Patents by Inventor Kouichi Kuramitsu
Kouichi Kuramitsu 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: 11747051Abstract: A cooling device includes a plurality of evaporators thermally coupled to a plurality of heat generating devices, respectively, a condenser coupled to the plurality of evaporators through a gas-phase pipe, a first tank coupled to the condenser through a liquid-phase pipe and configured to store a refrigerant therein, a second tank disposed at a position higher than the plurality of evaporators and configured to store the refrigerant therein, a plurality of distribution pipes each through which a corresponding evaporator of the plurality of evaporators is coupled to the second tank, a pump coupled to the first tank and the second tank through coupling pipes, respectively, and a bypass pipe through which the second tank is coupled to one of the first tank and the liquid-phase pipe.Type: GrantFiled: June 30, 2021Date of Patent: September 5, 2023Assignee: FUJITSU LIMITEDInventor: Kouichi Kuramitsu
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Publication number: 20220369506Abstract: An electronic equipment includes: a housing; a cold plate fixed to the housing, a cooling liquid flowing at an interior of the cold plate; a cage that is supported at the housing so as to be movable toward and away from the cold plate, an object of cooling being inserted into the cage; and an elastic member that pushes the cage toward a cold plate side, wherein the cold plate has a contact that is provided at a position of contacting the object of cooling in a state in which the object of cooling is inserted in the cage.Type: ApplicationFiled: February 9, 2022Publication date: November 17, 2022Applicant: FUJITSU LIMITEDInventors: Tsubasa Hashimoto, Kazuhiro Iino, Kouichi Kuramitsu
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Publication number: 20220074626Abstract: A cooling device includes a plurality of evaporators thermally coupled to a plurality of heat generating devices, respectively, a condenser coupled to the plurality of evaporators through a gas-phase pipe, a first tank coupled to the condenser through a liquid-phase pipe and configured to store a refrigerant therein, a second tank disposed at a position higher than the plurality of evaporators and configured to store the refrigerant therein, a plurality of distribution pipes each through which a corresponding evaporator of the plurality of evaporators is coupled to the second tank, a pump coupled to the first tank and the second tank through coupling pipes, respectively, and a bypass pipe through which the second tank is coupled to one of the first tank and the liquid-phase pipe.Type: ApplicationFiled: June 30, 2021Publication date: March 10, 2022Applicant: FUJITSU LIMITEDInventor: Kouichi Kuramitsu
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Publication number: 20180231295Abstract: An electronic apparatus includes a slot; a first electronic component which is inserted into the slot; a heat pipe coupled to the first electronic component; a first plate coupled to the heat pipe, and has a heat transferring face facing an insertion direction of the slot; a second plate which is provided in the slot, faces the first plate, and has a heat transferring face with which the first plate comes into contact; and a pipe coupled to the second plate, and in which refrigerant circulates.Type: ApplicationFiled: February 2, 2018Publication date: August 16, 2018Applicant: FUJITSU LIMITEDInventors: YUSUKE AKIYAMA, Akira Okada, Kouichi Kuramitsu, Hideaki MATSUMOTO
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Patent number: 9713283Abstract: An electronic apparatus includes a housing that includes an air inlet, and an air-intake duct section provided to supply air to the air inlet, and a filter housing that houses a filter provided to cover the air inlet, and moves toward the air-intake duct section in a thickness direction of the filter housing, to shift from a closed state in which the filter covers the air inlet to an open state in which the air inlet is uncovered.Type: GrantFiled: May 27, 2015Date of Patent: July 18, 2017Assignee: FUJITSU LIMITEDInventors: Yusuke Kira, Katsuki Matsunaga, Kazuhiro Iino, Kouichi Kuramitsu, Takashi Shirakami, Seiichiro Sato, Marco Scifoni
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Publication number: 20150373875Abstract: An electronic apparatus includes a housing that includes an air inlet, and an air-intake duct section provided to supply air to the air inlet, and a filter housing that houses a filter provided to cover the air inlet, and moves toward the air-intake duct section in a thickness direction of the filter housing, to shift from a closed state in which the filter covers the air inlet to an open state in which the air inlet is uncovered.Type: ApplicationFiled: May 27, 2015Publication date: December 24, 2015Applicant: Fujitsu LimitedInventors: Yusuke KIRA, Katsuki MATSUNAGA, Kazuhiro IINO, Kouichi KURAMITSU, Takashi SHIRAKAMI, Seiichiro SATO, Marco Scifoni
