Patents by Inventor Tadakatsu Nakajima
Tadakatsu Nakajima 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).
-
Patent number: 9389664Abstract: Total power consumption of information-processing devices and power supply/cooling facilities is reduced to realize energy saving operation of information-processing system. The information-processing system includes information-processing devices, power supply facilities, cooling facilities and an operations management device. The operations management device is connected to the devices and the facilities and includes layout information constituted of locations and operating information of the devices and locations and environmental information of the facilities. Also, the operations management device obtains the power consumption of the devices, the power supply loss of the power supply facilities and the cooling power of the cooling facilities by using the layout information, and then allocates the workloads to the devices so as to reduce the total sum of power consumption, supply loss and cooling power.Type: GrantFiled: September 2, 2015Date of Patent: July 12, 2016Assignee: Hitachi, Ltd.Inventors: Takeshi Kato, Tadakatsu Nakajima, Tatsuya Saito, Jun Okitsu, Yoko Shiga, Yoshio Miki
-
Publication number: 20150378414Abstract: Total power consumption of information-processing devices and power supply/cooling facilities is reduced to realize energy saving operation of information-processing system. The information-processing system includes information-processing devices, power supply facilities, cooling facilities and an operations management device. The operations management device is connected to the devices and the facilities and includes layout information constituted of locations and operating information of the devices and locations and environmental information of the facilities. Also, the operations management device obtains the power consumption of the devices, the power supply loss of the power supply facilities and the cooling power of the cooling facilities by using the layout information, and then allocates the workloads to the devices so as to reduce the total sum of power consumption, supply loss and cooling power.Type: ApplicationFiled: September 2, 2015Publication date: December 31, 2015Inventors: Takeshi KATO, Tadakatsu NAKAJIMA, Tatsuya SAITO, Jun OKITSU, Yoko SHIGA, Yoshio MIKI
-
Patent number: 9128704Abstract: Total power consumption of information-processing devices and power supply/cooling facilities is reduced to realize energy saving operation of information-processing system. The information-processing system includes information-processing devices, power supply facilities, cooling facilities and an operations management device. The operations management device is connected to the devices and the facilities and includes layout information constituted of locations and operating information of the devices and locations and environmental information of the facilities. Also, the operations management device obtains the power consumption of the devices, the power supply loss of the power supply facilities and the cooling power of the cooling facilities by using the layout information, and then allocates the workloads to the devices so as to reduce the total sum of power consumption, supply loss and cooling power.Type: GrantFiled: January 12, 2009Date of Patent: September 8, 2015Assignee: Hitachi, Ltd.Inventors: Takeshi Kato, Tadakatsu Nakajima, Tatsuya Saito, Jun Okitsu, Yoko Shiga, Yoshio Miki
-
Patent number: 8650420Abstract: In an information processing system comprising an information processing equipment group and a facility equipment group, both an increase in performance and a reduction in power consumption are obtained, thereby achieving an efficient and flexible operational management. The plurality of information processing equipments are divided into a plurality of groups, each of which includes power feed equipments and cooling equipments.Type: GrantFiled: September 9, 2009Date of Patent: February 11, 2014Assignee: Hitachi, Ltd.Inventors: Takeshi Kato, Tatsuya Saito, Jun Okitsu, Yoko Shiga, Tadakatsu Nakajima, Yoshihiro Kondo
-
Patent number: 8473108Abstract: An air conditioner that cools inside a room wherein a plurality of server apparatuses is arranged, is driven with high efficiency.Type: GrantFiled: November 9, 2010Date of Patent: June 25, 2013Assignee: Hitachi, Ltd.Inventors: Jun Mizuno, Kiyokazu Saigo, Tadakatsu Nakajima, Jun Okitsu
-
Patent number: 8429434Abstract: Arrangements reducing power consumption of an air conditioner and a storage device. A control method with a management server apparatus for a plurality of storage devices and an air conditioner includes calculating plural combinations of allocating the work amount to the plurality of storage devices, calculating the heating value of each storage device included in the plurality of storage devices for each of the plural combinations, calculating the quantity of heat conducted to the air conditioner, based on the heating value and positional information of the plurality of storage devices and the air conditioner, calculating the power consumption to cool the quantity of heat conducted to the air conditioner, selecting a combination included in the plural combinations based on the power consumption of the air conditioner, and issuing a move of the data stored in a first storage device to a second storage device, based on the selected combination.Type: GrantFiled: January 29, 2009Date of Patent: April 23, 2013Assignee: Hitachi, Ltd.Inventors: Shinichi Hayashi, Yuichi Taguchi, Katsumi Ouchi, Yoko Shiga, Takeshi Kato, Jun Okitsu, Tadakatsu Nakajima
