Patents by Inventor Hiroshi Ogasawara
Hiroshi Ogasawara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7305670Abstract: A method of installing software on a storage device controlling apparatus which includes at least one channel controller having a circuit board on which are formed a file access processing section receiving requests to input and output data in files as units from an information processing apparatus via a first network and an I/O processor outputting I/O requests corresponding to the requests to input and output data to a storage device; at least one disk controller executing input and output of data into and from the storage device in response to the I/O requests sent from the I/O processor; and a second network connecting the channel controller and the disk controller so as to be able to communicate with each other, the method comprises the step of writing software for enabling the file access processing section to function, into the storage device by communicating with the channel controller via the second network.Type: GrantFiled: January 13, 2004Date of Patent: December 4, 2007Assignee: Hitachi, Ltd.Inventors: Hiroshi Ogasawara, Yutaka Takata, Naotaka Kobayashi, Jinichi Shikawa, Nobuyuki Saika
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Method of Controlling Storage Device Controlling Apparatus, and Storage Device Controlling Apparatus
Publication number: 20070277007Abstract: In a storage device controlling apparatus which includes: a plurality of channel controllers having a circuit board on which are formed a file access processing section receiving from an information processing apparatus requests to input and output data in files as units via a network and an I/O processor outputting to a storage device I/O requests corresponding to the requests to input and output data; and a disk controller executing input and output of data into and from the storage device in response to the I/O requests sent from the I/O processors, at least one of the channel controllers receives data specifying an assignment of a logical volume to the channel controller, the data being sent from the information processing apparatus, and stores the received assignment.Type: ApplicationFiled: April 30, 2007Publication date: November 29, 2007Applicant: Hitachi, Ltd.Inventors: Shinichi Nakayama, Hiroshi Ogasawara, Naotaka Kobayashi, Jinichi Shikawa, Nobuyuki Saika -
Publication number: 20070262730Abstract: In an electrodeless discharge lamp suitable for use at a place with unfavorable environmental conditions or at a place where lamp replacement is difficult, the replacement of a lamp unit is facilitated and the lamp unit is prevented from falling off from a power coupler unit even if there is component deterioration caused by long-term use. A metallic elastic member is provided near a position on a metallic heat conduction member of the power coupler unit that is farthest from an electromagnetic field generating portion. In addition to an ordinary coupling structure between the power coupler unit and a coupling member, the elastic member is engaged with the coupling member of the lamp unit. When the lamp unit is mounted on or removed from the power coupler unit, a bulb of the lamp unit is turned relative to the power coupler unit about the axis and moved forward/backward in the direction of the axis.Type: ApplicationFiled: November 24, 2004Publication date: November 15, 2007Applicants: MATSUSHITA ELECTRIC WORKS, LTD., IKEDA ELECTRIC CO., LTD.Inventors: Hiroshi Ogasawara, Hidenori Kakehashi, Ryusuke Ura, Hiroshi Miyasaki, Keisuke Harada, Yoshinobu Shibata, Shigeki Matsuo, Kazuhiko Sakai
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Publication number: 20070226547Abstract: Disclosed is a disc controller, which includes a network controlling unit for receiving a data input/output request sent from an external device through a network, and a disc controlling unit formed in the same circuit board in which the network controlling unit is formed, the disc controlling unit coupling the network controlling unit thereto by an internal bus provided in the circuit board. In the disc controller, the disc controlling unit is configured to receive a command sent from the network controlling unit through the internal bus and execute a data input/output for a disc drive in response to the command.Type: ApplicationFiled: August 1, 2003Publication date: September 27, 2007Applicant: Hitachi, Ltd.Inventors: Yutaka Takata, Naotaka Kobayashi, Hiroshi Ogasawara
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Method of controlling storage device controlling apparatus, and storage device controlling apparatus
Patent number: 7263584Abstract: In a storage device controlling apparatus which includes: a plurality of channel controllers having a circuit board on which are formed a file access processing section receiving from an information processing apparatus requests to input and output data in files as units via a network and an I/O processor outputting to a storage device I/O requests corresponding to the requests to input and output data; and a disk controller executing input and output of data into and from the storage device in response to the I/O requests sent from the I/O processors, at least one of the channel controllers receives data specifying an assignment of a logical volume to the channel controller, the data being sent from the information processing apparatus, and stores the received assignment.Type: GrantFiled: February 8, 2006Date of Patent: August 28, 2007Assignee: Hitachi, Ltd.Inventors: Shinichi Nakayama, Hiroshi Ogasawara, Naotaka Kobayashi, Jinichi Shikawa, Nobuyuki Saika -
