Patents by Inventor Toshihiko TOKESHI
Toshihiko TOKESHI 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: 20220057124Abstract: A liquid feeder switches a flow path of a liquid having flowed in from an inflow port to one of a flow path communicating with a first base communication port and a bypass outflow path. When a pump is attached to a base, the bypass outflow path is closed to allow the liquid having flowed in from the inflow port to flow to the pump. When the pump is removed from the base, the bypass outflow path is opened to allow the liquid having flowed in from the inflow port to flow from the bypass outflow path to the outflow port. The liquid feeder is able to prevent liquid leakage when a pump of a liquid feeder is replaced or repaired.Type: ApplicationFiled: June 25, 2021Publication date: February 24, 2022Inventors: Yoshihisa KITAMURA, Takaya OKUNO, Toshihiko TOKESHI, Takehito TAMAOKA, Akihiko MAKITA
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Patent number: 11252837Abstract: A cooling apparatus includes a cold plate including a lower surface to be in contact with a heat-radiating component, and a first coolant passage in which a coolant flows, a radiator including fins to perform cooling and pipes each defining a second coolant passage in communication with the first coolant passage, a pump to circulate the coolant, a first tank joined to one end of each of the pipes, and a second tank to join another end of each of the pipes to the pump. The radiator is provided on the cold plate, and the pump is adjacent to the second tank.Type: GrantFiled: March 11, 2019Date of Patent: February 15, 2022Assignee: NIDEC CORPORATIONInventors: Nobuya Nakae, Akihiko Makita, Hidenobu Takeshita, Tomotsugu Sugiyama, Toshihiko Tokeshi, Takehito Tamaoka
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Publication number: 20220026137Abstract: A cooler includes a cold plate to absorb heat from a heat source into coolant, a housing filled with the coolant and located on an upper side of the cold plate in a first direction X, and a partition located on a lower side in the housing. An inflow port and an outflow port are provided on one side in a second direction Y perpendicular or substantially perpendicular to the first direction X. The cold plate includes a first plate chamber and a second plate chamber in which the coolant flows between the cold plate and the partition. The partition includes a first through-hole communicating with the first plate chamber. The first plate chamber is farthest from the inflow port to the other side in the second direction Y. The housing includes a communication flow path allowing the inflow port to communicate with the first through-hole.Type: ApplicationFiled: June 16, 2021Publication date: January 27, 2022Inventors: Takaya OKUNO, Toshihiko TOKESHI, Takehito TAMAOKA
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Publication number: 20220025890Abstract: A pump device includes a flow path through which liquid flows, a first pump in the flow path, a second pump in the flow path, a first pump downstream flow path located downstream of the first pump in the flow path, a second pump downstream flow path located downstream of the second pump in the flow path, a connection flow path connected to the first pump downstream flow path and the second pump downstream flow path in the flow path, a first check valve provided in the first pump downstream flow path, and a second check valve provided in the second pump downstream flow path or the connection flow path.Type: ApplicationFiled: July 21, 2021Publication date: January 27, 2022Inventors: Yoshihisa KITAMURA, Toshihiko TOKESHI, Takehito TAMAOKA
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Publication number: 20220030747Abstract: A cooling assembly includes a cold plate in contact with a heat generating component, a housing on one side of the cooling assembly in a first direction with respect to the cold plate, a first wall located between the housing and the cold plate, and a second wall separating a plate chamber defined by the housing and the first wall into a first plate chamber and a second plate chamber adjacent to each other in a second direction orthogonal to the first direction. The first wall includes a first through hole opposing the cold plate in the first plate chamber and a second through hole opposing the cold plate in the second plate chamber.Type: ApplicationFiled: July 21, 2021Publication date: January 27, 2022Inventors: Takaya OKUNO, Toshihiko TOKESHI, Takehito TAMAOKA
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Patent number: 11147187Abstract: A cooling device includes at least two cooling units, each cooling unit including a plate-shaped cold plate extending in a horizontal direction, a radiator extending in a first direction perpendicular to the horizontal direction and having a plurality of plate-shaped fins which, on the cold plate, is disposed parallel to a second direction perpendicular to the first direction, and a pump which supplies a refrigerant liquid to the cold plate and the radiator, in which the pump is adjacent to the radiator and is disposed in the second direction of the radiator, and the pump of one first cooling unit of the two cooling units faces the other second cooling unit of the two cooling units in the second direction or in a third direction orthogonal to the first direction and the second direction.Type: GrantFiled: November 4, 2019Date of Patent: October 12, 2021Assignee: NIDEC CORPORATIONInventors: Toshihiko Tokeshi, Nobuya Nakae, Takahiro Imanishi, Akihiko Makita, Takehito Tamaoka
