Patents by Inventor Takuju Nakamura
Takuju 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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Publication number: 20200325722Abstract: A window body includes two sheets of plate members that form a space sandwiched therebetween, a liquid HF that is enclosed between the two sheets of plate members, and a slop having a liquid circulation structure in which a reservoir Res for the hydraulic fluid HF is formed on one plate member side of the two sheets of plate members, the hydraulic fluid HF in the reservoir Res evaporated by heat of the one plate member side reaches the other plate member side, and the hydraulic fluid HF condensed on the other plate member side returns to the reservoir Res again.Type: ApplicationFiled: June 25, 2020Publication date: October 15, 2020Applicant: Yazaki Energy System CorporationInventor: Takuju NAKAMURA
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Publication number: 20200033028Abstract: Provided is a solar collector that captures and utilizes solar energy and includes a plurality of vacuum tubes which are disposed by extending horizontally and are disposed parallel to each other with a predetermined distance; and a reflection plate having a substantially planar shape, which reflects solar light on an opposite side of the sun with respect to the plurality of vacuum tubes, in which the reflection plate includes a reflection surface having a serrated section at a corresponding position between vacuum tubes adjacent to each other, and in the reflection surface, one face of a serration forms a first reflection surface that reflects the solar light to the vacuum tube on a lower side among the vacuum tubes adjacent to each other.Type: ApplicationFiled: September 30, 2019Publication date: January 30, 2020Inventor: Takuju Nakamura
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Publication number: 20200033069Abstract: There is provided a heat storage system including: an indoor space; a heat storage space which is adjacent to the indoor space and in which a latent heat storage material having a melting point or a freezing point in a range of 5° C. or higher and 30° C. or lower is installed; and a natural ventilator controlling introduction and blocking of outside air to the heat storage space, in which a heat resistance between the heat storage space and the outside air is set to be greater than a heat resistance between the heat storage space and the indoor space.Type: ApplicationFiled: October 1, 2019Publication date: January 30, 2020Inventors: Takuju Nakamura, Kai Gunji
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Publication number: 20190376729Abstract: A heat exchanging device includes a regenerator that heats an absorbent by external energy and generates a vapor refrigerant by evaporating a refrigerant from the absorbent, a condenser that generates a liquid refrigerant by cooling and liquefying the vapor refrigerant, an evaporator that generates a vapor refrigerant by vaporizing the vapor refrigerant, an absorber that absorbs the liquid refrigerant into the absorbent, and first and second cover members arranged opposite to each other. The evaporator absorbs heat from a space on a second cover member side in a space between the first and second cover members through the second cover member. The absorber dissipates the heat from a space on a first cover member side in the space between the first and second cover members through the first cover member, and circulates the refrigerant and the absorbent.Type: ApplicationFiled: August 23, 2019Publication date: December 12, 2019Applicant: PORTA-PARK, INC.Inventor: Takuju Nakamura
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Publication number: 20190316811Abstract: A solar energy utilization system includes a solar heat collector that is mounted to a glass surface of a building from the interior and that heats a heating medium by heat energy obtained by taking in solar energy, and an inner glass that is provided on the solar heat collector on the interior side of the building and that uses the heating medium from the solar heat collector on the interior side. A far-infrared cut-off process is applied to the inner glass so that both the absorptivity and emissivity and transmittance of far-infrared rays with a wavelength of at least 9 ?m to 10 ?m are 20% or less.Type: ApplicationFiled: June 26, 2019Publication date: October 17, 2019Applicant: YAZAKI ENERGY SYSTEM CORPORATIONInventor: Takuju NAKAMURA
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Patent number: 10377450Abstract: An offshore structure is separated into an upper structure and a lower structure. Part or whole of the lower structure is kept in an upright standing state in water. The upper structure is moved to above the lower structure kept in the upright standing state. A uniting step includes one or both of raising the lower structure to arrange the lower structure on a lower side of the upper structure and lowering the upper structure to arrange the upper structure on an upper side of the lower structure by submerging part of a carrier vessel on which the upper structure is mounted while being held by a pair of arm-shaped structures of the carrier vessel and integrating the lower structure with the upper structure. In this way, an offshore structure is moored safely at an offshore installation site without using a crane vessel.Type: GrantFiled: September 25, 2014Date of Patent: August 13, 2019Assignee: MODEC, INC.Inventor: Takuju Nakamura