Publication number: 20070174457Abstract: A disk array system in accordance with the present invention comprises: a plurality of storage devices in which data is stored; a storage device control unit that controls storage of data in the plurality of storage devices; a connection unit connected to the storage device control unit; a first communication control unit; and a management terminal. The first communication control unit is connected to the storage device control unit via the connection unit, and connected on a first network external to the own disk array system, and transfers file data over the first network. The first communication control unit transfers data to the connection unit, and reads information on a fault occurring in the own disk array system from the plurality of storage devices so as to transfer the information to the management terminal.Type: ApplicationFiled: April 2, 2007Publication date: July 26, 2007Inventors: Kunihito Matsuki, Yutaka Takata, Hiroshi Ogasawara, Naotaka Kobayashi
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Publication number: 20070168610Abstract: Provided is a storage controller capable of improving the access performance to the storage device by preventing an I/O access request to the storage device from being concentrated on certain I/O processors among a plurality of I/O processor, and causing the plurality of I/O processors to issue the I/O access request in a well balanced manner. With this storage control system, a plurality of stripe units are formed by striping the logical volume into a stripe size of an arbitrary storage capacity, and information regarding which I/O processor among the plurality of I/O processors will output the I/O request to which stripe unit among the plurality of stripe units is stored as the control information in the memory.Type: ApplicationFiled: March 15, 2006Publication date: July 19, 2007Inventors: Naotaka Kobayshi, Kunihito Matsuki, Hiroshi Ogasawara, Youichi Gotoh
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Method of controlling storage device controlling apparatus, and storage device controlling apparatus
Patent number: 7240152Abstract: In a storage device controlling apparatus which includes: a plurality of channel controllers having a circuit board on which are formed a file access processing section receiving from an information processing apparatus requests to input and output data in files as units via a network and an I/O processor outputting to a storage device I/O requests corresponding to the requests to input and output data; and a disk controller executing input and output of data into and from the storage device in response to the I/O requests sent from the I/O processors, at least one of the channel controllers receives data specifying an assignment of a logical volume to the channel controller, the data being sent from the information processing apparatus, and stores the received assignment.Type: GrantFiled: December 10, 2004Date of Patent: July 3, 2007Assignee: Hitachi, Ltd.Inventors: Shinichi Nakayama, Hiroshi Ogasawara, Naotaka Kobayashi, Jinichi Shikawa, Nobuyuki Saika -
Publication number: 20070140075Abstract: An optical disk apparatus includes an objective-lens for converging light on a recording surface of an optical disk, and an objective-lens driving device for driving the objective-lens in a focusing direction and a tracking direction. The objective-lens driving device includes a focusing coil having four edges to enclose the objective-lens, and two pairs of permanent magnets. The two pairs of permanent magnets are arranged so that polarities thereof become identical to sides of focusing coil, wherein one pair of the permanent magnets is arranged opposed to an edge of the focusing coil, and an other pair of the permanent magnets is arranged opposed to an edge opposite to the edge of the focusing coil. An interval between two magnets constituting the one pair of permanent magnets is narrower than an interval between two magnets constituting the other pair of permanent magnets.Type: ApplicationFiled: February 12, 2007Publication date: June 21, 2007Inventors: Katsuhiko Kimura, Seiichi Katou, Hiroshi Ogasawara
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Patent number: 7219144Abstract: A disk array system in accordance with the present invention comprises: a plurality of storage devices in which data is stored; a storage device control unit that controls storage of data in the plurality of storage devices; a connection unit connected to the storage device control unit; a first communication control unit; and a management terminal. The first communication control unit is connected to the storage device control unit via the connection unit, and connected on a first network external to the own disk array system, and transfers file data over the first network. The first communication control unit transfers data to the connection unit, and reads information on a fault occurring in the own disk array system from the plurality of storage devices so as to transfer the information to the management terminal.Type: GrantFiled: December 29, 2003Date of Patent: May 15, 2007Assignee: Hitachi, Ltd.Inventors: Kunihito Matsuki, Yutaka Takata, Hiroshi Ogasawara, Naotaka Kobayashi
