Patents by Inventor Yuuji Nakano
Yuuji Nakano 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: 11608903Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.Type: GrantFiled: June 11, 2021Date of Patent: March 21, 2023Assignee: DENSO CORPORATIONInventors: Naohito Seko, Yoshiaki Yamamoto, Shinichi Yokoyama, Yuuji Nakano, Ryo Sano
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Publication number: 20210301930Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.Type: ApplicationFiled: June 11, 2021Publication date: September 30, 2021Inventors: Naohito SEKO, Yoshiaki YAMAMOTO, Shinichi YOKOYAMA, Yuuji NAKANO, Ryo SANO
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Patent number: 11067180Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.Type: GrantFiled: February 22, 2019Date of Patent: July 20, 2021Assignee: DENSO CORPORATIONInventors: Naohito Seko, Yoshiaki Yamamoto, Shinichi Yokoyama, Yuuji Nakano, Ryo Sano
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Patent number: 10808848Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.Type: GrantFiled: August 1, 2018Date of Patent: October 20, 2020Assignee: DENSO CORPORATIONInventors: Naohito Seko, Yoshiaki Yamamoto, Shinichi Yokoyama, Yuuji Nakano, Ryo Sano
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Publication number: 20190186641Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.Type: ApplicationFiled: February 22, 2019Publication date: June 20, 2019Inventors: Naohito SEKO, Yoshiaki YAMAMOTO, Shinichi YOKOYAMA, Yuuji NAKANO, Ryo SANO
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Publication number: 20180340618Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.Type: ApplicationFiled: August 1, 2018Publication date: November 29, 2018Inventors: Naohito SEKO, Yoshiaki YAMAMOTO, Shinichi YOKOYAMA, Yuuji NAKANO, Ryo SANO
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Patent number: 10066751Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.Type: GrantFiled: June 23, 2015Date of Patent: September 4, 2018Assignee: DENSO CORPORATIONInventors: Naohito Seko, Yoshiaki Yamamoto, Shinichi Yokoyama, Yuuji Nakano, Ryo Sano
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Publication number: 20170009894Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.Type: ApplicationFiled: June 23, 2015Publication date: January 12, 2017Inventors: Naohito SEKO, Yoshiaki YAMAMOTO, Shinichi YOKOYAMA, Yuuji NAKANO, Ryo SANO
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Patent number: 8857500Abstract: A main body case containing therein an air blower for circulating ambient air and a heat exchanger for exchanging heat between the ambient air circulated by the air blower and inside air, flange provided in main body case and having wall surface joining surface joined to wall surface where main body case is arranged, and cover attached to flange, having a louver in a side of the inside air, and a plurality of opening holes in a side of the ambient air and covering the ambient air side of main body case, thereby making an attachment and a detachment of cover easy, and achieving a reduction of a maintenance work.Type: GrantFiled: October 16, 2009Date of Patent: October 14, 2014Assignee: Panasonic CorporationInventors: Keisuke Tsuji, Mutsuhiko Matsumoto, Nobuyuki Yasui, Hiroshi Shibata, Naoyuki Funada, Yuuji Nakano, Takahiro Sahashi, Keisuke Hagimoto, Hirotaka Soga, Keisuke Koga
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Patent number: 8713959Abstract: A heat generating body box housing refrigeration device includes a first refrigerant cycle in which a first condenser and a first evaporator are connected by a first refrigerant liquid pipe and a first refrigerant steam pipe and a second refrigerant cycle in which a second condenser and a second evaporator are connected by a second refrigerant liquid pipe and a second refrigerant steam pipe. The first refrigerant liquid pipe is connected between a first joint and a second joint, the first refrigerant steam pipe is connected between a third joint and a fourth joint, the second refrigerant liquid pipe is connected between a fifth joint and a sixth joint, and the second refrigerant steam pipe is connected between a seventh joint and an eighth joint.Type: GrantFiled: November 19, 2010Date of Patent: May 6, 2014Assignee: Panasonic CorporationInventors: Yuuji Nakano, Hiroshi Shibata, Keisuke Koga, Mutsuhiko Matsumoto, Keisuke Tsuji
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Publication number: 20120234034Abstract: A heat generating body box housing refrigeration device includes a first refrigerant cycle in which a first condenser and a first evaporator are connected by a first refrigerant liquid pipe and a first refrigerant steam pipe and a second refrigerant cycle in which a second condenser and a second evaporator are connected by a second refrigerant liquid pipe and a second refrigerant steam pipe. The first refrigerant liquid pipe is connected between a first joint and a second joint, the first refrigerant steam pipe is connected between a third joint and a fourth joint, the second refrigerant liquid pipe is connected between a fifth joint and a sixth joint, and the second refrigerant steam pipe is connected between a seventh joint and an eighth joint.Type: ApplicationFiled: November 19, 2010Publication date: September 20, 2012Applicant: PANASONIC CORPORATIONInventors: Yuuji Nakano, Hiroshi Shibata, Keisuke Koga, Mutsuhiko Matsumoto, Keisuke Tsuji
