Patents Assigned to Hitachi
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Patent number: 8126259Abstract: In the case of die-to-die comparison, threshold processing units process the differential image between the image of a sample chip and the images of left and right adjacent chips using a second threshold value lower than a first threshold value thereby to determine a defect candidate for the sample chip. Further, threshold processing units process the differential image using the first threshold value. The defect candidates which develops a signal not smaller than the first threshold is detected as a defect. Also in the cell-to-cell comparison, the differential image is first processed by the second threshold value to determine a defect candidate, and the differential image is further processed by the first threshold value. The defect candidates which develops a signal not smaller than the first threshold value is detected as a defect.Type: GrantFiled: April 7, 2010Date of Patent: February 28, 2012Assignee: Hitachi High-Technologies CorporationInventor: Kei Shimura
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Patent number: 8125386Abstract: Antennas with steerable antenna patterns and techniques for using such antennas are described. In accordance with the invention, antenna patterns with one or more NULLs are used. Through the use of digital control signals the antenna pattern is steered so that a source of signal interference, e.g., a multipath signal, will be located in a NULL. In this manner the received signal's S/N ratio can be maximized thereby facilitating demodulation. The techniques of the invention can be applied to television, computer devices, mobile devices and a wide range of other systems. Digital commands to control an antenna may include multiple information fields, e.g., a direction field, a channel field, a gain field and a polarity field. Antennas incapable of supporting the specified fields disregard information in fields which are not supported. Information in each supported field is decoded and used to adjust the corresponding antenna characteristic.Type: GrantFiled: November 4, 2009Date of Patent: February 28, 2012Assignees: Hitachi America, Ltd., Hitachi Home Electronics (Amerca), Inc.Inventors: John G. N. Henderson, Carl Scarpa
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Patent number: 8123573Abstract: A connection structure includes a first terminal housing with first connecting terminals, a second terminal housing with second connecting terminals, isolating plates in the first terminal housing, a connecting member to collectively fix the first connecting terminals and the second connecting terminals at the contacts therebetween for electrical connections between the first connecting terminals and the second connecting terminals. The connection structure is adapted to heat generated at the contacts through the connecting member, the first terminal housing and/or the second terminal housing to an outside of the first terminal housing.Type: GrantFiled: May 20, 2010Date of Patent: February 28, 2012Assignee: Hitachi Cable, Ltd.Inventors: Hideaki Takehara, Kunihiro Fukuda, Sachio Suzuki, Yuta Kataoka
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Patent number: 8124666Abstract: An object of the present invention is to provide an energy ray-curable ink composition which is excellent in curability and adhesion, and is also excellent in storage stability. The present invention relates to an energy ray-curable ink composition comprising a coloring material; a polyfunctional monomer having three or more ethylenical double bonds in one molecule as a polymerizable compound; an ?-aminoalkylphenone-based compound and a thioxanthone-based compound as photopolymerization initiators; and a hindered amine-based compound having a 2,2,6,6-tetramethylpiperidinyl group as an antigelling agent.Type: GrantFiled: February 4, 2009Date of Patent: February 28, 2012Assignee: Hitachi Maxell, Ltd.Inventors: Katsuyuki Kito, Masayuki Oya, Satoshi Kobayashi
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Patent number: 8125727Abstract: A disk drive. The disk drive includes a disk configured to store data, a motor configured to rotate the disk, a head-slider and a controller. The head-slider includes a slider configured to fly in proximity to a recording surface of the disk, and an element on the slider. The controller is configured to measure a fly height between the head-slider and the disk at different common-mode voltages of the element to determine an operational common-mode voltage from a measurement result.Type: GrantFiled: September 18, 2009Date of Patent: February 28, 2012Assignee: Hitachi Global Storgae Technologies, Netherlands B.V.Inventors: Kazushi Tsuwako, Yuusuke Matsuda, Masashi Murai, Toshiya Shiramatsu
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Patent number: 8125728Abstract: A disk drive. The disk drive includes a disk, a head-slider, a moving mechanism, and a controller. The head-slider includes a read/write element, a first heater element, a contact pad, and a second heater element. The read/write element includes a read element configured to read user data from the disk, and a write element configured to write user data to the disk. The moving mechanism is configured to support and to move the head-slider. The controller is configured to control the second heater element to control contact between the contact pad and the disk, and is configured to control clearance between the read/write element and the disk by using the first heater element with the contact pad in contact with the disk.Type: GrantFiled: November 25, 2009Date of Patent: February 28, 2012Assignee: Hitachi Global Storage Technologies, Netherlands B.V.Inventors: Masayuki Kurita, Toshiya Shiramatsu, Hidekazu Kohira, Kenji Kuroki
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Patent number: 8125090Abstract: Use of Pb-free solder has become essential due to the environmental problem. A power module is formed by soldering substrates with large areas. It is known that in Sn-3Ag-0.5Cu which hardly creeps and deforms with respect to large deformation followed by warpage of the substrate, life is significantly shortened with respect to the temperature cycle test, and the conventional module structure is in the situation having difficulty in securing high reliability. Thus, the present invention has an object to select compositions from which increase in life can be expected at a low strain rate. In Sn solder, by doping In by 3 to 7% and Ag by 2 to 4.5%, the effect of delaying crack development at a low strain rate is found out, and as a representative composition stable at a high temperature, Sn-3Ag-0.5Cu-5In is selected. Further, for enhancement of reliability, a method for partially coating a solder end portion with a resin is shown.Type: GrantFiled: July 27, 2010Date of Patent: February 28, 2012Assignee: Hitachi, Ltd.Inventors: Tasao Soga, Daisuke Kawase, Kazuhiro Suzuki, Eiichi Morisaki, Katsuaki Saito, Hanae Shimokawa