-
Patent number: 8397089Abstract: Arrangements reducing power consumption of an air conditioner and a storage device. A control method with a management server apparatus for a plurality of storage devices and an air conditioner includes calculating plural combinations of allocating the work amount to the plurality of storage devices, calculating the heating value of each storage device included in the plurality of storage devices for each of the plural combinations, calculating the quantity of heat conducted to the air conditioner, based on the heating value and positional information of the plurality of storage devices and the air conditioner, calculating the power consumption to cool the quantity of heat conducted to the air conditioner, selecting a combination included in the plural combinations based on the power consumption of the air conditioner, and issuing a move of the data stored in a first storage device to a second storage device, based on the selected combination.Type: GrantFiled: May 15, 2012Date of Patent: March 12, 2013Assignee: Hitachi, Ltd.Inventors: Shinichi Hayashi, Yuichi Taguchi, Katsumi Ouchi, Yoko Shiga, Takeshi Kato, Jun Okitsu, Tadakatsu Nakajima
-
Patent number: 8345425Abstract: A cooling system for cooling a CPU 200 mounted on a printed circuit board 100 within a housing thereof, has a heat-receiving jacket 310, being thermally connected with a surface of the CPU generating heat therein, and for evaporating liquid refrigerant stored in a pressure-reduced inner space with heat generation thereof. A condenser 320 receives refrigerant vapor from the heat-receiving jacket for condensing the refrigerant vapor into a liquid by transferring the heat into an outside of the apparatus. A thermo siphon is used for circulating the refrigerant due to phase change thereof, and the condenser has fine grooves on an inner wall surface thereof along a direction of flow of the refrigerant, and is also formed flat in a cross-section thereof, for cooling the refrigerant vapor from the heat-receiving jacket on the inner wall surface thereof, efficiently.Type: GrantFiled: August 9, 2010Date of Patent: January 1, 2013Assignee: Hitachi, Ltd.Inventors: Hiroyuki Toyoda, Tadakatsu Nakajima, Yoshihiro Kondo, Shigeyuki Sasaki, Akio Idei, Shigemasa Satoh
-
Publication number: 20120226856Abstract: Arrangements reducing power consumption of an air conditioner and a storage device. A control method with a management server apparatus for a plurality of storage devices and an air conditioner includes calculating plural combinations of allocating the work amount to the plurality of storage devices, calculating the heating value of each storage device included in the plurality of storage devices for each of the plural combinations, calculating the quantity of heat conducted to the air conditioner, based on the heating value and positional information of the plurality of storage devices and the air conditioner, calculating the power consumption to cool the quantity of heat conducted to the air conditioner, selecting a combination included in the plural combinations based on the power consumption of the air conditioner, and issuing a move of the data stored in a first storage device to a second storage device, based on the selected combination.Type: ApplicationFiled: May 15, 2012Publication date: September 6, 2012Inventors: Shinichi HAYASHI, Yuichi TAGUCHI, Katsumi OUCHI, Yoko SHIGA, Tekeshi KATO, Jun OKITSU, Tadakatsu NAKAJIMA
-
Publication number: 20120198253Abstract: In an information processing system comprising an information processing equipment group and a facility equipment group, both an increase in performance and a reduction in power consumption are obtained, thereby achieving an efficient and flexible operational management. The plurality of information processing equipments are divided into a plurality of groups, each of which includes power feed equipments and cooling equipments.Type: ApplicationFiled: September 9, 2009Publication date: August 2, 2012Inventors: Takeshi Kato, Tatsuya Saito, Jun Okitsu, Yoko Shiga, Tadakatsu Nakajima, Yoshihiro Kondo
-