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Publication number: 20210282298Abstract: A cooling device includes at least two cooling units, each cooling unit including a plate-shaped cold plate extending in a horizontal direction, a radiator extending in a first direction perpendicular to the horizontal direction and having a plurality of plate-shaped fins which, on the cold plate, is disposed parallel to a second direction perpendicular to the first direction, and a pump which supplies a refrigerant liquid to the cold plate and the radiator, in which the pump is adjacent to the radiator and is disposed in the second direction of the radiator, and the pump of one first cooling unit of the two cooling units faces the other second cooling unit of the two cooling units in the second direction or in a third direction orthogonal to the first direction and the second direction.Type: ApplicationFiled: May 24, 2021Publication date: September 9, 2021Inventors: Toshihiko TOKESHI, Nobuya NAKAE, Takahiro IMANISHI, Akihiko MAKITA, Takehito TAMAOKA
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Publication number: 20210204453Abstract: A cooling device includes a cooling assembly which includes a cold plate extending in a first direction, a pump and a tank on one side of the cold plate in a second direction perpendicular to the first direction, and a partition extending in the first direction and covering the cold plate on one side in the second direction. The cold plate and the partition define a first refrigerant flow path through which a refrigerant flows. The pump includes a pump chamber in which an impeller is housed, the impeller moving the refrigerant. The tank includes a tank chamber in which the refrigerant flows. The pump chamber and the tank chamber communicate with each other through a first tank hole portion. The partition includes a first hole portion through which the first refrigerant flow path and the tank chamber communicate. The first tank hole portion is provided on one side in the first direction with respect to the first hole portion.Type: ApplicationFiled: March 11, 2021Publication date: July 1, 2021Inventors: Toshihiko TOKESHI, Takehito TAMAOKA, Nobuya NAKAE
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Publication number: 20210136958Abstract: A cooling device includes a cooling plate with a bottom wall portion with a lower surface which contacts a heat-generating component, a top wall portion which covers an upper surface of the bottom wall portion, a side wall portion which couples the bottom wall portion and the top wall portion, and an internal space which is surrounded by the bottom wall portion, the top wall portion, and the side wall portion to define a first cooling medium flow passage. The bottom wall portion includes blades on the upper surface. An inlet port or an outlet port is on one end side of the first cooling medium flow passage. An inner peripheral wall of the side wall portion includes a first bent portion which is bent convex inward between ends of the blades and the at least one of the inlet port and the outlet port.Type: ApplicationFiled: January 13, 2021Publication date: May 6, 2021Inventors: Toshihiko TOKESHI, Nobuya NAKAE, Takehito TAMAOKA
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Patent number: 10959353Abstract: A cooling device is provided with a cooling unit that includes a cold plate extending in a first direction; a pump and a tank disposed on one side in a second direction perpendicular to the first direction of the cold plate; and a partition member extending in the first direction and covering the cold plate on one side in the second direction. The cold plate includes a first refrigerant flow path through which a refrigerant flows in the first direction. The pump includes a pump chamber where a rotating body is accommodated. The tank includes a tank chamber storing the refrigerant and a first tank hole part communicating with the pump chamber. The partition member, including a first hole part that communicates the first flow path and the tank chamber, is provided on one side in the first direction with respect to the first hole part.Type: GrantFiled: October 16, 2019Date of Patent: March 23, 2021Assignee: NIDEC CORPORATIONInventors: Toshihiko Tokeshi, Takehito Tamaoka, Nobuya Nakae
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Patent number: 10917995Abstract: A cooling device includes: a cold plate; a radiator; a pump; a first tank; and a second tank. The cold plate has a first cooling medium flow passage. The radiator has fins and pipes forming a second cooling medium flow passage. The pump circulates a cooling medium. The first tank is coupled to one ends of the pipes. The second tank couples the other ends of the pipes to the pump. The radiator is disposed on the cold plate. The cold plate has a bottom wall portion, a top wall portion, a side wall portion, an internal space, an inlet port, and an outlet port. The bottom wall portion has blades, and an inner peripheral wall of the side wall portion has a first bent portion.Type: GrantFiled: November 20, 2019Date of Patent: February 9, 2021Assignee: NIDEC CORPORATIONInventors: Toshihiko Tokeshi, Nobuya Nakae, Takehito Tamaoka