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Publication number: 20110192580Abstract: The invention is provided with main body case (4) containing therein an air blower for circulating ambient air and a heat exchanger for exchanging heat between the ambient air circulated by the air blower and inside air, flange (13) provided in main body case (4) and having wall surface joining surface (13b) joined to wall surface (2a) where main body case (4) is arranged, and cover (12) attached to flange (13), having a louver in a side of the inside air, and a plurality of opening holes in a side of the ambient air and covering the ambient air side of main body case (4), thereby making an attachment and a detachment of cover (12) easy, and achieving a reduction of a maintenance work.Type: ApplicationFiled: October 16, 2009Publication date: August 11, 2011Applicant: PANASONIC CORPORATIONInventors: Keisuke Tsuji, Mutsuhiko Matsumoto, Nobuyuki Yasui, Hiroshi Shibata, Naoyuki Funada, Yuuji Nakano, Takahiro Sahashi, Keisuke Hagimoto, Hirotaka Soga, Keisuke Koga
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Publication number: 20100326635Abstract: A heat-exchanging device employed in a heat generator casing with a small installation area. The heat-exchanging device includes a heat exchanger, a first air blower, and a second air blower in a first case. The first case includes a first inlet, a first outlet, a second inlet, and a second outlet. The first outlet is disposed in a direction different from a direction facing the first inlet. The second outlet is disposed in a direction different from a direction facing the second inlet. A first path where a first fluid flows and a second path where a second fluid flows cross in the heat exchanger. Heat is exchanged between the first fluid and the second fluid. The first air blower establishes a first passage where the first fluid flows from the first inlet to the first outlet via the first path. The second air blower establishes a second passage where the second fluid flows from the second inlet to the second outlet via the second path.Type: ApplicationFiled: February 5, 2009Publication date: December 30, 2010Applicant: PANASONIC CORPORATIONInventors: Keisuke Tsuji, Mutsuhiko Matsumoto, Naoyuki Funada, Yuuji Nakano, Hiroshi Shibata
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Publication number: 20090139261Abstract: There is provided a cooler for heater-containing box in which an outside air fan for carrying air on an outside air path and an inside air fan for carrying air on an inside air path are arranged such that a rotating shaft of each fan is in parallel with an air intake direction, and a heat exchanger for exchanging sensible heat of outside air and inside air is arranged between the outside air path and the inside air path such that a suction port at a longitudinal air-path side of the heat exchanger is aligned with a blowout port of the fan. The cooler for heater-containing box capable of making the depth thinner can be provided.Type: ApplicationFiled: September 20, 2006Publication date: June 4, 2009Inventors: Yuuji Nakano, Keisuke Hagimoto, Naoyuki Funada, Toshikazu Yamaguchi, Mutsuhiko Matsumoto, Kazuki Saishu, Hiroshi Shibata
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Publication number: 20090101304Abstract: A heat exchange type cooling device includes an enclosure, an inside-air passage allowing inside air in the inside of the enclosure to flow through the inside-air passage and returning the flowing inside air to the inside, an outside-air passage allowing outside air at the outside of the enclosure to flow through the outside-air passage and returning the flowing outside air to the outside, an inside-air blower sending the inside air to the inside-air passage, an outside-air blower sending the outside air to the outside-air passage, a heat-exchanging element exchanging heat between the outside air flowing through the outside-air passage and the inside air flowing through the inside-air passage, and a heater for heating the inside air. The outside-air passage is independent from the inside-air passage. The heater is provided upstream of the heat-exchanging element in the inside-air passage.Type: ApplicationFiled: September 12, 2006Publication date: April 23, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Naoyuki Funada, Yuuji Nakano, Keisuke Hagimoto, Toshikazu Yamaguchi, Mutsuhiko Matsumoto, Kazuki Saishu, Hiroshi Shibata