Patents by Inventor Yasuaki Nakamura
Yasuaki Nakamura 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: 7930502Abstract: A disk array apparatus capable of effecting saving and operation of data through a simple construction. When a host computer sets “write inhibit” or “read/write inhibit” for an LDEV which is set on a first storage device, this setting is registered in an access attribute management table and is also reflected onto a migration management table. A migration control program moves the LDEV for which access limitation has been set to a lower-speed (lower-performance) second storage device or to an external storage device. When the access limitation is released, the moved LDEV is restored to the first storage device from the storage device to which the LDEV has been moved. By performing migration control in interlocking relation to control of access attributes, it is possible to obtain a simple data saving function and data management function.Type: GrantFiled: January 6, 2010Date of Patent: April 19, 2011Assignee: Hitachi, Ltd.Inventors: Akinobu Shimada, Yasuaki Nakamura
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Patent number: 7922214Abstract: A connector structure securely connectable in a locked state and releasable by an easy operation, comprising a supplying connection part for supplying a fluid and receiving connection part for receiving the supply of fluid. The connector structure also comprises a securing mechanism having an operating member moving according to a connecting operation between the supplying connection part to the receiving connection part, holding the connected state of the supplying part to the receiving part in a securely locked state and releasing the locked state of the supplying part to the receiving part by movement of the operating member according to the next pressing-in operation of the supplying part and an energizing mechanism energizing the supplying part in the separating direction thereof from the receiving part. When in the locked state, the pressurized fluid can be supplied from the supplying connection part to the receiving connection part.Type: GrantFiled: September 12, 2005Date of Patent: April 12, 2011Inventors: Yasuaki Nakamura, Hideto Usui
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Publication number: 20110048553Abstract: A pressure regulator includes a housing having an inlet port through which pressurized fluid at a primary pressure is supplied, and a discharge port through which pressurized fluid at a secondary pressure lower than the primary pressure is discharged, and at the same time having a flow passage formed therein to extend from the inlet port to the discharge port, and a pressure control mechanism which is disposed on the flow passage to reduce the primary pressure to the secondary pressure. The pressure control mechanism includes a movable body including a diaphragm which is displaced in response to change in the pressure of the fluid and the movable body is provided with an abutment portion which is brought into abutment against a part of the housing to prevent the movable body from being excessively displaced when the primary pressure becomes excessively high.Type: ApplicationFiled: July 25, 2006Publication date: March 3, 2011Applicant: TOKAI CORPORATIONInventors: Yasuaki Nakamura, Hideto Usui, Satoshi Kamiyama, Mitsuo Hirotomi
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Patent number: 7900000Abstract: A plurality of contents intrinsic values that are values intrinsic to respective contents of a plurality of files stored in one or more first storage devices are calculated. Whether two or more identical contents intrinsic values are contained among the plurality of contents intrinsic values is determined. When two or more identical contents intrinsic values are present, an access destination of a first file corresponding to a first contents intrinsic value from among these two or more contents intrinsic values is changed to a position having stored therein a second file corresponding to a second contents intrinsic value from among these two or more contents intrinsic values.Type: GrantFiled: January 11, 2008Date of Patent: March 1, 2011Assignee: Hitachi, Ltd.Inventors: Yasuaki Nakamura, Hideo Tabuchi
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Patent number: 7776487Abstract: A fuel supply system for a fuel cell supplies fuel to a fuel cell of an electronic equipment. The fuel supply system includes a pressure regulator for regulating primary pressure to secondary pressure, and a pair of cylindrical fuel cartridges which are connected to a pair of inlets on a primary pressure side. The inlets being provided to both sides of the pressure regulator are arranged in mutually opposite directions. Fuel having primary pressure is took in from the inlets into the pressure regulator. The fuel cartridges are placed to both sides of the pressure regulator along a substantially straight-outer edge of the electronic equipment.Type: GrantFiled: December 7, 2005Date of Patent: August 17, 2010Assignees: Hitachi, Ltd., Tokai CorporationInventors: Akira Tanaka, Osamu Kubota, Yasuaki Nakamura