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Patent number: 10351211Abstract: A system includes mooring lines arranged respectively in three to eight directions, and at least one of a plurality of offshore structures included in the offshore structure group is moored by locking the mooring lines in the respective directions with separate mooring bases, and at least one of the mooring bases locks the mooring lines which are connected respectively to three to eight of the offshore structures in the offshore structure group. With this configuration, even when part of the mooring lines mooring the offshore structures is broken or the mooring function of the mooring bases is lost, although the offshore structure moves, the offshore structure is kept being moored by the remaining mooring-line group, so that the offshore structure can be prevented from colliding with another offshore structure.Type: GrantFiled: September 25, 2014Date of Patent: July 16, 2019Assignee: MODEC, INC.Inventor: Takuju Nakamura
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Patent number: 10222127Abstract: A guide plate having depressed portions is provided between an array of heat exchanger tubes, herein after “tubes”, arranged horizontally side-by-side and a next lower array of tubes arranged horizontally side-by-side, and is positioned with the lowest parts of the depressed portions near crest portions of respective lower tubes. The guide plate conveys a liquid D on outer surfaces of respective upper tubes onto similarly positioned lower tubes even when the tubes move in a right-and-left direction. A falling film heat exchanger installed in a ship, an offshore structure or the like can avoid reduction in heat exchange performance, even when the ship or the like inclines and swings, by substantially evenly distributing and dropping a liquid onto the crests of the tubes and causing the liquid dropped from the tubes located in an upper array to fall onto the tubes located in the next lower array.Type: GrantFiled: August 16, 2012Date of Patent: March 5, 2019Assignee: MODEC, INC.Inventors: Takuju Nakamura, Masaki Kawase
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Patent number: 9751602Abstract: Provided are a floating structure fluid dynamic force use system and a wind-propelled vessel which uses the system whereby it is possible to compensate for overturning moment due to fluid dynamic force and to alleviate both tilting and size increases of a floating structure. A floating structure fluid dynamic force use system (1) comprises an assembly (12) which extracts energy from wind or water, and a floating structure (13) which supports the assembly (12). The assembly (12) comprises a wind receiving part (10) which receives fluid dynamic force, and a support column (11) which supports the wind receiving part (10). The assembly (12) is positioned with the center of gravity (15) thereof below the water line and is supported to be capable of tilting in an arbitrary direction upon the floating structure (13).Type: GrantFiled: November 2, 2012Date of Patent: September 5, 2017Inventors: Takuju Nakamura, Hiromichi Akimoto
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Patent number: 9725870Abstract: Disclosed embodiments relate to systems and methods for mating a wind turbine off-shore to a spar buoy without the use of a crane barge. The system may include a spar buoy, wherein the spar buoy is secured to a foundation, and a wind turbine to be installed on the spar buoy. The system may also include a first truss affixed to the top of the spar buoy and a second truss affixed to the bottom of the wind turbine. The first truss may comprise either stabbings or receptacles configured for mating to the second truss and the second truss may comprise either receptacles or stabbings configured for mating to the first truss.Type: GrantFiled: December 9, 2015Date of Patent: August 8, 2017Assignee: Sofec, Inc.Inventors: Yonghui Liu, Cheng-Pen Kwei, Ding Yu, Takuju Nakamura, Hao Yu, Seth Tharpe, David Seaman
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Patent number: 9719528Abstract: In a bubble lift system, a pressurized chamber at an upper end portion of a riser pipe applies a pressure to an upper portion inside the riser pipe to suppress an increase in the volume ratio of bubbles to a fluid mixture rising inside the riser pipe in a shallow water region. The upper end of the riser pipe is not opened to the atmosphere but is inserted into the pressurized chamber under a high pressure to thereby prevent expansion of the bubbles and gas. In addition, a deaerator for discharging bubbles separated by a centrifugal force is also provided in a middle portion of the riser pipe in a shallow water region to distribute the bubbles more evenly inside the whole riser pipe. The bubble lift system and a bubble lift method thus provided are efficient and employable even in a deep water region.Type: GrantFiled: July 27, 2012Date of Patent: August 1, 2017Assignee: MODEC, INC.Inventors: Takuju Nakamura, Masaki Kawase
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Publication number: 20170197690Abstract: An offshore structure is separated into an upper structure and a lower structure. Part or whole of the lower structure is kept in an upright standing state in water. The upper structure is moved to above the lower structure kept in the upright standing state. A uniting step includes one or both of raising the lower structure to arrange the lower structure on a lower side of the upper structure and lowering the upper structure to arrange the upper structure on an upper side of the lower structure by submerging part of a carrier vessel on which the upper structure is mounted while being held by a pair of arm-shaped structures of the carrier vessel and integrating the lower structure with the upper structure. In this way, an offshore structure is moored safely at an offshore installation site without using a crane vessel.Type: ApplicationFiled: September 25, 2014Publication date: July 13, 2017Applicant: MODEC, INC.Inventor: Takuju Nakamura