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Patent number: 8125647Abstract: An object of this invention is to provide a charged particle beam apparatus that can easily evaluate the stability of a position that is irradiated with a charged particle beam. To achieve the above object, this invention includes a detector that scans a charged particle beam and detects secondary particles that originate from a substrate, and an image processer that displays an image of the substrate on a display based on the secondary particles that are detected by the detector. The image processer is configured to display on the display any two or more members of the group consisting of a scanning image produced by the charged particle beam of the substrate, a wave in time domain showing fluctuations of the irradiation position of the charged particle beam on the substrate, and a power spectrum of the wave in time domain.Type: GrantFiled: February 17, 2009Date of Patent: February 28, 2012Assignee: Hitachi High-Technologies CorporationInventors: Hiroshi Tsuji, Naoma Ban
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Patent number: 8127101Abstract: Provided is a file server providing a file service to a host computer, including an interface coupled to the host computer; a processor; a memory; and an interface coupled to a disk drive. The file server is configured to calculate a capacity of storage areas in the memory, which is required to provide the file service; execute a first memory check in which the storage areas having the calculated capacity are tested; execute, after the first memory check is completed, a second memory check in which remaining storage areas in the memory are tested; and start, in a period after the first memory check is completed and before the second memory check is completed, providing the file service.Type: GrantFiled: October 1, 2008Date of Patent: February 28, 2012Assignee: Hitachi, Ltd.Inventors: Takayuki Fukatani, Akiyoshi Hashimoto
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Patent number: 8127093Abstract: A physical storage area that is allocated to an unused area of a virtual volume is removed. A management unit sends a request to a server computer to make every piece of data stored in a first logical volume migrate to a second logical volume. The server reads all the data out of the first logical volume and writes the data in the second logical volume. A storage system that includes the first logical volume and the second logical volume allocates a physical storage area to an area of the second logical volume where the data is to be written, and writes the data in the allocated physical storage area. The storage system then deletes the first logical volume.Type: GrantFiled: November 12, 2008Date of Patent: February 28, 2012Assignee: Hitachi, Ltd.Inventors: Masayasu Asano, Koichi Murayama
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Patent number: 8125116Abstract: An alternator for vehicle includes a stator that outputs an AC voltage and a rotor that includes a field coil and a rotor core. The stator includes a plurality of phase stators that are disposed side-by-side along the rotational axis and individually output AC voltages. The phase stators include an even number of stator tabs alternately extending from one outer side of a phase stator coil toward another outer side of the phase stator coil and extending from the other outer side toward the one outer side along the rotational axis. The rotor includes a field coil and a rotor core at which an even number of rotor tabs are formed along the circumferential direction so as to alternately extend from one outer side of the field coil toward another outer side of the field coil along the rotational axis and extend from the other outer side toward the one outer side along the rotational axis. A phase stator core at each phase stator is formed by laminating a plurality of magnetic sheets.Type: GrantFiled: June 18, 2008Date of Patent: February 28, 2012Assignee: Hitachi, Ltd.Inventors: Toshio Ishikawa, Minoru Yabuki, Yoshihisa Ishikawa, Yuji Enomoto
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Patent number: 8125726Abstract: When a disk device corresponding to a logical volume is started, a disk system determines and starts a disk device and a fan to be started, while comprehensively considering heat quantity generated by the disk device to be started, the cooling capacity of the fan, and the electric power consumption of the fan or the electric power consumption of the disk device.Type: GrantFiled: March 25, 2010Date of Patent: February 28, 2012Assignee: Hitachi, Ltd.Inventors: Akira Yamamoto, Takashige Iwamura, Yasunori Kaneda
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Patent number: 8124275Abstract: To smoothly deliver a thermal energy required in an active site of a catalyst carried on a carrier. A method of manufacturing a catalyst carrier of the present invention includes the steps of: forming a mixed thin film in which at least metal and ceramics are mixed on a metal base, by spraying aerosol, with metal powders and ceramic powders mixed therein, on the metal base; and making the mixed thin film porous, by dissolving the metal of the mixed thin film into acid or alkaline solution to remove this metal.Type: GrantFiled: January 28, 2009Date of Patent: February 28, 2012Assignee: Hitachi Cable, Ltd.Inventors: Mineo Washima, Kenji Shibata, Fumihito Oka
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Patent number: 8126511Abstract: A radio communications system that shows the full effect for responding to the event of a disaster is provided. In a terminal station device, an imaging means captures an image; a composition information management means manages information about a composition for imaging; and a terminal station transmission means transmits, by radio, to a base station device, information about the captured image and the information about the composition. In the base station device, the base station reception means receives the information transmitted, by radio, from the terminal station device. In the center station, a display means displays, with a correlation, the information about the image and the information about the composition transmitted by the terminal station device based on the information received by the base station device.Type: GrantFiled: December 5, 2005Date of Patent: February 28, 2012Assignee: Hitachi Kokusai Electric Inc.Inventors: Hironao Matsuoka, Katsuyuki Nakano