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Patent number: 7766032Abstract: A fuel container for a fuel cell, comprises a container body, the container body having a liquid fuel chamber for the storage of liquid fuel and a discharge means accommodating chamber for accommodating means for discharging the liquid fuel, a valve disposed in the container body to discharge or shut off the liquid fuel, and a partition wall member disposed slidably in the interior of the container body, wherein the partition wall member partitions the interior of the container body into the liquid fuel chamber and the discharge means accommodating chamber, the liquid fuel chamber and the discharge means accommodating chamber are in communication with each other through the partition wall member, and at least one of sliding surfaces of the container body and the partition wall member contains a material of a low frictional coefficient.Type: GrantFiled: January 17, 2005Date of Patent: August 3, 2010Assignees: Hitachi, Ltd., Tokai CorporationInventors: Yasuaki Norimatsu, Tomoichi Kamo, Osamu Kubota, Yasuaki Nakamura
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Publication number: 20100126265Abstract: A residual liquid quantity detecting method capable of accurately detecting the residual quantity of liquid without relying upon visual observation, preventing overfill at the time of refilling. A residual liquid quantity detecting method for a liquid supply container (100) has a container body (108) having a liquid supply opening (126) and has a liquid storage chamber (118) in which liquid (119) is sealed, the liquid storage chamber (118) being formed in the container body (108) and communicating with the liquid supply opening (126). The liquid (119) is supplied from the liquid supply opening (126) to the outside of the container by primary supply pressure generated through reduction, by pressure, in volume of the liquid storage chamber (118). The residual quantity of the liquid (119) in the liquid storage chamber (118) is detected by detecting primary supply pressure of the liquid (119).Type: ApplicationFiled: January 29, 2010Publication date: May 27, 2010Inventor: Yasuaki Nakamura
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Publication number: 20100115199Abstract: A disk array apparatus capable of effecting saving and operation of data through a simple construction. When a host computer sets “write inhibit” or “read/write inhibit” for an LDEV which is set on a first storage device, this setting is registered in an access attribute management table and is also reflected onto a migration management table. A migration control program moves the LDEV for which access limitation has been set to a lower-speed (lower-performance) second storage device or to an external storage device. When the access limitation is released, the moved LDEV is restored to the first storage device from the storage device to which the LDEV has been moved. By performing migration control in interlocking relation to control of access attributes, it is possible to obtain a simple data saving function and data management function.Type: ApplicationFiled: January 6, 2010Publication date: May 6, 2010Inventors: Akinobu Shimada, Yasuaki Nakamura
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Publication number: 20100092600Abstract: A blow molding device capable of securely holding a built-in part in a prescribed position in an interior of a blow molded article with a compact equipment. The blow molding device includes a blow mold and a built-in part holding unit. The built-in part holding unit includes a holding rod adapted to hold the built-in part and arranged to freely advance and retreat to be removed from the blow mold. The blow mold includes a slide core in each of two mold members so as to freely advance and retreat relative to a cavity of the blow mold, and a drive control pin in each of mating faces of split two mold members, and the drive control pin and the slide core are linked with a linking member. The slide core is driven with the drive control pin such that when the blow mold is closed, the slide core retreats from an interior of the cavity to a molding surface defining the same at the same speed as the closing speed of the blow mold.Type: ApplicationFiled: September 24, 2009Publication date: April 15, 2010Applicant: FTS CO., LTD.Inventors: Soji Hamaji, Yasuaki Nakamura, Yuji Shimizu
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Patent number: 7658103Abstract: A residual liquid quantity detecting method capable of accurately detecting the residual quantity of liquid without relying upon visual observation, preventing overfill at the time of refilling. A residual liquid quantity detecting method for a liquid supply container (100) has a container body (108) having a liquid supply opening (126) and has a liquid storage chamber (118) in which liquid (119) is sealed, the liquid storage chamber (118) being formed in the container body (108) and communicating with the liquid supply opening (126). The liquid (119) is supplied from the liquid supply opening (126) to the outside of the container by primary supply pressure generated through reduction, by pressure, in volume of the liquid storage chamber (118). The residual quantity of the liquid (119) in the liquid storage chamber (118) is detected by detecting primary supply pressure of the liquid (119).Type: GrantFiled: October 27, 2005Date of Patent: February 9, 2010Inventor: Yasuaki Nakamura