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Publication number: 20070079069Abstract: The present invention provides a storage unit system that can be connected to a plurality of different kinds of networks and a controlling method for a system LU of a storage device control unit required in such a storage unit system. In the storage unit system, to an LDEV of a storage device, it is possible to set a system LU for storing control information in the storage unit system itself and a user LU for writing write data sent from a host device, while a management terminal specifies a system LU or a user LU to set a path definition to the LDEV and a CHN inhibits an access to the system LU from the host device in accordance with distinction specified by the management terminal. Furthermore, a path of the system LU is automatically defined to a backup LU, so that the control information stored in the system LU is backed up to the backup LU.Type: ApplicationFiled: December 6, 2006Publication date: April 5, 2007Inventors: Hiroshi Ogasawara, Yoshinori Igarashi
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Method of controlling storage device controlling apparatus, and storage device controlling apparatus
Publication number: 20070061534Abstract: A storage device controlling apparatus includes: a plurality of channel controllers having a circuit board on which are formed a file access processing section receiving requests to input and output data in files as units from an information processing apparatus and an I/O processor outputting I/O requests corresponding to the requests to input and output data to a storage device; and a disk controller executing input and output of data into and from the storage device in response to the I/O requests sent from the I/O processors. In the storage device controlling apparatus, the disk controller performs a replication management processing whereby data is also written into a second logical volume to store a copy of the data in the second logical volume, when the data is written into a first logical volume.Type: ApplicationFiled: November 13, 2006Publication date: March 15, 2007Applicant: Hitachi, Ltd.Inventors: Yutaka Takata, Shinichi Nakayama, Hiroshi Ogasawara, Jinichi Shikawa, Nobuyuki Saika -
Patent number: 7181751Abstract: An objective-lens driving apparatus, includes an objective lens for converging light on a recording surface of an optical disk, a focusing coil having four edges for enclosing the objective lens, and two pairs of permanent magnets. The two pairs of permanent magnets are arranged so that polarities thereof are identical toward the focusing coil, with one pair of the permanent magnets arranged so as to be opposed to one edge of the focusing coil, and another pair of the permanent magnets arranged so as to be opposed to another edge of the focusing coil which is opposite to the one edge of focusing coil. An interval between two permanent magnets constituting the one pair of the permanent magnets is narrower than an interval between two permanent magnets constituting the another pair of the permanent magnets.Type: GrantFiled: September 5, 2006Date of Patent: February 20, 2007Assignees: Hitachi, Ltd., Hitachi Media Electronics Co., Ltd.Inventors: Katsuhiko Kimura, Seiichi Katou, Hiroshi Ogasawara
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Patent number: 7167068Abstract: A transformer has a bar-shaped ferrite core, an inner winding wound directly around the ferrite core, an outer winding wound over the inner winding, and a dielectric shield surrounding the outer winding. The outer winding has its circumference covered by a dielectric sheath, and has an intermediate winding portion between its winding start end and its winding stop end. The dielectric sheath in the intermediate winding portion is spaced from each other along the axis of the ferrite core to leave thereat a gap which is filled with a molding material. By provision of the gap between the dielectric sheath of the outer winding, the molding material forming the dielectric shield can be easy to flow in between the dielectric sheath of the outer winding and the inner winding, avoiding the void from appearing between the inner and outer windings for attaining stable electrical characteristic.Type: GrantFiled: August 13, 2003Date of Patent: January 23, 2007Assignee: Matsushita Electric Works, Ltd.Inventors: Tomoyuki Nakano, Kazuhiko Kinutani, Hiroshi Ogasawara, Mizuto Ida, Yoshiharu Nakamura
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Publication number: 20070006246Abstract: An objective-lens driving apparatus, includes an objective lens for converging light on a recording surface of an optical disk, a focusing coil having four edges for enclosing the objective lens, and two pairs of permanent magnets. The two pairs of permanent magnets are arranged so that polarities thereof are identical toward the focusing coil, with one pair of the permanent magnets arranged so as to be opposed to one edge of the focusing coil, and another pair of the permanent magnets arranged so as to be opposed to another edge of the focusing coil which is opposite to the one edge of focusing coil. An interval between two permanent magnets constituting the one pair of the permanent magnets is narrower than an interval between two permanent magnets constituting the another pair of the permanent magnets.Type: ApplicationFiled: September 5, 2006Publication date: January 4, 2007Inventors: Katsuhiko Kimura, Seiichi Katou, Hiroshi Ogasawara