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Patent number: 8125518Abstract: Provided is a scanning electron microscope including: an image recording unit (112) which stores a plurality of acquired frame images; a correction analyzing handling unit (113) which calculates a drift amount between frame images and a drift amount between a plurality of field images constituting a frame image; and a data handling unit (111) which corrects positions of respective field images constituting the plurality of fields images according to the drift amount between the field images and superimposes the field images on one another so as to create a new frame image. This provides a scanning electron microscope which can obtain a clear frame image even if an image drift is caused during observation of a pattern on a semiconductor substrate or an insulating object.Type: GrantFiled: November 24, 2009Date of Patent: February 28, 2012Assignee: Hitachi High-Technologies CorporationInventors: Nobuhiro Okai, Yasunari Sohda
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Patent number: 8124974Abstract: A display device is provided in which at least first and second thin film transistors are formed on a substrate, including a gate electrode formed on a semiconductor layer with a gate insulating film in between. The semiconductor layer is divided into individual regions for each film transistor, and is provided with a common region and LDD regions between a channel region and a drain region, as well as between the channel region and a source region. The gate electrode is formed as an integrated gate electrode for the first and second thin film transistors that faces the common region, the channel region and the LDD regions of the first thin film transistor and the channel region and the LDD regions of the second thin film transistor.Type: GrantFiled: August 5, 2009Date of Patent: February 28, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takeshi Noda, Toshio Miyazawa, Takuo Kaitoh, Takumi Shigaki
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Patent number: 8125729Abstract: A disk drive. The disk drive includes a head, a motion mechanism, and a controller. The head is configured to access a disk configured to store data. The motion mechanism is configured to move the head. The controller is configured to determine a seek direction when an error occurred; and, the controller is configured to repeat a seek as a repeat seek to a target radial position from a direction opposite to the seek direction in an error-recovery process for the error which occurred in the seek in which the head moved to the target radial position.Type: GrantFiled: May 28, 2010Date of Patent: February 28, 2012Assignee: Hitachi Global Storage Technologies, Netherlands B.V.Inventors: Hideki Ohzeki, Kazuyuki Ishibashi, Yoshikatsu Fujii
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Publication number: 20120047325Abstract: Proposed are a disk array system and a traffic control method with which reliability can be improved by preventing system shutdown. A disk array system comprises a controller for controlling data I/O to and from a backend unit; a plurality of expanders provided in the backend unit and connected to the controller by way of a tree-structure topology; a plurality of storage devices provided in the backend unit and each connected to the corresponding expander; and a control unit for controlling the controller on the basis of an I/O request from a host device. The disk array system is configured such that the controller notifies the control unit of a link fault that has occurred in the backend unit, and the control unit, when supplied with the link fault notification from the controller, restricts issuance of I/O requests from the host device or restricts receipt of I/O requests sent from the host device as necessary.Type: ApplicationFiled: April 21, 2010Publication date: February 23, 2012Applicant: HITACHI, LTD.Inventors: Yuki Sakuma, Toshihiro Nitta, Midori Kurokawa
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Publication number: 20120047168Abstract: In order to mitigate a load in communications among an integrated search server, a plurality of search users and a plurality of search servers in an integrated search system, in the present invention, when an integrated search is executed, first, information for narrowing down the search servers is obtained from each search server, and subsequently, the search servers are narrowed down based on this information, and search results are obtained from only the search servers which have been narrowed down. Thereby, there are advantageous effects of reducing memory usage of the integrated search server, and reducing unnecessary network traffic between the integrated search server and each search server.Type: ApplicationFiled: April 16, 2010Publication date: February 23, 2012Applicant: HITACHI, LTD.Inventors: Kazuhito Yokoi, Yohsuke Ishii
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Publication number: 20120046884Abstract: While an illumination optical system 2 is irradiating the surface of a contaminated standard wafer 110 with illumination light, this illumination light is scanned over the surface of the contaminated standard wafer 110, then detectors 31 to 34 of a detection optical system 3 each detect the light scattered from the surface of the contaminated standard wafer 110, next a predefined reference value in addition to detection results on the scattered light is used to calculate a compensation parameter “Comp” for detection sensitivity correction of photomultiplier tubes 331 to 334 of the detectors 31 to 34, and the compensation parameter “Comp” is separated into a time-varying deterioration parameter “P”, an optical characteristics parameter “Opt”, and a sensor characteristics parameter “Lr”, and correspondingly managed. This makes it easy to calibrate the detection sensitivity.Type: ApplicationFiled: February 2, 2010Publication date: February 23, 2012Applicant: Hitachi High-Technologies CorporationInventors: Kenji Oka, Kenji Mitomo, Kenichiro Komeda