Patents by Inventor Ryosuke Cho
Ryosuke Cho 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: 20240116823Abstract: Provided is an inorganic structure including a plurality of inorganic particles; and a binding part that covers a surface of each of the plurality of inorganic particles and binds each of the plurality of inorganic particles together. The binding part contains: an amorphous compound containing at least one of aluminum or titanium, oxygen, and one or more metallic elements; and a plurality of fine particles having an average particle size of 100 nm or less. The plurality of inorganic particles has an average particle size of 1 ?m or more, and the plurality of inorganic particles has a volume percentage of 30% or more.Type: ApplicationFiled: February 9, 2022Publication date: April 11, 2024Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Natsuki SATO, Ryosuke SAWA, Naoki KURIZOE, Tatsuro YOSHIOKA, Tohru SEKINO, Sunghun CHO, Tomoyo GOTO
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Patent number: 9132714Abstract: A capacity control valve for increasing the ability to drain liquid refrigerant from a control chamber during startup of a variable-capacity compressor without changing the control valve characteristics has a spring acting in the direction of valve opening provided between an adapter and a free end of a pressure-sensitive body in the extension and contraction direction thereof and having an annular seat surface, and a third valve part having an annular engaging surface for opening and closing a suction-side passage by engaging and disengaging with the seat surface of the adapter.Type: GrantFiled: November 4, 2011Date of Patent: September 15, 2015Assignee: EAGLE INDUSTRY CO., LTD.Inventors: Masayuki Futakuchi, Kohei Fukudome, Kenji Moriwaki, Masahiro Hayama, Toshinori Kanzaki, Ryosuke Cho
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Patent number: 8757988Abstract: A capacity control valve for a variable-capacity compressor such as used in an air-conditioning system in a motor vehicle is provided, wherein foreign matter is prevented from being caught in the sliding parts and leakage on the sliding parts is prevented from occurring by configuring the capacity control valve so that there are no sliding parts between the valving element and the housing (valve body). The valve includes a bellows-type valve that includes a bellows and a fixing bracket joined in an airtight manner to an end of the bellows. The fixing bracket is fixed in an airtight manner to a valve body between a first valve chamber and a suction port.Type: GrantFiled: February 25, 2011Date of Patent: June 24, 2014Assignee: Eagle Industry Co., Ltd.Inventors: Kohei Fukudome, Ryosuke Cho, Masayuki Futakuchi
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Patent number: 8651826Abstract: A capacity control valve capable of enhancing the function of discharging liquid refrigerant in a control chamber during startup of a variable capacity compressor, and improving the control speed of a swash plate during control is provided. The valve has an adapter that has an annular bearing surface and is provided to a free end of a pressure-sensitive body in the elongation and constriction direction, and a valve body for discharging liquid refrigerant, moveably provided inside the adapter. A slit is provided to an engaging part of the adapter with a third valve part, and an introduction hole for causing the control chamber pressure to act on a bottom surface of the valve body for discharging the liquid refrigerant is provided to the base part side, and an urging force is provided whereby the valve body for discharging the liquid refrigerant is urged in a valve-opening direction away from the third valve part.Type: GrantFiled: February 22, 2011Date of Patent: February 18, 2014Assignee: Eagle Industry Co., Ltd.Inventors: Masayuki Futakuchi, Ryosuke Cho, Kohei Fukudome
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Publication number: 20130291963Abstract: A capacity control valve for increasing the ability to drain liquid refrigerant from a control chamber during startup of a variable-capacity compressor without changing the control valve characteristics has a spring acting in the direction of valve opening provided between an adapter and a free end of a pressure-sensitive body in the extension and contraction direction thereof and having an annular seat surface, and a third valve part having an annular engaging surface for opening and closing a suction-side passage by engaging and disengaging with the seat surface of the adapter.Type: ApplicationFiled: November 4, 2011Publication date: November 7, 2013Applicant: EAGLE INDUSTRY CO., LTD.Inventors: Masayuki Futakuchi, Kohei Fukudome, Kenji Moriwaki, Masahiro Hayama, Toshinori Kanzaki, Ryosuke Cho
