Patents by Inventor Kazuo Hakamata
Kazuo Hakamata 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: 8929018Abstract: A disk array unit connected to a host unit to give information thereto and receive information therefrom. The disk unit includes a plurality of disk units for storing information transmitted from the host unit and a management information recording device, formed by utilizing information storage areas in the disk units, for causing information relating to a logical unit for storing information from the host unit to correspond to information relating to the units. The invention further includes a control unit, when there is no access from the host unit to the logical unit for a predetermined time, for determining the disk units corresponding to the logical unit based on information recorded in the management information recording device and performing power saving of power supply for the disk units.Type: GrantFiled: May 29, 2012Date of Patent: January 6, 2015Assignee: Hitachi, Ltd.Inventors: Kazuo Hakamata, Kenichi Takamoto, Masaaki Kobayashi
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Patent number: 8612776Abstract: A storage control apparatus stores a device attribute that indicates whether a physical storage device that is made to be a basis of a pool of a creation target is an encryption device (a physical storage device that is provided with an encryption function) or an unencryption device (a physical storage device that is not provided with an encryption function) as a pool attribute for the pool. In the case in which a pool attribute that has been stored for a pool with which a virtual volume that is a virtual logical volume of a creation target is associated indicates both of an encryption and an unencryption, the storage control apparatus associates the virtual volume of a creation target with a physical storage device that conforms to an attribute that has been specified as a volume attribute of the virtual volume of a creation target among an encryption device and an unencryption device that are a basis of a pool of the associated destination.Type: GrantFiled: January 13, 2011Date of Patent: December 17, 2013Assignee: Hitachi, Ltd.Inventors: Kazuo Hakamata, Tetsuya Shirogane
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Patent number: 8402211Abstract: Times at which requests for a data read or data write from/to a logical volume are received are stored in memory as access times of a RAID group making up the logical volume. When a predetermined time has elapsed after the access time, a number of the hard disk drives according to the redundancy of the RAID group are set to a power saving mode. Assume there are first hard disk drives and second hard disk drives having shorter lifes and the RAID group exceeds a predetermined time after the access time. When the RAID group consists of only the first drives, a number of the first drives according to the redundancy of the RAID group are set to a power saving mode and when it consists of only the second drives, an arbitrary number of second drives are set to a power saving mode.Type: GrantFiled: August 24, 2007Date of Patent: March 19, 2013Assignee: Hitachi, Ltd.Inventors: Takashi Yamazaki, Kazuo Hakamata, Azuma Kano
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Patent number: 8294113Abstract: An image detecting device includes an image detector, a temperature regulation controller, an image information output detector, and a timer, wherein the temperature regulation controller stops or relaxes the temperature regulation control operation on the image detector based on the image information output detection signal input thereto from the image information output detector, and resumes or stops relaxing the temperature regulation control operation on the image detector when the timer has measured a preset period of time after the temperature regulation control operation has been stopped or relaxed.Type: GrantFiled: December 16, 2008Date of Patent: October 23, 2012Assignee: FUJIFILM CorporationInventors: Hajime Nakata, Kuniaki Miyako, Kazuo Hakamata, Yasunori Ohta
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Publication number: 20120233400Abstract: A disk array unit connected to a host unit to give information thereto and receive information therefrom. The disk unit includes a plurality of disk units for storing information transmitted from the host unit and a management information recording device, formed by utilizing information storage areas in the disk units, for causing information relating to a logical unit for storing information from the host unit to correspond to information relating to the units. The invention further includes a control unit, when there is no access from the host unit to the logical unit for a predetermined time, for determining the disk units corresponding to the logical unit based on information recorded in the management information recording device and performing power saving of power supply for the disk units.Type: ApplicationFiled: May 29, 2012Publication date: September 13, 2012Applicant: HITACHI, LTD.Inventors: Kazuo Hakamata, Kenichi Takamoto, Masaaki Kobayashi
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Publication number: 20120185702Abstract: A storage control apparatus stores a device attribute that indicates whether a physical storage device that is made to be a basis of a pool of a creation target is an encryption device (a physical storage device that is provided with an encryption function) or an unencryption device (a physical storage device that is not provided with an encryption function) as a pool attribute for the pool. In the case in which a pool attribute that has been stored for a pool with which a virtual volume that is a virtual logical volume of a creation target is associated indicates both of an encryption and an unencryption, the storage control apparatus associates the virtual volume of a creation target with a physical storage device that conforms to an attribute that has been specified as a volume attribute of the virtual volume of a creation target among an encryption device and an unencryption device that are a basis of a pool of the associated destination.Type: ApplicationFiled: January 13, 2011Publication date: July 19, 2012Inventors: Kazuo Hakamata, Tetsuya Shirogane