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Patent number: 7653792Abstract: A disk array apparatus capable of effecting saving and operation of data through a simple construction. When a host computer sets “write inhibit” or “read/write inhibit” for an LDEV which is set on a first storage device, this setting is registered in an access attribute management table and is also reflected onto a migration management table. A migration control program moves the LDEV for which access limitation has been set to a lower-speed (lower-performance) second storage device or to an external storage device. When the access limitation is released, the moved LDEV is restored to the first storage device from the storage device to which the LDEV has been moved. By performing migration control in interlocking relation to control of access attributes, it is possible to obtain a simple data saving function and data management function.Type: GrantFiled: January 10, 2006Date of Patent: January 26, 2010Assignee: Hitachi, Ltd.Inventors: Akinobu Shimada, Yasuaki Nakamura
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Publication number: 20090214287Abstract: A connector structure securely connectable in a locked state and releasable by an easy operation, comprising a supplying connection part for supplying a fluid and receiving connection part for receiving the supply of fluid. The connector structure also comprises a securing mechanism having an operating member moving according to a connecting operation between the supplying connection part to the receiving connection part, holding the connected state of the supplying part to the receiving part in a securely locked state and releasing the locked state of the supplying part to the receiving part by movement of the operating member according to the next pressing-in operation of the supplying part and an energizing mechanism energizing the supplying part in the separating direction thereof from the receiving part. When in the locked state, the pressurized fluid can be supplied from the supplying connection part to the receiving connection part.Type: ApplicationFiled: September 12, 2005Publication date: August 27, 2009Inventors: Hideto Usui, Yasuaki Nakamura
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Publication number: 20090208811Abstract: The problem to solve is providing a fuel-cell cartridge connector that protects the fuel-cell-holding appliance from damage when a external force which exceeds the allowable range, is applied to the fuel cell cartridge.Type: ApplicationFiled: June 6, 2007Publication date: August 20, 2009Inventor: Yasuaki Nakamura
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Publication number: 20090169960Abstract: A flow rate regulation filter provided in a discharge flow path of a fuel container for a fuel cell. The fuel container receives liquid contents of a liquid fuel for a fuel cell such that the contents can be discharged as a liquid or a gas, and the flow rate regulation filter regulates the amount of discharge of the liquid contents. The flow rate regulation filter comprises an elastic body having continuous bubbles and a holder constructed from a formed body fusion-bonded to the elastic body and fixing the elastic body so that the elastic body closes the discharge flow path, and the elastic body and the holder are formed of a thermoplastic resin not corroded by the liquid contents. The discharge flow rate of the contents in the fuel container for a fuel cell can be regulated without requiring a major construction such as a liquid amount regulation mechanism.Type: ApplicationFiled: March 16, 2005Publication date: July 2, 2009Inventor: Yasuaki Nakamura
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Publication number: 20090151797Abstract: The present invention discloses a pressure regulator comprising: a housing having an inlet opening for the supply of pressurized fluid under primary pressure from a pressurized fluid source and an outlet opening for discharging the pressurized fluid under a secondary reduced pressure, a channel between the aforementioned inlet opening and outlet opening; and a pressure-regulating mechanism for reducing the aforementioned primary pressure to the aforementioned secondary pressure. The pressure regulator's pressure-regulating mechanism has a movable body that comprises a diaphragm which is displaceable in response to pressure fluctuations, the inlet opening and the movable body being in line with each other in the direction substantially perpendicular to the direction of the diaphragm displacement.Type: ApplicationFiled: August 25, 2006Publication date: June 18, 2009Inventors: Yasuaki Nakamura, Hideto usui