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Publication number: 20120198992Abstract: A capacity control valve capable of enhancing the function of discharging liquid refrigerant in a control chamber during startup of a variable capacity compressor, and improving the control speed of a swash plate during control is provided. The valve has an adapter that has an annular bearing surface and is provided to a free end of a pressure-sensitive body in the elongation and constriction direction, and a valve body for discharging liquid refrigerant, moveably provided inside the adapter. A slit is provided to an engaging part of the adapter with a third valve part, and an introduction hole for causing the control chamber pressure to act on a bottom surface of the valve body for discharging the liquid refrigerant is provided to the base part side, and an urging force is provided whereby the valve body for discharging the liquid refrigerant is urged in a valve-opening direction away from the third valve part.Type: ApplicationFiled: February 22, 2011Publication date: August 9, 2012Inventors: Masayuki Futakuchi, Ryosuke Cho, Kohei Fukudome
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Publication number: 20120198993Abstract: A capacity control valve for a variable-capacity compressor such as used in an air-conditioning system in a motor vehicle is provided, wherein foreign matter is prevented from being caught in the sliding parts and leakage on the sliding parts is prevented from occurring by configuring the capacity control valve so that there are no sliding parts between the valving element and the housing (valve body).Type: ApplicationFiled: February 25, 2011Publication date: August 9, 2012Inventors: Kohei Fukudome, Ryosuke Cho, Masayuki Futakuchi
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Patent number: 8152482Abstract: A displacement control valve for a variable displacement compressor. The displacement control valve includes a drive force transmission body, a pressure sensitive chamber, an internal passage, and a valve body. The valve body includes an annular seal which is contactable with a valve seat surface facing toward the first valve body. The drive force transmission body includes a drive rod and a valve body structure having a shaft passage and forming the first valve body. The drive rod is fitted to the shaft passage and coupled to the valve body structure so as to form a gap passage between an outer surface of the drive rod and a wall surface of the shaft passage. The internal passage includes a recess arranged radially inward from the annular seal, the shaft passage, and the gap passage. The gap passage is in direct communication with the recess.Type: GrantFiled: October 23, 2008Date of Patent: April 10, 2012Assignees: Kabushiki Kaisha Toyota Jidoshokki, Eagle Industry Co., Ltd.Inventors: Satoshi Umemura, Tatsuya Hirose, Yuji Hashimoto, Norio Uemura, Ryosuke Cho, Keigo Shirafuji
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Patent number: 8079827Abstract: A displacement control valve for an air conditioner modulating a fluid flow or fluid pressure within a control chamber by controlling the opening degree of a valve portion.Type: GrantFiled: March 15, 2007Date of Patent: December 20, 2011Assignee: Eagle Industry Co., Ltd.Inventors: Toshiaki Iwa, Ryosuke Cho, Ichiro Hirata, Matthew R. Warren, Ernest Jose Gutierrez
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Patent number: 8021124Abstract: A capacity control valve includes a valve body having a first valve portion for opening/closing a discharge-side path and a second valve portion for opening/closing a suction-side path, a pressure sensitive body arranged in a third valve chamber in the middle of the suction-side path, a valve seat body provided at the pressure sensitive body, and a third valve portion connected to the valve body for opening/closing the suction-side path by engagement and disengagement with the valve seat body. One of an engagement face of the third valve portion and a seat face of the valve seat body is formed into a spherical shape with a radius of curvature R satisfying 9 mm<R<11 mm and the other of the engagement face of the third valve portion and the seat face of the valve seat body is formed into a tapered surface shape having a center angle ? satisfying 120°<?<160°.Type: GrantFiled: February 23, 2006Date of Patent: September 20, 2011Assignees: Eagle Industry Co., Ltd., Kabushiki Kaisha Toyota JidoshokkiInventors: Satoshi Umemura, Masaki Ota, Masahiro Kawaguchi, Ryosuke Cho, Keigo Shirafuji, Toshiaki Iwa
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Patent number: 7988125Abstract: A seal structure sealing a fitted part between the guide surface of a bearing part and a shaft part to prevent a fluid from flowing in a direction from a high-pressure fluid side to a low-pressure fluid side. The seal structure comprises a seal ring storage part having a radial contact surface surrounding the shaft part which is formed on the high-pressure fluid side of the bearing part and a seal ring disposed in the seal ring storage part, allowing its side surface facing the contact surface to come into contact with the contact surface, and allowing its inner peripheral surface to be fitted to the outer peripheral surface of the shaft part. The seal ring is formed in such a relative dimension that, even if elastically deformed by the pressure of the sealed fluid, the elastically deformed expanded portion thereof is not brought into contact with the peripheral surface of the seal ring storage part.Type: GrantFiled: April 21, 2006Date of Patent: August 2, 2011Assignee: Eagle Industry Co., Ltd.Inventors: Ryosuke Cho, Yoshihiro Ogawa, Kohei Fukudome