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Patent number: 8222612Abstract: The present invention relates to a radiation image capturing apparatus, and includes a radiation image information detector for detecting radiation image information of a subject, a casing containing the radiation image information detector, a reading circuit for reading the radiation image information from the radiation image information detector, and a heat release unit for fastening the reading circuit and releasing heat generated by the reading circuit to the casing.Type: GrantFiled: September 26, 2008Date of Patent: July 17, 2012Assignee: FUJIFILM CorporationInventors: Yasunori Ohta, Kazuo Hakamata, Kuniaki Miyako, Hajime Nakata, Yuto Tanaka
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Patent number: 8161303Abstract: A storage apparatus includes plural trays each incorporating plural HDDs and a controller that controls access to the HDDs in response to an access request from a host apparatus. The controller also includes a table, in which standard power and a start-up power supply status are associated with each other for each of the trays, a table that manages total power required by the trays and present power consumed by the trays, and a table that defines maximum available power relative to the total power. The controller, when receiving a power-on setting request for a certain tray, judges whether or not the tray can be turned on based on the standard power for the tray and the present power, and the controller, upon determining that the tray can be turned on, turns on the tray.Type: GrantFiled: February 19, 2008Date of Patent: April 17, 2012Assignee: Hitachi, Ltd.Inventor: Kazuo Hakamata
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Patent number: 7928537Abstract: A functional device having, on a substrate, a pair of electrodes, a functional layer which is sandwiched between the electrodes and has an output that varies in accordance with an applied electric current, and a terminal arranged to apply an electric current to at least one of the electrodes, wherein an insulator is arranged between the electrodes and the density of the insulator decreases as the distance from the terminal increases, or wherein at least one of the electrodes has a notch section, and the ratio of the area of the notch section to the area of the electrode decreases as the distance from the terminal increases. This is an improved functional device which is excellent in production suitability and gives a uniform in-plane output, and can be rendered, in particular, an organic electroluminescence device.Type: GrantFiled: March 28, 2007Date of Patent: April 19, 2011Assignee: Fujifilm CorporationInventors: Toshiro Takahashi, Kazuo Hakamata
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Patent number: 7902514Abstract: An image detecting device (radiation solid-state detecting device) including an image detector (sensor substrate) for recording an image and outputting the recorded image as image information; a temperature regulation control unit for performing a temperature regulation control operation to adjust the image detector to a predetermined temperature; and an image information output detecting unit (timing control signal detector) for detecting the output of the image information from the image detector, and outputting the detected output as an image information output detection signal to the temperature regulation control unit, wherein the temperature regulation control unit halts the temperature regulation control operation on the image detector based on the image information output detection signal that is input thereto.Type: GrantFiled: December 23, 2008Date of Patent: March 8, 2011Assignee: Fujifilm CorporationInventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
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Patent number: 7897933Abstract: A radiation image capturing apparatus includes a cooling mechanism for causing cooling medium to flow from a rear surface side to a radiation detector to a front surface side of radiation detector through a narrow space formed between an end of the radiation detector and a casing for housing the radiation detector. It is therefore possible to cool the narrow space, as well as regions in the vicinity of the narrow space, with the cooling medium and to discharge the cooling medium from the front surface side of the radiation detector.Type: GrantFiled: September 19, 2008Date of Patent: March 1, 2011Assignee: Fujifilm CorporationInventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
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Patent number: 7893403Abstract: The invention relates to a radiation image capturing apparatus that includes a signal reading circuit for reading an image signal from a sensor substrate. The signal reading circuit includes a charge detecting circuit and a temperature sensor for detecting the temperature of the charge detecting circuit, and controls the gain of a variable gain amplifier of the charge detecting circuit based on the detected temperature.Type: GrantFiled: September 9, 2008Date of Patent: February 22, 2011Assignee: Fujifilm CorporationInventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
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Patent number: 7876876Abstract: A radiation image capturing apparatus includes a housing for housing a radiation detector. The housing has a wall inclined with respect to a detection surface of the radiation detector, and the wall defines a space inclined with respect to the detection surface. The space allows heat transfer medium such as air of relatively high temperatures (higher than that of outside air, for example) to rise along a slope defined by the space. If the region around the detection surface is heated to high temperatures, airflow is generated within the space, forcing the relatively high-temperature heat transfer medium away from the vicinity of the radiation detector, thereby allowing the whole radiation detector to be cooled in a uniform manner.Type: GrantFiled: September 24, 2008Date of Patent: January 25, 2011Assignee: Fujifilm CorporationInventors: Yasunori Ohta, Kuniaki Miyako, Kazuo Hakamata, Hajime Nakata