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Method of controlling storage device controlling apparatus, and storage device controlling apparatus
Patent number: 7155595Abstract: A storage device controlling apparatus includes: a plurality of channel controllers having a circuit board on which are formed a file access processing section receiving requests to input and output data in files as units from an information processing apparatus and an I/O processor outputting I/O requests corresponding to the requests to input and output data to a storage device; and a disk controller executing input and output of data into and from the storage device in response to the I/O requests sent from the I/O processors. In the storage device controlling apparatus, the disk controller performs a replication management processing whereby data is also written into a second logical volume to store a copy of the data in the second logical volume, when the data is written into a first logical volume.Type: GrantFiled: January 13, 2004Date of Patent: December 26, 2006Assignee: Hitachi, Ltd.Inventors: Yutaka Takata, Shinichi Nakayama, Hiroshi Ogasawara, Jinichi Shikawa, Nobuyuki Saika -
Patent number: 7149861Abstract: The present invention provides a storage unit system that can be connected to a plurality of different kinds of networks and a controlling method for a system LU of a storage device control unit required in such a storage unit system. In the storage unit system, to an LDEV of a storage device, it is possible to set a system LU for storing control information in the storage unit system itself and a user LU for writing write data sent from a host device, while a management terminal specifies a system LU or a user LU to set a path definition to the LDEV and a CHN inhibits an access to the system LU from the host device in accordance with distinction specified by the management terminal. Furthermore, a path of the system LU is automatically defined to a backup LU, so that the control information stored in the system LU is backed up to the backup LU.Type: GrantFiled: August 5, 2004Date of Patent: December 12, 2006Assignee: Hitachi, Ltd.Inventors: Hiroshi Ogasawara, Yoshinori Igarashi
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Publication number: 20060230227Abstract: A disk array system includes storage devices, a storage device control unit, a connection unit being connected with the storage device control unit, channel control units, a shared memory, and a cache memory. Each channel control unit includes a first processor of converting file data, received through a local area network outside of the disk array system to which the channel control units belongs, into block data and requesting storage of the converted data in the plurality of storage devices and a second processor of transferring the block data to the storage devices through the connection unit and the storage device control unit in response to a request given from the first processor and is connected with the connection unit and the local area network.Type: ApplicationFiled: June 8, 2006Publication date: October 12, 2006Inventors: Hiroshi Ogasawara, Homare Kanie, Nobuyuki Saika, Yutaka Takata, Shinichi Nakayama
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Patent number: 7107602Abstract: An objective-lens driving apparatus includes permanent magnets on both ends of the movable unit, simultaneously, on the other side of the movable unit parallel to the tracking direction, also a permanent magnet at a position closer to the center of the movable unit. This configuration makes it possible to reduce each moment generated at each of a focusing coil and a tracking coil when an objective lens is displaced.Type: GrantFiled: November 18, 2003Date of Patent: September 12, 2006Assignees: Hitachi, Ltd., Hitachi Media Electronics Co., Ltd.Inventors: Katsuhiko Kimura, Seiichi Katou, Hiroshi Ogasawara
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Patent number: 7099996Abstract: A disk array system includes storage devices, a storage device control unit, a connection unit being connected with the storage device control unit, channel control units, a shared memory, and a cache memory. Each channel control unit includes a first processor of converting file data, received through a local area network outside of the disk array system to which the channel control units belongs, into block data and requesting storage of the converted data in the plurality of storage devices and a second processor of transferring the block data to the storage devices through the connection unit and the storage device control unit in response to a request given from the first processor and is connected with the connection unit and the local area network.Type: GrantFiled: February 1, 2005Date of Patent: August 29, 2006Assignee: Hitachi, Ltd.Inventors: Hiroshi Ogasawara, Homare Kanie, Nobuyuki Saika, Yutaka Takata, Shinichi Nakayama