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Patent number: 7987871Abstract: A selector valve, comprising a valve chamber having a first valve seat and a second valve seat facing the first valve seat, a first fluid passage communicating with a first valve port on the periphery of the first valve seat of the valve chamber to flow a first working fluid therein, a second fluid passage communicating with the valve chamber to flow the working fluid therefrom or therein, a third fluid passage communicating with a second valve port on the periphery of the second valve seat of the valve chamber to flow the working fluid therefrom, a valve element disposed in the valve chamber and alternately separating from and coming into contact with the first valve seat and the second valve seat, a stem part connected to the valve element, a guide hole movably guiding the valve stem, a storage chamber for a seal means installed around the guide hole, an auxiliary passage allowing the storage chamber to communicate with the first fluid passage, and a solenoid part connected to the stem part for operating aType: GrantFiled: April 21, 2006Date of Patent: August 2, 2011Assignee: Eagle Industry Co., Ltd.Inventors: Ryosuke Cho, Yoshihiro Ogawa, Kohei Fukudome
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Patent number: 7958908Abstract: A capacity control valve, comprising a first valve chamber formed in a valve body, a first fluid passage communicating with the first valve chamber to flow a fluid with a discharge pressure therein, a valve seat formed around a valve port between the first valve chamber and the first fluid passage, a second fluid passage communicating with the first valve chamber to flow the fluid with the discharge pressure therefrom, a second valve chamber communicating with the first valve chamber through a guide hole, a third fluid passage communicating with the second valve chamber to flow the fluid with a suction pressure therein and therefrom, a valve element disposed in the first valve chamber and having a valve part separated from and brought into contact with the valve seat to flow the fluid with the discharge pressure therein and a stem part movably fitted to the guide hole, and a solenoid having a solenoid rod connected to the connection face of the valve element and moving the solenoid rod with a current, A dischType: GrantFiled: April 5, 2006Date of Patent: June 14, 2011Assignee: Eagle Industry Co., Ltd.Inventors: Ryosuke Cho, Toshiaki Iwa, Norio Uemura
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Patent number: 7806666Abstract: A displacement control valve (32) is connected to a variable displacement compressor. An open passage (53) in which a refrigerant gas flows is formed within a rod (31) and a valve body (30) of the displacement control valve (32). Further, an inner circumferential surface of a valve chamber (36) is formed as a guide portion (40) for moving the valve body (30) along an axis (L1) of the valve chamber (36). A valve portion (30a) of the valve body (30) is formed in a circular arc cross sectional shape along a surface of a sphere (K) in which an intermediate point of a length of the guide portion (40) along the axis (L1) of the valve chamber (36) is set to a center (N) on the axis (L1), and a distance from the center (N) to a contact point between a valve seat (36a) and the valve portion (30a) is set to a radius (r).Type: GrantFiled: June 7, 2006Date of Patent: October 5, 2010Assignee: Eagle Industry Co. Ltd.Inventors: Satoshi Umemura, Yuji Hashimoto, Tatsuya Hirose, Kazutaka Oda, Masataka Taniue, Ryosuke Cho, Keigo Shirafuji, Toshiaki Iwa
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Patent number: 7644729Abstract: A capacity control valve has a communication path (31) for communicating a discharge chamber (11) and a control chamber (12); one valve chamber (36) in the middle of the communication path (31); communication paths (32, 31b) for communicating a suction chamber (13) and the control chamber (12); the other valve chamber (36) in the middle of the communication path (32); a valve body (40) including a first valve section (41) that opens and closes the communication path (31) and a second valve section (42) that opens and closes the communication path (32), the first and second valve sections being placed in the valve chamber (36) and performing the opening and closing operation in a manner opposite to each other; and a solenoid (60) for moving the valve body (40). The valve body (40) has a pressure receiving section (44) at its end section that is across the second valve section (42) from the first valve section (41), and the pressure receiving section (44) receives pressure in the control chamber.Type: GrantFiled: June 8, 2006Date of Patent: January 12, 2010Assignee: Eagle Industry Co., Ltd.Inventors: Ryosuke Cho, Yoshihiro Ogawa, Kohei Fukudome
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Publication number: 20090283164Abstract: A capacity control valve of the present invention includes a communication path (31) through which a discharge chamber (11) and a control chamber (12) are allowed to communicate with each other; a valve chamber (36) in the middle of the communication path (31); communication paths (32, 31b) through which a suction chamber (13) and the control chamber (12) are allowed to communicate with each other; a valve chamber (36) in the middle of the communication path (32); a valve body (40) including a first valve part (41) that opens and closes the communication path (31) and a second valve part (42) that opens and closes the communication path (32), the first and second valve parts being placed in the valve chamber (36) and performing the opening and closing operation in a manner opposite to each other; and a solenoid (60) for moving the valve body (40).Type: ApplicationFiled: June 8, 2006Publication date: November 19, 2009Inventors: Ryosuke Cho, Yoshihiro Ogawa, Kohei Fukudome