Patent number: 8200995Abstract: A technique for determining task allocation for reducing power consumption of an entire system is disclosed. This system includes physical computers, a cooling apparatus for cooling the physical computers, and a power-saving control server for controlling the physical computers and cooling apparatus. The power-saving control server includes a virtual server layout generator which sets up a plurality of sets of task allocations with respect to the physical computers, a server power calculator for calculating power consumption of the physical computers in each task allocation, a physical computer profile used to estimate a heat release amount of the physical computers in each task allocation, a cooling power calculator which computes power consumption of the cooling apparatus, and a virtual server relocator which determines a task allocation with a total of calculated values of the server/cooling power calculators being minimized to be the optimum task allocation for the physical computers.Type: GrantFiled: February 19, 2009Date of Patent: June 12, 2012Assignee: Hitachi, Ltd.Inventors: Yoko Shiga, Keisuke Hatasaki, Yoshifumi Takamoto, Takeshi Kato, Tadakatsu Nakajima
-
Publication number: 20120116595Abstract: An air conditioner that cools inside a room wherein a plurality of server apparatuses is arranged, is driven with high efficiency.Type: ApplicationFiled: November 9, 2010Publication date: May 10, 2012Applicant: HITACHI, LTD.Inventors: Jun Mizuno, Kiyokazu Saigo, Tadakatsu Nakajima, Jun Okitsu
-
Patent number: 8164902Abstract: An electronic apparatus, such as a blade server or the like, has a cooling system for efficiently cooling a plurality of heat generating semiconductor devices, such as a CPU, mounted on blades which is freely put on and taken off. The cooling system includes a thermosiphon which transfers heat from devices having relatively high heat generation, such as CPU or the like, to the outside of the apparatus, heat pipes which transfer heat of devices having relatively low heat generation to the thermosiphon, a thermal highway which is thermally coupled to the thermosiphon by the mounting of blades into a housing and collects and transfers the heat from the thermosiphon and the heat pipes, and a condenser which transfers the heat collected and transferred by the thermal highway outside a housing.Type: GrantFiled: August 19, 2009Date of Patent: April 24, 2012Assignees: Hitachi, Ltd., Hitachi Plant Technologies, Ltd.Inventors: Hitoshi Matsushima, Tadakatsu Nakajima, Takayuki Atarashi, Yoshihiro Kondo, Hiroyuki Toyoda, Tomoo Hayashi, Akio Idei, Shigeyasu Tsubaki, Takumi Sugiura, Yasuhiro Kashirajima
-
Patent number: 8155793Abstract: The present invention relates to a system and method for controlling air conditioning facilities, and a system and method for power management of a computer room. In an air-conditioning facility control system of a computer room (cooling room) equipped with air-conditioning facilities for air-cooling the computer room in which a large number of information processing units are installed, an air-conditioner monitoring and controlling unit calculates a temperature sensitivity coefficient of each information processing unit, and that of each air conditioner, and then determines discharge air temperature of each air conditioner by use of the temperature sensitivity coefficients in such a manner that the sum of squares of a deviation of a change in discharge air temperature of each information processing unit becomes the smallest, and in such a manner that the sum total of the power consumption of the individual air conditioners becomes the smallest.Type: GrantFiled: August 19, 2009Date of Patent: April 10, 2012Assignee: Hitachi, Ltd.Inventors: Tadakatsu Nakajima, Takeshi Kato, Yoko Shiga, Hitoshi Matsushima
-
Patent number: 8145927Abstract: In a computer room including information processing devices and air conditioners, power saving of the computer room by means of optimization of workload allocation to the information processing devices is achieved in a short time. There, a coefficient of air conditioner performance with respect to the information processing device (device-specific COP) is calculated for each air conditioner. Further, a device-associated power consumption expression representing a total of device power and air conditioner power is created for each information processing device. Also, power consumption of the entire computer room is calculated from the device-associated power consumption expression of the information processing devices. Also, workload allocation is determined by using power saving performance evaluation indexes based on the device-associated power consumption expression of the information processing devices.Type: GrantFiled: March 9, 2009Date of Patent: March 27, 2012Assignee: Hitachi, Ltd.Inventors: Jun Okitsu, Takeshi Kato, Tatsuya Saito, Tadakatsu Nakajima
-
Patent number: 8130497Abstract: A server system with a cooling ability that can cope with an increase in the amount of heat generated by a CPU of a server module detachably mounted on a blade server. The server module includes an enclosure accommodating therein a motherboard on which a CPU, memory, and the like are mounted, and part of a boil cooling device for cooling heat generated by the CPU. A fan accommodated in a fan module is adapted to blow air into the server module through an opening of the server module enclosure. The boil cooling device includes a first heat transmission member disposed in the server module enclosure, a second heat transmission member disposed outside the server module enclosure, and a plurality of pipes connecting them. The first heat transmission member is a box body with an internal space for hermetically sealing a refrigerant therein, one external planar face of which is thermally connected to the CPU and the other external planar face of which is provided with a heat sink.Type: GrantFiled: November 18, 2009Date of Patent: March 6, 2012Assignee: Hitachi, Ltd.Inventors: Yoshihiro Kondo, Tadakatsu Nakajima, Akio Idei, Shigeyasu Tsubaki, Hiroyuki Toyoda, Tomoo Hayashi