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Publication number: 20170166286Abstract: A system includes mooring lines arranged respectively in three to eight directions, and at least one of a plurality of offshore structures included in the offshore structure group is moored by locking the mooring lines in the respective directions with separate mooring bases, and at least one of the mooring bases locks the mooring lines which are connected respectively to three to eight of the offshore structures in the offshore structure group. With this configuration, even when part of the mooring lines mooring the offshore structures is broken or the mooring function of the mooring bases is lost, although the offshore structure moves, the offshore structure is kept being moored by the remaining mooring-line group, so that the offshore structure can be prevented from colliding with another offshore structure.Type: ApplicationFiled: September 25, 2014Publication date: June 15, 2017Applicant: MODEC, INC.Inventor: Takuju Nakamura
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Publication number: 20160160836Abstract: Disclosed embodiments relate to systems and methods for mating a wind turbine off-shore to a spar buoy without the use of a crane barge. The system may include a spar buoy, wherein the spar buoy is secured to a foundation, and a wind turbine to be installed on the spar buoy. The system may also include a first truss affixed to the top of the spar buoy and a second truss affixed to the bottom of the wind turbine. The first truss may comprise either stabbings or receptacles configured for mating to the second truss and the second truss may comprise either receptacles or stabbings configured for mating to the first truss.Type: ApplicationFiled: December 9, 2015Publication date: June 9, 2016Applicant: SOFEC, Inc.Inventors: Yonghui Liu, Cheng-Pen Kwei, Ding Yu, Takuju Nakamura, Hao Yu, Seth Tharpe, David Seaman
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Publication number: 20140322996Abstract: Provided are a floating structure fluid dynamic force use system and a wind-propelled vessel which uses the system whereby it is possible to compensate for overturning moment due to fluid dynamic force and to alleviate both tilting and size increases of a floating structure. A floating structure fluid dynamic force use system (1) comprises an assembly (12) which extracts energy from wind or water, and a floating structure (13) which supports the assembly (12). The assembly (12) comprises a wind receiving part (10) which receives fluid dynamic force, and a support column (11) which supports the wind receiving part (10). The assembly (12) is positioned with the center of gravity (15) thereof below the water line and is supported to be capable of tilting in an arbitrary direction upon the floating structure (13).Type: ApplicationFiled: November 2, 2012Publication date: October 30, 2014Inventors: Takuju Nakamura, Hiromichi Akimoto
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Publication number: 20140231058Abstract: A guide plate having depressed portions is provided between an array of heat exchanger tubes, herein after “tubes”, arranged horizontally side-by-side and a next lower array of tubes arranged horizontally side-by-side, and is positioned with the lowest parts of the depressed portions near crest portions of respective lower tubes. The guide plate conveys a liquid D on outer surfaces of respective upper tubes onto similarly positioned lower tubes even when the tubes move in a right-and-left direction. A falling film heat exchanger installed in a ship, an offshore structure or the like can avoid reduction in heat exchange performance, even when the ship or the like inclines and swings, by substantially evenly distributing and dropping a liquid onto the crests of the tubes and causing the liquid dropped from the tubes located in an upper array to fall onto the tubes located in the next lower array.Type: ApplicationFiled: August 16, 2012Publication date: August 21, 2014Applicant: MODEC, INC.Inventors: Takuju Nakamura, Masaki Kawase
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Publication number: 20140169989Abstract: In a bubble lift system 10, a pressurized chamber 21 is provided at an upper end portion of a riser pipe 11, and applies a pressure to an upper portion inside the riser pipe 11 to suppress an increase in the volume ratio of bubbles to a fluid mixture rising inside the riser pipe 11 in a shallow water region. In this configuration, the upper end of the riser pipe 11 is not opened to the atmosphere but is inserted into the pressurized chamber 21 under a high pressure to thereby prevent expansion of the bubbles and gas. In addition, a deaerator 14 for discharging bubbles separated by a centrifugal force is also provided in a middle portion of the riser pipe 11 in a shallow water region to thereby make the bubbles distributed more evenly inside the whole riser pipe 11. Thus, provided are the bubble lift system 10 and a bubble lift method that are efficient and employable even in a deep water region.Type: ApplicationFiled: July 27, 2012Publication date: June 19, 2014Applicant: MODEC, INC.Inventors: Takuju Nakamura, Masaki Kawase
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Patent number: 5678847Abstract: In an active suspension system, an electromagnetic actuator is interposed between a tube connected to a vehicle body and a rod connected to a wheel. The electromagnetic actuator includes a motor vertically slidably accommodated within the tube and supported in a floating manner by motor supporting springs, and a ball screw driven by the motor. The displacement between the vehicle body and the wheel and the load are controlled by driving the ball screw by the motor. When a fierce load is applied from the wheel, the motor itself resiliently moves upwardly while compressing one of the motor supporting springs, thereby permitting the upward movement of the rod to prevent the locking of the active suspension system, leading to an enhanced riding comfort.Type: GrantFiled: January 22, 1996Date of Patent: October 21, 1997Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masaki Izawa, Hirotada Ito, Tsukasa Fukuzato, Takuju Nakamura