Patents Assigned to Hitachi
  • Publication number: 20110283037
    Abstract: An object is to provide an information processing apparatus capable of improving the availability as a system while improving the reliability of a data transfer path and a data transfer method.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 17, 2011
    Applicant: HITACHI, LTD.
    Inventors: Tsutomu Koga, Yo Iwaoka
  • Patent number: 8058184
    Abstract: Disclosed is a producing method of a semiconductor device, including: loading at least one substrate formed on a surface thereof with a tungsten film into a processing chamber; and forming a silicon oxide film on the surface of the substrate which includes the tungsten film by alternately repeating following steps a plurality of times: supplying the processing chamber with a first reaction material including a silicon atom while heating the substrate at 400° C.; and supplying the processing chamber with hydrogen and water which is a second reaction material while heating the substrate at 400° C. at a ratio of the water with respect to the hydrogen of 2×10?1 or lower.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: November 15, 2011
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Hironobu Miya, Masayuki Asai, Norikazu Mizuno
  • Patent number: 8059356
    Abstract: A disk drive. The disk drive includes a head, a moving mechanism, a first peak filter, an adaptive peak filter, and a filter controller. The head is configured to read servo data on a disk at sampling frequency. The moving mechanism is configured to move the head in proximity with a recording surface of the disk. The first peak filter has a fixed peak frequency and a variable gain, and is configured to be inserted into a servo loop. The servo loop is configured to position the head with position error signals between servo data read by the head and a target position. The adaptive peak filter has a variable peak frequency and a variable gain, and is configured to be inserted into the servo loop. The filter controller is configured to control the gain of the adaptive peak filter according to the gain of the first peak filter.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: November 15, 2011
    Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
    Inventors: Chikako Sakagami, Kazuhisa Shishida, Isao Yoneda, Kazuaki Usui, Hiroshi Uchida, Takeshi Saito, Kenji Tomida, Takenori Atsumi
  • Patent number: 8056683
    Abstract: There is provided an electric disk brake including a caliper and a lock mechanism wherein the lock mechanism shifts with a pad pressing member, and is composed of: a shifting member provided with a plurality of claws with a predetermined pitch in a shifting direction; an engaging member provided with an engaging portion which is engageable with the claws of the shifting member; an actuator driving the engaging member in a direction that the engaging portion engages with the claws of the shifting member; and an energizing means normally energizing the engaging member in a direction that the engaging portion is detached from the claws of the shifting member, and the engaging portion is engaged with the claws provided on one-side surface of the shifting member when being locked while the engaging portion is positioned on the other-side surface of the shifting member when being unlocked.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: November 15, 2011
    Assignee: Hitachi, Ltd.
    Inventor: Takuya Usui
  • Patent number: 8059235
    Abstract: A liquid crystal display includes a pair of substrates having a polarizer, a liquid crystal layer sandwiched between the substrates of the pair, a color filter layer sandwiched between one of the substrates of the pair and the liquid crystal layer, a light source for supplying light to the pair of substrates, the liquid crystal layer, and the color filter layer. The color filter layer includes three filters for displaying blue, green and red. Only the green filter of the three filters selectively includes an absorbing component capable of absorbing a light spectrum within a wavelength range from 480 nm to 500 nm.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: November 15, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yuka Utsumi, Makiko Sugibayashi, Ikuo Hiyama, Katsumi Kondo, Mutsumi Maehara
  • Patent number: 8059367
    Abstract: A method according to another embodiment includes forming a side shield layer of ferromagnetic material above a substrate; masking the side shield layer; milling an unmasked region of the side shield layer for forming a pole trench therein; and forming a pole layer in the pole trench. A structure according to one embodiment includes a substrate; a side shield layer of ferromagnetic material on the substrate, wherein the substrate has a region covered by the side shield layer and a region not covered by the side shield layer; a pole trench in the side shield layer and the region of the substrate not covered by the side shield layer; a layer of nonmagnetic material in the pole trench; and a pole layer in the pole trench, wherein the pole layer has a greater thickness above the region of the substrate not covered by the side shield layer than above the region of the substrate covered by the side shield layer.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: November 15, 2011
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Edward Hin Pong Lee, Aron Pentek
  • Patent number: 8058842
    Abstract: A cell controller having excellent productivity is provided. A cell-con 80 has 12 ICs IC-1 to IC-12 mounted on a substrate, and these ICs detect voltages of respective cells constituting a cell pack, perform capacity adjustment on the respective cells, and are mounted two by two on rectangular longer sides of a rectangular continuous straight line L-L? defined on a substrate from the IC-1 on a highest potential side to the IC-12 on a lowest potential side continuously in order of potential differences of the corresponding cell packs. Distances between the rectangular shorter sides of the rectangular continuous straight line L-L? are the same. On the cell-con 80, between the IC-1 to IC-12 having different ground voltages, each of the ICs has signal output terminals connected to signal input terminals of a lower order IC respectively in an electrically non-insulated state.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: November 15, 2011