-
Publication number: 20110113273Abstract: In a computer room including information processing devices and air conditioners, power saving of the computer room by means of optimization of workload allocation to the information processing devices is achieved in a short time. There, a coefficient of air conditioner performance with respect to the information processing device (device-specific COP) is calculated for each air conditioner. Further, a device-associated power consumption expression representing a total of device power and air conditioner power is created for each information processing device. Also, power consumption of the entire computer room is calculated from the device-associated power consumption expression of the information processing devices. Also, workload allocation is determined by using power saving performance evaluation indexes based on the device-associated power consumption expression of the information processing devices.Type: ApplicationFiled: March 9, 2009Publication date: May 12, 2011Applicant: HITACHI, LTD.Inventors: Jun Okitsu, Takeshi Kato, Tatsuya Saito, Tadakatsu Nakajima
-
Patent number: 7936560Abstract: A blade server including a cooling structure to be loaded with a CPU of high performance is provided. In order to enhance draining performance of a condensed working fluid which stays between fins, a vapor condensing pipe is used, in which grooves are formed in a direction substantially parallel direction with a pipe axis direction on the above described pipe inner surface, a section of a row of the above described fins is exposed on a side surface of the above described groove, the above described groove is disposed at a lower side in the vertical direction from the center line in the pipe axis direction of the vapor condensing pipe when the above described groove is installed in the above described vapor condensing pipe, and a wick with a wire space smaller than the fin space of the above described fin row is filled inside the above described groove.Type: GrantFiled: August 19, 2009Date of Patent: May 3, 2011Assignee: Hitachi, Ltd.Inventors: Hiroyuki Toyoda, Akio Idei, Shigeyasu Tsubaki, Tadakatsu Nakajima, Yoshihiro Kondo, Tomoo Hayashi
-
Patent number: 7903407Abstract: Temperature variation among electronic apparatuses installed in the data center is reduced, enhancement in reliability of the electronic apparatuses, and increase in service life are achieved, and efficient cooling of an electronic apparatus group is realized. Further, an electronic apparatus with low noise is provided. A front cover is provided on a front surface of an electronic apparatus, and a back cover is provided on a rear surface of it. A supplied air opening is formed at a lower side of the front cover, and an exhaust air opening is formed at an upper side of the back cover. The supplied air opening is connected to a blowing in opening from below the floor level, and the exhaust air opening is connected to a ceiling air duct. The ceiling air duct is provided with a heat exchanger, and indirect heat exchange is performed with external air.Type: GrantFiled: February 13, 2009Date of Patent: March 8, 2011Assignee: Hitachi, Ltd.Inventors: Hitoshi Matsushima, Hiroshi Fukuda, Tadakatsu Nakajima
-
Publication number: 20110048676Abstract: A cooling system applying a thermo siphon therein, being superior in energy saving and/or ecology, with an effective cooling, and also an electronic apparatus applying that therein, in particular, for cooling a CPU 200 mounted on a printed circuit board 100 within a housing thereof, comprises a heat-receiving jacket 310, being thermally connected with a surface of the CPU generating heats therein, and for evaporating liquid refrigerant stored in a pressure-reduced inner space with heat generation thereof, a condenser 320 for receiving refrigerant vapor from the heat-receiving jacket within a pressure-reduced inner space thereof and for condensing the refrigerant vapor into a liquid by transferring the heats into an outside of the apparatus, a vapor tube 331, and a liquid return tube 332, with applying the thermo siphon for circulating the refrigerant due to phase change thereof, wherein the condenser forms fine grooves on an inner wall surface thereof along a direction of flow of the refrigerant, and is alsoType: ApplicationFiled: August 9, 2010Publication date: March 3, 2011Applicant: HITACHI, LTD.Inventors: Hiroyuki TOYODA, Tadakatsu NAKAJIMA, Yoshihiro KONDO, Shigeyuki SASAKI, Akio IDEI, Shigemasa SATOH