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Patent number: 9007764Abstract: There is provided an electric device configured to cool a plurality of plug-in units, the electric device including a plurality of slots, each slot configured to install a plug-in unit, a first fan configured to create a current of air for cooling the plug-in units, a first plug-in unit installed into a first slot, and a second plug-in unit including a second fan configured to create a current of air for cooling the first plug-in unit, the second plug-in unit being installed into a second slot adjacent to the first slot, arranged to a side of mounting component of the first plug-in unit.Type: GrantFiled: December 18, 2012Date of Patent: April 14, 2015Assignee: Fujitsu LimitedInventors: Minoru Fujii, Mitsuaki Hayashi, Kenji Joko, Osamu Saito, Wataru Takano, Takashi Shirakami, Kouichi Kuramitsu, Yusuke Kira
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Publication number: 20140133097Abstract: A cooling system includes: a cooling fan configured to take in air through an air filter and to send the air to one or more electronic components; one or more first temperature detectors configured to detect temperatures of the one or more electronic components; a revolution controller configured to control a number of revolutions of the cooling fan on basis of the temperatures detected by the one or more first temperature detectors; and a clogging detector configured to, when the number of revolutions of the cooling fan controlled by the revolution controller is greater than a reference number of revolutions of the cooling fan that makes the temperature of the one or more electronic components less than upper-limit temperatures of the one or more electronic components, detect a clogging condition for the air filter.Type: ApplicationFiled: October 31, 2013Publication date: May 15, 2014Applicant: FUJITSU LIMITEDInventors: Kouichi Kuramitsu, Kazuhiro IINO, Jyunichi ISHIWATARI, Hideki Kobayashi
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Patent number: 8647144Abstract: A plug of a connector includes plug-side electrode terminals arranged therein, the plug having a first engagement part on one end side in a direction of arrangement of the plug-side electrode terminals and a second engagement part on the other end side. A jack of the connector includes jack-side electrode terminals arranged therein, the jack having a third engagement part on one end side in a direction of arrangement of the jack-side electrode terminals and a fourth engagement part on the other end side. A guide member has a fifth engagement part and a sixth engagement part, the fifth engagement part configured to engage with the first engagement part of the plug and the third engagement part of the jack, the sixth engagement part configured to engage with the second engagement part of the plug and the fourth engagement part of the jack.Type: GrantFiled: May 24, 2012Date of Patent: February 11, 2014Assignee: Fujitsu LimitedInventors: Manabu Wakao, Kouichi Kuramitsu, Kenji Tsutsumi
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Publication number: 20120231651Abstract: A plug of a connector includes plug-side electrode terminals arranged therein, the plug having a first engagement part on one end side in a direction of arrangement of the plug-side electrode terminals and a second engagement part on the other end side. A jack of the connector includes jack-side electrode terminals arranged therein, the jack having a third engagement part on one end side in a direction of arrangement of the jack-side electrode terminals and a fourth engagement part on the other end side. A guide member has a fifth engagement part and a sixth engagement part, the fifth engagement part configured to engage with the first engagement part of the plug and the third engagement part of the jack, the sixth engagement part configured to engage with the second engagement part of the plug and the fourth engagement part of the jack.Type: ApplicationFiled: May 24, 2012Publication date: September 13, 2012Applicant: Fujitsu LimitedInventors: Manabu WAKAO, Kouichi Kuramitsu, Kenji Tsutsumi