    Assignee: Hitachi Vehicle Energy, Ltd
    Inventors: Tsuyoshi Kai, Tunemi Aiba, Akihiko Kudo, Yoshinori Aoshima, Akihiko Emori
  • Patent number: 8056421
    Abstract: An apparatus structure and measurement method are provided to retain high precision and high reliability of a semiconductor mechanical quantity measuring apparatus which senses a mechanical quantity and transmits measured information wirelessly. As to a silicon substrate of the semiconductor mechanical quantity measuring apparatus, for example, a ratio of a substrate thickness to a substrate length along a measurement direction is set small, and a ratio of a substrate thickness to a substrate length along a direction perpendicular to the measurement direction is set small. The apparatus upper surface is covered with a protective member. It is possible to measure a strain along a particular direction and realize mechanical quantity measurement with less error and high precision. An impact resistance and environment resistance of the apparatus itself can be improved.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: November 15, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Sumigawa, Hiroyuki Ohta
  • Patent number: 8059350
    Abstract: A patterned-media perpendicular magnetic recording disk has patterned servo regions and is nanoimprinted from a master mold made using directed self-assembly of block copolymers. The disk has patterned concentric circular data tracks of discrete data islands, with the tracks having a track pitch in the radial or cross-track direction. The disk also has patterned servo sectors extending generally radially across the patterned data tracks. The servo pattern is a chevron pattern of slanted or non-radial stripes that have a stripe pitch in the cross-stripe direction substantially equal to the track pitch. As a result of the method of making the master mold, the nanoimprinted disk has a chevron servo pattern with non-radial stripes that are magnetized segments of radial lines separated by nonmagnetic spaces.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: November 15, 2011
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Thomas R. Albrecht, Jonathan Darrel Coker, Ricardo Ruiz, Bruce Alexander Wilson
  • Patent number: 8058779
    Abstract: A piezoelectric thin film element includes a bottom electrode, a piezoelectric layer and a top electrode on a substrate. The piezoelectric layer includes as a main phase a perovskite-type oxide represented by (NaxKyLiz)NbO3 (0?x?1, 0?y?1, 0?z?0.2, x+y+z=1), and the bottom electrode includes a surface roughness of not more than 0.86 nm in arithmetic mean roughness Ra or not more than 1.1 nm in root mean square roughness Rms.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: November 15, 2011
    Assignee: Hitachi Cable, Ltd.
    Inventors: Kazufumi Suenaga, Kenji Shibata, Fumihito Oka, Hideki Sato
  • Patent number: 8057599
    Abstract: A CVD device has a reaction furnace (39) for processing a wafer (1); a seal cap (20) for sealing the reaction furnace (39) hermetically; an isolation flange (42) opposite to the seal cap (20); a small chamber (43) formed by the seal cap (20), the isolation flange (42), and the wall surface in the reaction furnace (39); a feed pipe (19b) for supplying a first gas to the small chamber (43); an outflow passage (42a) provided in the small chamber (43) for allowing the first gas to flow into the reaction furnace (39); and a feed pipe (19a) provided downstream from the outflow passage (42a) for supplying a second gas into the reaction furnace (39). Byproducts such as NH4Cl are prevented from adhering to low temperature sections such as the furnace opening and therefore the semiconductor device production yield is therefore increased.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: November 15, 2011
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Takashi Ozaki, Tomoshi Taniyama, Hiroshi Unami, Kiyohiko Maeda, Shinya Morita, Yoshikazu Takashima, Sadao Hisakado
  • Patent number: 8059245
    Abstract: An active matrix liquid crystal display device is provided, in which an after image remaining after removing an application of a direct current voltage is suppressed. The active matrix liquid crystal display device has a liquid crystal layer containing a liquid crystal molecule having negative dielectric anisotropy and a dopant having a dissociative group.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: November 15, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yasushi Iwakabe, Masuyuki Ohta, Shigeru Matsuyama, Hitoshi Oaku, Katsumi Kondo
  • Patent number: 8060711
    Abstract: Provided is a storage system capable of holding data by associating main data for long-term retention with sub data for maintaining its readability. The storage system: stores first data in a first location within a storage area upon reception of a storage request for the first data with a first file identifier being specified; holds information for associating the first file identifier, the first location, a retention period of the data, and first version information with one another; stores second data in a second location within the storage area upon reception of a storage request for the second data with the first file identifier and second version information being specified; holds information for associating the first file identifier, the second location, and the second version information with one another; and inhibits the first data and the second data from being changed before elapse of the retention period of the data.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: November 15, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yuri Hiraiwa, Hiroshi Nasu
  • Patent number: 8059352
    Abstract: Patterned-media magnetic recording disks are made from a master template that has nondata regions that contain a pattern of one or more discrete nondata islands and discrete gaps, with the pattern representing a scrambled number. All disks made from the master template, or from replica molds made from the master, will have the same patterns. When the disks are DC-magnetized so that all the nondata islands are magnetized in the same direction, these patterns will include one or more of discrete magnetized nondata islands and discrete nonmagnetic gaps that are scrambled in a pseudo-random manner. During operation of the disk drive the patterns are detected by the read head and interpreted within the disk drive using knowledge of the pseudo-random scrambling function, so that reading and writing of data can occur in the conventional manner. If the disks are copied in an attempt to replicate the master template, the resulting disks will be inoperable in a disk drive because of the scrambling.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: November 15, 2011