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Patent number: 7839968Abstract: An image capturing base that contains a radiation detector includes a housing having a slit serving as an air inlet port formed in the front end side of the housing, which is to be located adjacent to the chest wall of a subject, and a slit serving as an air outlet port formed in the rear end side of the housing adjacent to a pivot shaft. A fan forces air to flow into the housing through the slit, along a detection surface of the radiation detector in a direction from the front end side toward the rear end side, and out of the housing through the slit.Type: GrantFiled: September 18, 2008Date of Patent: November 23, 2010Assignee: Fujifilm CorporationInventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
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Patent number: 7750307Abstract: A radiation image capturing apparatus includes a conductive gel member disposed between a radiation detector and an integrated circuit provided in vicinity of the radiation detector and electrically connected thereto. The conductive gel member blocks the electromagnetic noise generated by the integrated circuit and thereby prevents the electromagnetic noise from propagating to the radiation detector. As a result, the electrical signals generated by the radiation detector are prevented from being affected by the electromagnetic noise and high-quality radiation images can be acquired.Type: GrantFiled: September 26, 2008Date of Patent: July 6, 2010Assignee: FUJIFILM CorporationInventors: Kazuo Hakamata, Hajime Nakata, Kuniaki Miyako, Yasunori Ohta, Yuto Tanaka
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Patent number: 7745806Abstract: A solid-state radiation detector with increased pixel density. The solid-state radiation detector includes multitudes of linear signal wires for detecting recorded image information as image signals, and a signal detection means disposed on an opposing side of the detector substantially orthogonal to the linear signal wires, and connected to the linear signal wires to detect the image signals from the linear signal wires. A connection section of each of the linear signal wires, extending substantially orthogonal to the opposing side, for connection to the signal detection means is disposed such that the distance from the opposing side to each of the connection sections differs with each other.Type: GrantFiled: July 9, 2007Date of Patent: June 29, 2010Assignee: FUJIFILM CorporationInventors: Kazuo Hakamata, Yuichi Hosoi, Kenji Matsumoto
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Patent number: 7714296Abstract: A radiation solid-state detecting device includes a cooling panel disposed on a surface of a sensor substrate that is irradiated with radiation, or on a rear surface of the sensor substrate opposite to the irradiated surface thereof. The cooling panel comprises a plurality of cooling units. Cooling units, which face (pixels depending on) the recording areas in which radiation image information is recorded in the sensor substrate, are energized to cool the recording areas.Type: GrantFiled: September 26, 2008Date of Patent: May 11, 2010Assignee: FUJIFILM CorporationInventors: Yasunori Ohta, Kazuo Hakamata, Kuniaki Miyako, Hajime Nakata, Yuto Tanaka
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Patent number: 7714295Abstract: An image detecting device includes an image detector for recording an image therein and outputting the recorded image as image information, and a cooling panel disposed on a surface of the image detector for cooling the image detector, wherein the cooling panel has a thermal conductivity oriented in a planar direction along the surface of the image detector.Type: GrantFiled: September 26, 2008Date of Patent: May 11, 2010Assignee: FUJIFILM CorporationInventors: Yasunori Ohta, Kazuo Hakamata, Kuniaki Miyako, Hajime Nakata, Yuto Tanaka
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Publication number: 20090231750Abstract: A disk array unit connected to a host unit to give information thereto and receive information therefrom. The disk unit includes a plurality of disk units for storing information transmitted from the host unit and a management information recording device, formed by utilizing information storage areas in the disk units, for causing information relating to a logical unit for storing information from the host unit to correspond to information relating to the units. The invention further includes a control unit, when there is no access from the host unit to the logical unit for a predetermined time, for determining the disk units corresponding to the logical unit based on information recorded in the management information recording device and performing power saving of power supply for the disk units.Type: ApplicationFiled: May 28, 2009Publication date: September 17, 2009Applicant: HITACHI, LTD.Inventors: Kazuo Hakamata, Kenichi Takamoto, Masaaki Kobayashi
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Patent number: 7554758Abstract: A disk array unit connected to a host unit to give information thereto and receive information therefrom. The disk unit includes a plurality of disk units for storing information transmitted from the host unit and a management information recording device, formed by utilizing information storage areas in the disk units, for causing information relating to a logical unit for storing information from the host unit to correspond to information relating to the units. The invention further includes a control unit, when there is no access from the host unit to the logical unit for a predetermined time, for determining the disk units corresponding to the logical unit based on information recorded in the management information recording device and performing power saving of power supply for the disk units.Type: GrantFiled: April 20, 2006Date of Patent: June 30, 2009Assignee: Hitachi, Ltd.Inventors: Kazuo Hakamata, Kenichi Takamoto, Masaaki Kobayashi