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Publication number: 20090155669Abstract: To reduce leakage of fuel from a fuel cartridge during connection to and disconnection from a fuel-cell connector. A fuel-cell connector for releasable connection to a fuel cartridge has a cartridge-side connection element with a cartridge-side valve that opens or closes a fuel-supply opening. A fuel-cell connector has a connector-side valve that opens and closes a fuel-receiving opening and moves, during the first insertion stage, together with the cartridge-side valve, and a resilient element for resisting movement in the insertion direction of a connector body unit into which the cartridge-side connection element is telescopically inserted. The connector body unit has on its outer periphery engagement means for engagement with the cartridge-side connection element and a stationary mechanism part for attachment to the fuel-cell-using device.Type: ApplicationFiled: May 2, 2007Publication date: June 18, 2009Inventors: Yasuaki Nakamura, Minoru Kanno
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Patent number: 7530367Abstract: A main valve reduces an unregulated pressure of a high-pressure gas to a regulated pressure by being interlocked with a diaphragm, which receives the regulated pressure within a pressure regulating chamber and is displaced. A subsidiary valve is interlocked with the main valve through a plunger and reduces the unregulated pressure of the high-pressure gas to the regulated pressure. The subsidiary valve is located such that the force, which accompanies a pressure loss occurring at the subsidiary valve and which the subsidiary valve receives, cancels the force, which accompanies the pressure loss occurring at the main valve and acts upon the plunger. An adjustor adjusts a pressure loss value occurring at the subsidiary valve so as to be equal to the pressure loss value occurring at the main valve.Type: GrantFiled: January 23, 2007Date of Patent: May 12, 2009Inventor: Yasuaki Nakamura
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Publication number: 20090056421Abstract: A residual liquid quantity detecting method capable of accurately detecting the residual quantity of liquid without relying upon visual observation, preventing overfill at the time of refilling. A residual liquid quantity detecting method for a liquid supply container (100) has a container body (108) having a liquid supply opening (126) and has a liquid storage chamber (118) in which liquid (119) is sealed, the liquid storage chamber (118) being formed in the container body (108) and communicating with the liquid supply opening (126). The liquid (119) is supplied from the liquid supply opening (126) to the outside of the container by primary supply pressure generated through reduction, by pressure, in volume of the liquid storage chamber (118). The residual quantity of the liquid (119) in the liquid storage chamber (118) is detected by detecting primary supply pressure of the liquid (119).Type: ApplicationFiled: October 27, 2005Publication date: March 5, 2009Inventor: Yasuaki Nakamura
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Publication number: 20080314462Abstract: A pressure regulator, comprising a pressure regulating mechanism and a connector. A supply connecting tool (3) supplying a pressurized fluid to a body part (11) with the built-in pressure regulating mechanism (5) is connected to the connector (2) to secure excellent pressure regulating function by preventing the pressure regulating function from being affected by the connecting operation of the connecting tool and supply a fluid to stop the reverse flow of fluid caused by the attaching/detaching operations of the connecting tool. The connector (2) comprises a link member (544) openably operating a valve mechanism (6) according to the connecting operation of the supply connecting tool (3). The pressure regulating mechanism (5) comprises a pressure regulating valve (55) operated according to the deviation of a diaphragm (52) to regulate the pressurized fluid to a secondary pressure. The link member (544) is formed separately from the pressure regulating valve (55).Type: ApplicationFiled: September 12, 2005Publication date: December 25, 2008Inventors: Yasuaki Nakamura, Hideto Usui, Satoshi Komiyama, Mitsuo Hirotomi
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Publication number: 20080241631Abstract: A fuel container for a fuel cell, comprises a container body, the container body having a liquid fuel chamber for the storage of liquid fuel and a discharge means accommodating chamber for accommodating means for discharging the liquid fuel, a valve disposed in the container body to discharge or shut off the liquid fuel, and a partition wall member disposed slidably in the interior of the container body, wherein the partition wall member partitions the interior of the container body into the liquid fuel chamber and the discharge means accommodating chamber, the liquid fuel chamber and the discharge means accommodating chamber are in communication with each other through the partition wall member, and at least one of sliding surfaces of the container body and the partition wall member contains a material of a low frictional coefficient.Type: ApplicationFiled: January 17, 2005Publication date: October 2, 2008Inventors: Yasuaki Norimatsu, Tomoichi Kamo, Osamu Kubota, Yasuaki Nakamura