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Zvonimir Z. Bandic, Jorge Campello de Souza, Cyril Guyot, Bruce Alexander Wilson
  • Patent number: 8059331
    Abstract: The present invention relates to a light control film, comprising: two transparent electroconductive resin substrates; and a light control layer sandwiched by the two transparent electroconductive resin substrates, wherein the light control layer contains a resin matrix and a light control suspension dispersed in the resin matrix, and the thickness of the transparent electroconductive resin substrates is from 10 to 80 ?m.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: November 15, 2011
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Osamu Higashida, Hitoshi Yamazaki, Shigeshi Ohno
  • Patent number: 8058803
    Abstract: Provided is an organic EL display device in which a large amount of a moisture absorbent is formed in a limited narrow region. An organic electroluminescence display device includes a rectangle element substrate having a display region; and a sealing substrate firmly adhered to the element substrate at a protrusion formed on the periphery thereof, in which a moisture absorbent is formed in a region of a concave surface surrounded by the protrusion so as not to overlap the display region, and the moisture absorbent includes moisture absorbents which are formed of a plurality of linear pattern set each joined to adjacent another moisture absorbents so as to be disposed in parallel with each other, and the crosssections of the moisture absorbents intersecting the longitudinal direction of the moisture absorbents are formed in the shape of a plurality of mounds joined to each other.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: November 15, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Issei Takemoto, Nobuhiko Fukuoka, Hitoshi Azuma
  • Patent number: 8059081
    Abstract: In the display device which is used in a miniaturized portable equipment, when a drive circuit is also connected on the same substrate as pixels, an input signal of low voltage has a level thereof shifted even when the threshold value is large or fluctuated. The display device includes pixel electrodes, switching elements which supply video signals to the pixel electrodes, and a drive circuit which supplies the video signals to the switching elements on the same substrate, wherein the drive circuit includes a level shift circuit, the level shift circuit includes a transistor. In a state that the transistor assumes an ON state, when an input signal is inputted to a source terminal and the input signal is at a low voltage level, a drain terminal assumes a low voltage level. Further, even when the input signal is at a high voltage level equal to or lower than a threshold value, the drain terminal outputs a voltage equal to or more than the threshold value as a high level voltage.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: November 15, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Kozo Yasuda, Katsumi Matsumoto, Toshio Miyazawa
  • Patent number: 8059373
    Abstract: Magnetic sensing chips and methods of fabricating the magnetic sensing chips are disclosed. A magnetic sensing chip as described herein includes an EMR sensor formed on a substrate from multiple semiconductor layers. One or more of the semiconductor layers form a quantum well comprising a two-dimensional electron gas (2DEG) or hole gas (2DHG). The magnetic sensing chip also includes one or more transistors formed on the substrate from the multiple semiconductor layers. The transistor(s) likewise include a quantum well comprising a 2DEG or 2DHG. The EMR sensor and the transistor(s) are connected by one or more connections so that the transistor(s) amplifies data signals from the EMR sensor.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: November 15, 2011
    Assignee: Hitachi Global Storage Technologies Netherlands, B.V.
    Inventors: Liesl Folks, Robert E. Fontana, Jr., Bruce A. Gurney, Klaas B. Klaassen, Stefan Maat
  • Patent number: 8060777
    Abstract: First and second storage apparatuses respectively and internally set a remote copy pair for copying data of a first volume to a second volume and associate a third volume with a remote copy pair according to an external command. When an I/O request to the first volume ends in an error, a host computer sends an I/O request directed to the second volume to the second storage apparatus. If the first and the second storage apparatuses detect a failure in the first or the second storage apparatus of the other side or a connection failure between the first and the second storage apparatuses, the first and the second storage apparatuses store in the third volume a failure information flag showing that the failure was detected.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: November 15, 2011
    Assignee: Hitachi, Ltd.
    Inventor: Kenta Ninose
  • Patent number: 8058654
    Abstract: Provided is a display device including a p-type thin film transistor formed on a substrate, in which the p-type thin film transistor includes: a gate electrode; a drain electrode; a source electrode; an insulating film; a semiconductor layer formed on a top surface of the gate electrode through the insulating film; and diffusion layers of p-type impurities formed at each of an interface between the drain electrode and the semiconductor layer and an interface between the source electrode and the semiconductor layer, the drain electrode and the source electrode being formed so as to be opposed to each other with a clearance formed therebetween on a top surface of the semiconductor layer.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: November 15, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hidekazu Miyake, Eiji Oue, Takuo Kaitoh, Toshio Miyazawa