23) to prevent relative rotation between the rotary shaft and the driving bush. The rotary shaft (16) supported by a main bearing (18) and is driven in rotation by a motor (9), with the result that an orbiting scroll (4) performs an orbiting motion with respect to a fixed scroll (2).
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Kazutaka Suefuji, Shunsuke Mori, Junichi Nagasawa
  • Patent number: 7457513
    Abstract: A recorder/reproducer for recording and reproducing signals includes a receiver which receives signals, a first recorder which records the signals received by the receiver on a first recording medium, and a first reproducer which reproduces the signals recorded on the first recording medium. A second recorder is provided which records the signals reproduced by the first reproducer on a second recording medium, a detector is provided which detects a commercial message portion from the signals recorded on the second recording medium, and a second reproducer is provided which reproduces the signals recorded on the second recording medium while excluding the commercial message portion detected by the detector.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Kouji Fujita, Hideo Nishijima, Motoyoshi Sasaki
  • Patent number: 7457705
    Abstract: A terminal apparatus of the present invention having a position detection unit and a display unit further includes a geographic information storage unit for storing three-dimensional terrain shape information, an attitude detection unit for detecting the attitude of the terminal apparatus, and an image creation unit for obtaining information on a vector vertical to the display unit based on information on the attitude obtained by the attitude detection unit and creating a three-dimensional terrain image at a viewpoint using a current position obtained by the position detection unit, information on a line-of-sight defined by the information on the vector, and the three-dimensional terrain shape information in the geographic information storage unit. When the attitude of the terminal apparatus is changed, the three-dimensional terrain image on the display unit is updated, following a change in the attitude of the terminal apparatus.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Yoshitaka Takahashi, Munetoshi Unuma, Takeshi Horie, Fumitaka Otsu
  • Patent number: 7455496
    Abstract: A turbine fuel pump includes an impeller having blades, each including a linear blade portion extending linearly in the radial direction of the impeller and a curved blade portion extending circularly curvedly from the head of the linear blade portion to the forward side of the impeller as viewed in the direction of rotation of the impeller. The linear blade portion has a length of (? to ?)×H, where H is an overall length of the impeller.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Junichi Motojima, Masaaki Iijima
  • Patent number: 7457526
    Abstract: For providing a recording/reproducing apparatus, for recoding and reproducing a digital signal onto first and second recording media 200 and 300, in particular, being simple in the controlling method when conducting data copying between those recording media, being difference in the control formats thereof, comprising: a memory 104 for storing therein the digital signal, temporality; an input/output portion 101, through which a control signal and the digital signal for use of recording and reproducing are inputted and outputted; a controller 102 for performing two (2) kinds of controlling, being different from each other, with respect to said first and second recording media, upon basis of a one (1) kind of control signal inputted at said input/output portion; and an arbiter 103 for arbitrating and processing the digital signal in a time-sharing manner among said first recoding medium, said second recording medium and said memory, wherein the signal recorded in the first recording medium 200 recorded onto the
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Tomoyuki Nonaka, Katsuyuki Watanabe, Manabu Sasamoto
  • Patent number: 7457856
    Abstract: A storage configuration is automatically changed depending on a storage configuration change schedule which is defined previously by an administrator. Moreover, it is verified whether a storage configuration can be changed or not at the time designated when the schedule is changed.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Soejima, Yasunori Kaneda, Nobumitsu Takaoka
  • Patent number: 7457206
    Abstract: In an optical head, if a lens is reduced in size so that it can be integrated with a light source and a photodetector, other optical components as well as the lens must be reduced in size, which would result in greater difficulties in handling for assembly and adjustment purposes. The invention allows large quantities of ultra-small optical heads to be produced accurately and at low cost, the optical heads being easy to adjust and not requiring the handling of minute components for adjustment purposes. A first substrate includes lenses for focusing light on an information storage medium, a second substrate includes detectors and disposed on the surface thereof, and a layer, which is disposed between the first and second substrates, includes prisms and mirrors. The layer also includes cavities in which light sources are disposed. The individual substrates are formed in the form of wafers with the lenses, mirrors, prisms, light sources, and photodetectors disposed thereon.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Shimano, Masatoshi Kanamaru, Masaya Horino
  • Patent number: 7457529
    Abstract: A video recording method and a video recording apparatus which enables recording of can record both moving and still pictures on a recording medium. The moving pictures encoded by a first encoding method are recorded or the recording medium when in recording moving pictures and still pictures encoded by a second encoding method, and the still pictures encoded by the first encoding method are recorded when recording still pictures.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Masaru Takahashi, Junji Shiokawa
  • Patent number: 7455133
    Abstract: An electric four-wheel drive vehicle and a control unit for the same, which can be applied to cars of class having larger displacements than the class to which the electric four-wheel drive vehicle equipped with the DC motor is applied, without increasing the cost over that of the known mechanical four-wheel drive vehicle. Front wheels of the vehicle are driven by an engine, and rear wheels are driven by an AC motor. A generator is driven by a rotating force of the engine to output DC power. An inverter converts the DC power outputted from the generator to AC power. A control unit controls the generator such that energy Pm required for driving the AC motor is outputted from the generator.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Satoru Kaneko, Tatsuyuki Yamamoto, Masaru Ito, Hisaya Shimizu, Kenta Katsuhama