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Publication number: 20200214176Abstract: A cooling device includes: a cold plate; a radiator; a pump; a first tank; and a second tank. The cold plate has a first cooling medium flow passage. The radiator has fins and pipes forming a second cooling medium flow passage. The pump circulates a cooling medium. The first tank is coupled to one ends of the pipes. The second tank couples the other ends of the pipes to the pump. The radiator is disposed on the cold plate. The cold plate has a bottom wall portion, a top wall portion, a side wall portion, an internal space, an inlet port, and an outlet port. The bottom wall portion has blades, and an inner peripheral wall of the side wall portion has a first bent portion.Type: ApplicationFiled: November 20, 2019Publication date: July 2, 2020Inventors: Toshihiko TOKESHI, Nobuya NAKAE, Takehito TAMAOKA
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Publication number: 20200146181Abstract: A cooling device includes at least two cooling units, each cooling unit including a plate-shaped cold plate extending in a horizontal direction, a radiator extending in a first direction perpendicular to the horizontal direction and having a plurality of plate-shaped fins which, on the cold plate, is disposed parallel to a second direction perpendicular to the first direction, and a pump which supplies a refrigerant liquid to the cold plate and the radiator, in which the pump is adjacent to the radiator and is disposed in the second direction of the radiator, and the pump of one first cooling unit of the two cooling units faces the other second cooling unit of the two cooling units in the second direction or in a third direction orthogonal to the first direction and the second direction.Type: ApplicationFiled: November 4, 2019Publication date: May 7, 2020Applicant: NIDEC CORPORATIONInventors: Toshihiko TOKESHI, Nobuya NAKAE, Takahiro IMANISHI, Akihiko MAKITA, Takehito TAMAOKA
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Publication number: 20200137929Abstract: A cooling device is provided with a cooling unit that includes a cold plate extending in a first direction; a pump and a tank disposed on one side in a second direction perpendicular to the first direction of the cold plate; and a partition member extending in the first direction and covering the cold plate on one side in the second direction. The cold plate includes a first refrigerant flow path through which a refrigerant flows from one side to the other side in the first direction. The pump includes a pump chamber where a rotating body transferring the refrigerant is accommodated. The tank includes a tank chamber storing the refrigerant and a first tank hole part communicating with the pump chamber. The partition member includes a first hole part that communicates the first flow path and the tank chamber and is provided on one side in the first direction with respect to the first hole part.Type: ApplicationFiled: October 16, 2019Publication date: April 30, 2020Applicant: NIDEC CORPORATIONInventors: Toshihiko TOKESHI, Takehito TAMAOKA, Nobuya NAKAE
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Publication number: 20200124337Abstract: A cooling unit has a cold plate extending in a horizontal direction, and a tank and a pump disposed above the cold plate in a first direction perpendicular to the horizontal direction. The tank has a tank chamber which stores a refrigerant. The pump has a pump chamber in which a rotating body that transfers the refrigerant is accommodated, and an upper end of the tank chamber in the first direction is positioned at an upper side than an upper end of the pump chamber in the first direction.Type: ApplicationFiled: October 8, 2019Publication date: April 23, 2020Applicant: NIDEC CORPORATIONInventors: Toshihiko TOKESHI, Takehito TAMAOKA, Nobuya NAKAE
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Publication number: 20200116430Abstract: Provided is a cooling device which includes a plurality of cooling units and a blocking member and in which at least a portion of the blocking member is disposed between the cooling units.Type: ApplicationFiled: October 8, 2019Publication date: April 16, 2020Applicant: NIDEC CORPORATIONInventors: Nobuya NAKAE, Toshihiko TOKESHI, Takahiro IMANISHI, Akihiko MAKITA, Takehito TAMAOKA
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Publication number: 20190307019Abstract: A cooling apparatus includes a cold plate including a lower surface to be in contact with a heat-radiating component, and a first coolant passage in which a coolant flows, a radiator including fins to perform cooling and pipes each defining a second coolant passage in communication with the first coolant passage, a pump to circulate the coolant, a first tank joined to one end of each of the pipes, and a second tank to join another end of each of the pipes to the pump. The radiator is provided on the cold plate, and the pump is adjacent to the second tank.Type: ApplicationFiled: March 11, 2019Publication date: October 3, 2019Inventors: Nobuya NAKAE, Akihiko MAKITA, Hidenobu TAKESHITA, Tomotsugu SUGIYAMA, Toshihiko TOKESHI, Takehito TAMAOKA