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Patent number: 7990726Abstract: A tray-type structure device includes a side plate, a front plate attached to a forward end of the side plate, having the functions of opening and closing, and positioned on the front side of a housing, a top plate attached to an upper end of the side plate, with a plurality of openings formed therein, and having the function of variably setting a ventilation resistance, a bottom plate attached to a lower end of the side plate, with a plurality of openings formed therein, and having the function of variably setting a ventilation resistance, and a back plate attached to a rearward end of the side plate, having the functions of opening and closing, and positioned on a side of the housing toward a backboard. The device has a tray structure having a tray-like shape formed by the front plate, top plate, bottom plate, side plate and back plate.Type: GrantFiled: December 23, 2009Date of Patent: August 2, 2011Assignee: Fujitsu LimitedInventors: Noboru Izuhara, Kazuo Fujita, Kouichi Kuramitsu
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Publication number: 20100118489Abstract: A tray-type structure device includes a side plate, a front plate attached to a forward end of the side plate, having the functions of opening and closing, and positioned on the front side of a housing, a top plate attached to an upper end of the side plate, with a plurality of openings formed therein, and having the function of variably setting a ventilation resistance, a bottom plate attached to a lower end of the side plate, with a plurality of openings formed therein, and having the function of variably setting a ventilation resistance, and a back plate attached to a rearward end of the side plate, having the functions of opening and closing, and positioned on a side of the housing toward a backboard. The device has a tray structure having a tray-like shape formed by the front plate, top plate, bottom plate, side plate and back plate.Type: ApplicationFiled: December 23, 2009Publication date: May 13, 2010Applicant: FUJITSU LIMITEDInventors: Noboru Izuhara, Kazuo Fujita, Kouichi Kuramitsu
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Patent number: 7709929Abstract: A disclosed capacitor sheet attached to an electronic apparatus comprises: a laminated body; a first penetration electrode penetrating the laminated body, the first penetration electrode being electrically connected to a terminal electrode of the electronic apparatus; a second penetration electrode disposed at an arrangement position different from that of the first penetration electrode on the laminated body, the second penetration electrode being electrically insulated from the first penetration electrode and penetrating the laminated body; at least one first conductor thin film electrically connected to the first penetration electrode and insulated from the second penetration electrode; and at least one second conductor thin film disposed so as to face the first conductor thin film via a dielectric layer, the second conductor thin film being electrically connected to the second penetration electrode and insulated from the first penetration electrode.Type: GrantFiled: August 9, 2006Date of Patent: May 4, 2010Assignee: Fujitsu LimitedInventors: Kouichi Kuramitsu, Kazuo Fujita, Noboru Izuhara
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Patent number: 7684670Abstract: A wire accommodating apparatus includes a cylindrical portion around which a wire connected to a signal transmission part is wound; a number of wire holding portions which incline externally from the bottom of the cylindrical portion and are disposed pivotably; and a fixed portion formed in the cylindrical portion so as to project downward, passing through an attachment hole of a to-be-mounted member, and fixed therein.Type: GrantFiled: February 20, 2009Date of Patent: March 23, 2010Assignee: Fujitsu LimitedInventors: Kenji Tsutsumi, Manabu Wakao, Kouichi Kuramitsu
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Publication number: 20090220205Abstract: A wire accommodating apparatus includes a cylindrical portion around which a wire connected to a signal transmission part is wound; a number of wire holding portions which incline externally from the bottom of the cylindrical portion and are disposed pivotably; and a fixed portion formed in the cylindrical portion so as to project downward, passing through an attachment hole of a to-be-mounted member, and fixed therein.Type: ApplicationFiled: February 20, 2009Publication date: September 3, 2009Applicant: FUJITSU LIMITEDInventors: Kenji Tsutsumi, Manabu Wakao, Kouichi Kuramitsu