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Publication number: 20090278068Abstract: A seal structure sealing a fitted part between the guide surface of a bearing part and a shaft part to prevent a fluid from flowing in a direction from a high-pressure fluid side to a low-pressure fluid side. The seal structure comprises a seal ring storage part having a radial contact surface surrounding the shaft part which is formed on the high-pressure fluid side of the bearing part and a seal ring disposed in the seal ring storage part, allowing its side surface facing the contact surface to come into contact with the contact surface, and allowing its inner peripheral surface to be fitted to the outer peripheral surface of the shaft part. The seal ring is formed in such a relative dimension that, even if elastically deformed by the pressure of the sealed fluid, the elastically deformed expanded portion thereof is not brought into contact with the peripheral surface of the seal ring storage part.Type: ApplicationFiled: April 21, 2006Publication date: November 12, 2009Inventors: Ryosuke Cho, Yoshihiro Ogawa, Kohei Fukudome
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Publication number: 20090183786Abstract: The present invention comprising a valve main body having a first valve chamber, a second valve chamber and a third valve chamber, said first valve chamber communicating with a first communication passage, said second valve chamber having a second valve seat face for a valve hole and communicating with a second communication passage, said third valve chamber having a third valve seat face and communicating with a third communication passage; a valve body having a first valve member, a second valve member and a third valve member, said second valve member having a intermediate communication passage therein communicating with said first valve chamber and said third communication passage, said second valve member opening and closing a valve hole with respect to second valve seat face, thereby communicating with said first valve chamber and said second valve chamber, said third valve member performing a valve opening/closing action with respect to said third valve seat face in an reverse manner against said seconType: ApplicationFiled: March 15, 2007Publication date: July 23, 2009Applicant: Eagle Industry Co., Ltd.Inventors: Toshiaki Iwa, Ryosuke Cho, Ichiro Hirata, Matthew R. Warren, Ernest Jose Gutierrez
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Publication number: 20090108221Abstract: A displacement control valve for a variable displacement compressor. The displacement control valve includes a drive force transmission body, a pressure sensitive chamber, an internal passage, and a valve body. The valve body includes an annular seal which is contactable with a valve seat surface facing toward the first valve body. The drive force transmission body includes a drive rod and a valve body structure having a shaft passage and forming the first valve body. The drive rod is fitted to the shaft passage and coupled to the valve body structure so as to form a gap passage between an outer surface of the drive rod and a wall surface of the shaft passage. The internal passage includes a recess arranged radially inward from the annular seal, the shaft passage, and the gap passage. The gap passage is in direct communication with the recess.Type: ApplicationFiled: October 23, 2008Publication date: April 30, 2009Inventors: Satoshi UMEMURA, Tatsuya Hirose, Yuji Hashimoto, Norio Uemura, Ryosuke Cho, Keigo Shirafuji
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Publication number: 20090057586Abstract: A capacity control valve, comprising a first valve chamber formed in a valve body, a first fluid passage communicatig with the first valve chamber to flow a fluid with a discharge pressure therein, a valve seat formed around a valve port between the first valve chamber and the first fluid passage, a second fluid passage communicating with the first valve chamber to flow the fluid with the discharge pressure therefrom, a second valve chamber communicating with the first valve chamber through a guide hole, a third fluid passage communicating with the second valve chamber to flow the fluid with a suction pressure therein and therfrom, a valve element disposed in the first valve chamber and having a valve part separated from and brought into contact with the valve seat to flow the fluid with the discharge pressure therein and a stem part movably fitted to the guide hole, and a solenoid having a solenoid rod connected to the connection face of the valve element and moving the solenoid rod with a current, A discharType: ApplicationFiled: April 5, 2006Publication date: March 5, 2009Inventors: Ryosuke Cho, Toshiaki Iwa, Norio Uemura