  • Patent number: 7455103
    Abstract: An electronic equipment is provided, which comprises a liquid-cooling system and a cooling fan as a cooling system, efficiently cools the liquid-cooling system, and reduces fan noise.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Katsuya Sato, Hironori Oikawa
  • Patent number: 7457925
    Abstract: To enable favorable control of the storage of electronic information, a management device connected communicably to one or more storage control devices that are connected communicably to at least one of a plurality of storage devices refers to resource information relating to the usage condition of at least one hardware resource from among the one or more storage control devices, specifies an unused part of the hardware resource from the resource information, and sets a storage virtual computer, which serves as a virtual computer to which all or a part of the specified unused part is allocated, in at least one of the one or more storage control devices.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventor: Shuji Fujino
  • Patent number: 7457780
    Abstract: A cyber mall system has a contents sales apparatus for selling digital contents, a contents purchasing apparatus, and a network for connecting these components. When digital contents are registered into the contents sales apparatus, digital contents personal using conditions are generated on the basis of digital contents using conditions and are provided to a customer. If the digital contents are again purchased after the delivery of the digital contents fails, as long as the digital contents personal using conditions provided at the time of purchase are valid, the digital contents are again delivered without again collecting a digital contents value.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Tomoko Kimura, Nobuya Okayama, Hiroshi Koike, Miyoko Namioka
  • Patent number: 7456913
    Abstract: A large number of pixels PXL are arranged in a matrix fashion in a display region DSP on an insulating substrate. Disposed around the display region DSP are a drain-side pixel-driving circuit including a drain shift register DSR, a digital-to-analog converter circuit DAC, a drain level shifter DLS, a buffer BF and sampling switches SSW; and a gate-side pixel-driving circuit including a gate shift register GSR and a gate level shifter GLS, and various kinds of circuits. Current mobility of thin film transistors constituting a circuit region SX requiring high-speed operation of these pixel-driving circuits is improved by optimizing a combination of plural layouts, arrangements and configurations for the respective circuits to meet the specifications special for the respective circuits.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: November 25, 2008
    Assignees: Hitachi, Ltd., Hitachi Displays, Ltd.
    Inventors: Mitsuharu Tai, Mutsuko Hatano, Shinya Yamaguchi, Takeo Shiba, Hideo Sato
  • Patent number: 7457711
    Abstract: In a thermal-type airflow meter that measures an intake airflow rate in an internal combustion engine of an automobile or the like, there has been a problem that pulsation errors caused by external fluctuations under the environment including a large pulsation and reverse flow in the intake valve are difficult to be reduced. In order to solve this problem, the invention provides a flowmeter comprising a detection element that outputs a non-linear signal corresponding to a flow rate, and a regulation means that regulates an output signal of the detection element for controlling. With this construction, the regulation means executes output regulation processing that regulates irregularities of the detection element in the output signal, and inequality linearization processing that regulates an average value of the output signal after the output regulation processing by means of regulating parameters.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: November 25, 2008
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Atsushi Kanke, Masahiro Matsumoto, Shinya Igarashi, Keiji Hanzawa, Kei Ueyama
  • Patent number: 7455901
    Abstract: There is provided a fiber-reinforced composite material containing fibers having an average fiber diameter of 4 to 200 nm and a matrix material, the composite material having a visible light transmittance of 60% or more at a wavelength of 400 to 700 nm, which is a conversion value based on a thickness of 50 ?m. A fiber-reinforced composite material composed of a matrix material and a fiber aggregate impregnated therewith is provided, in which when a segment length of a bright region corresponding to a pore region of the fiber aggregate is represented by L, which is obtained by statistical analysis of a unidirectional run-length image formed from a binary image obtained by binarization of a scanning electron microscopic image of the fiber aggregate, the total length of segments that satisfy L?4.5 ?m is 30% or less of the total analyzed length.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: November 25, 2008
    Assignees: Kyoto University, Rohm Co., Ltd., Mitsubishi Chemical Corporation, Hitachi, Ltd., Pioneer Corporation
    Inventors: Hiroyuki Yano, Junji Sugiyama, Masaya Nogi, Shin-ichiro Iwamoto, Keishin Handa, Akira Nagai, Takao Miwa, Yoshitaka Takezawa, Toshiyuki Miyadera, Takashi Kurihara, Tohru Matsuura, Nobutatsu Koshoubu, Tohru Maruno
  • Patent number: 7457105
    Abstract: A vacuum switchgear system, which comprises a plurality of vacuum switchgears each comprising a vacuum container for accommodating the desired number of vacuum switches selected from a disconnecting switch or load break switch, an earth switch and an vacuum circuit breaker. Each of the vacuum switches has connecting terminals. The switchgears constitute different types of switchgears, the switchgears being classified into the power receiving side and power distribution side. The switchgears are connected with the adjoining switchgear or an element selected from an arrester and a PCT by means of an insulated connecting conductor having terminals around both ends thereof. The terminals are electrically connectable with and detachable from the connecting terminals of the switchgears.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Shuuichi Kikukawa, Kenji Tsuchiya, Satoru Kajiwara, Masato Kobayashi, Yoshiki Sakamoto