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Publication number: 20080013295Abstract: A disclosed capacitor sheet attached to an electronic apparatus comprises: a laminated body; a first penetration electrode penetrating the laminated body, the first penetration electrode being electrically connected to a terminal electrode of the electronic apparatus; a second penetration electrode disposed at an arrangement position different from that of the first penetration electrode on the laminated body, the second penetration electrode being electrically insulated from the first penetration electrode and penetrating the laminated body; at least one first conductor thin film electrically connected to the first penetration electrode and insulated from the second penetration electrode; and at least one second conductor thin film disposed so as to face the first conductor thin film via a dielectric layer, the second conductor thin film being electrically connected to the second penetration electrode and insulated from the first penetration electrode.Type: ApplicationFiled: August 9, 2006Publication date: January 17, 2008Inventors: Kouichi Kuramitsu, Kazuo Fujita, Noboru Izuhara
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Patent number: 7064961Abstract: A communication device which is constructed so as to permit efficient mounting of cards such as printed boards, thereby enhancing convenience and economy and ensuring high-quality communications. A basic unit is constituted by a basic board having a common control section packaged thereon, and a basic back wiring board on which are arranged a basic card connector for mounting a detachable card unit for processing signals and a basic link connector for additionally connecting such a card unit and which has wiring formed on a substrate thereof. An extension unit is connected to the basic link connector to permit additional connection of the card unit.Type: GrantFiled: September 14, 2001Date of Patent: June 20, 2006Assignee: Fujitsu LimitedInventors: Akira Sawada, Mitsuaki Hayashi, Hironori Tanaka, Kouichi Kuramitsu, Miyuki Hashimoto, Wataru Takano, Mitsuo Fujimura
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Patent number: 6991471Abstract: An electronic apparatus has a plug-in unit and a housing that can increase a number of optical modules connected thereto. In the plug-in unit, a first connector is connectable to an optical module connected to an optical cable. A connector housing accommodates the first connector and has an insertion part into which the optical module is inserted. An attachment lever is used for fixing the plug-in unit to the housing in which the plug-in unit is accommodated. The first connector is located on a back side of the plug-in unit opposite to a front side where the attachment lever is located.Type: GrantFiled: February 27, 2004Date of Patent: January 31, 2006Assignee: Fujitsu LimitedInventors: Mitsuaki Hayashi, Akira Sawada, Kouichi Kuramitsu, Wataru Takano, Minoru Fujii, Hironori Tanaka
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Publication number: 20050074222Abstract: An electronic apparatus has a plug-in unit and a housing that can increase a number of optical modules connected thereto. In the plug-in unit, a first connector is connectable to an optical module connected to an optical cable. A connector housing accommodates the first connector and has an insertion part into which the optical module is inserted. An attachment lever is used for fixing the plug-in unit to the housing in which the plug-in unit is accommodated. The first connector is located on a back side of the plug-in unit opposite to a front side where the attachment lever is located.Type: ApplicationFiled: February 27, 2004Publication date: April 7, 2005Inventors: Mitsuaki Hayashi, Akira Sawada, Kouichi Kuramitsu, Wataru Takano, Minoru Fujii, Hironori Tanaka
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Publication number: 20020176234Abstract: A communication device which is constructed so as to permit efficient mounting of cards such as printed boards, thereby enhancing convenience and economy and ensuring high-quality communications. A basic unit is constituted by a basic board having a common control section packaged thereon, and a basic back wiring board on which are arranged a basic card connector for mounting a detachable card unit for processing signals and a basic link connector for additionally connecting such a card unit and which has wiring formed on a substrate thereof. An extension unit is connected to the basic link connector to permit additional connection of the card unit.Type: ApplicationFiled: September 14, 2001Publication date: November 28, 2002Inventors: Akira Sawada, Mitsuaki Hayashi, Hironori Tanaka, Kouichi Kuramitsu, Miyuki Hashimoto, Wataru Takano, Mitsuo Fujimura