Patents by Inventor Yoshihiko Seno
Yoshihiko Seno 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: 9587862Abstract: A condenser includes a first header tank, a second header tank, a third header tank, a plurality of first heat exchange tubes, a plurality of second heat exchange tubes, a refrigerant passable tubular body, and a desiccant container. The first header tank is provided on one side of the condenser and has a gas-liquid separation function. The plurality of first heat exchange tubes extend in an extending direction between the first header tank and the third header tank to connect the first header tank and the third header tank. The refrigerant passable tubular body is provided in the first header tank. An upper end of the refrigerant passable tubular body is located above an upper end of the plurality of first heat exchange tubes. The desiccant container is provided above the refrigerant passable tubular body in the first header tank.Type: GrantFiled: March 16, 2015Date of Patent: March 7, 2017Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Shingo Suzuki, Kazumi Tokizaki, Yoshihiko Seno, Takayuki Fujii
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Patent number: 9562727Abstract: A heat exchanger includes a plurality of heat exchange tubes and corrugated fins. The heat exchange tubes are spaced apart from one another in a vertical direction of the heat exchanger. The corrugated fins are each disposed between adjacent heat exchange tubes. Each of the corrugated fins includes crest portions, trough portions, and connection portions. The crest portions extend in an air passage direction of the heat exchanger. The trough portions extend in the air passage direction. The connection portions connect the crest portions and the trough portions. The number of the crest portions of each of the corrugated fins disposed between adjacent heat exchange tubes falls within a range of a designed number ±2. The designed number is a standard number.Type: GrantFiled: February 19, 2013Date of Patent: February 7, 2017Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Takayuki Fujii, Yoshihiko Seno, Shingo Suzuki
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Publication number: 20150184908Abstract: A condenser includes a first header tank, a second header tank, a third header tank, a plurality of first heat exchange tubes, a plurality of second heat exchange tubes, a refrigerant passable tubular body, and a desiccant container. The first header tank is provided on one side of the condenser and has a gas-liquid separation function. The plurality of first heat exchange tubes extend in an extending direction between the first header tank and the third header tank to connect the first header tank and the third header tank. The refrigerant passable tubular body is provided in the first header tank. An upper end of the refrigerant passable tubular body is located above an upper end of the plurality of first heat exchange tubes. The desiccant container is provided above the refrigerant passable tubular body in the first header tank.Type: ApplicationFiled: March 16, 2015Publication date: July 2, 2015Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Shingo SUZUKI, Kazumi TOKIZAKI, Yoshihiko SENO, Takayuki FUJII
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Patent number: 8991479Abstract: A first header tank to which first heat exchange tubes of second and third heat exchange paths are connected and a second header tank to which second heat exchange tubes of a first heat exchange path are connected are provided at the left end of a condenser such that the former is located on the outer side of the latter with respect to a left-right direction and is offset from the latter in an air passage direction. The upper end of the first header tank is located above the lower end of the second header tank. The first header tank has a function of separating gas and liquid and storing the liquid. The first and second heat exchange tubes and side plates are bent in the same direction about a common vertical line. This condenser is suitable for use in a car air conditioner mounted on an automobile.Type: GrantFiled: March 4, 2011Date of Patent: March 31, 2015Assignee: Showa Denko K.K.Inventors: Takayuki Fujii, Kazumi Tokizaki, Yoshihiko Seno, Shingo Suzuki
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Patent number: 8839847Abstract: A first header tank to which first heat exchange tubes of third and fourth heat exchange paths are connected and a second header tank to which second heat exchange tubes of first and second heat exchange paths are connected are provided at one end of a condenser. The upper end of the first header tank is located above the lower end of the second header tank. The first header tank has a function of separating gas and liquid from each other and storing the liquid. A spacer is disposed between the first header tank and the second header tank. The spacer includes a first portion which comes into contact with and is brazed to the first header tank, and a second portion which comes into contact with and is brazed to the second header tank.Type: GrantFiled: April 11, 2011Date of Patent: September 23, 2014Assignee: Showa Denko K.K.Inventors: Shingo Suzuki, Kazumi Tokizaki, Yoshihiko Seno, Takayuki Fujii
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Patent number: 8783335Abstract: A first header tank to which first heat exchange tubes of third and fourth heat exchange paths are connected and a second header tank to which second heat exchange tubes of first and second heat exchange paths are connected are provided at one end of a condenser. The upper end of the first header tank is located above the lower end of the second header tank. The first header tank has a function of separating gas and liquid and storing the liquid. The first heat exchange tubes have projecting portions at their ends located on the side toward the first header tank. A corrosion prevention member having a function of corroding sacrificially for the first heat exchange tubes is disposed in a clearance between the projecting portion of the upper-end first heat exchange tube and the lower end of the second header tank.Type: GrantFiled: April 11, 2011Date of Patent: July 22, 2014Assignee: Showa Denko K.K.Inventors: Shingo Suzuki, Kazumi Tokizaki, Yoshihiko Seno, Takayuki Fujii
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Patent number: 8708037Abstract: A condenser has, at one end, a first header tank to which first heat exchange tubes of third and fourth heat exchange paths are connected and a second header tank to which second heat exchange tubes of first and second heat exchange paths are connected. The upper end of the first header tank is located above the lower end of the second header tank. The first header tank has a branching control section promoting a flow of liquid-phase refrigerant from the first header tank into the first heat exchange tubes of the fourth heat exchange path. The branching control section includes a space forming member which forms a closed refrigerant inflow space communicating with the first heat exchange tubes, and a liquid accumulation space. The space forming member has a communication portion for communication between a lower portion of the refrigerant inflow space and the liquid accumulation space.Type: GrantFiled: April 11, 2011Date of Patent: April 29, 2014Assignee: Showa Denko K.K.Inventors: Kazumi Tokizaki, Takayuki Fujii, Yoshihiko Seno, Shingo Suzuki
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Publication number: 20120111547Abstract: A condenser has, at one end, a first header tank to which first heat exchange tubes of third and fourth heat exchange paths are connected and a second header tank to which second heat exchange tubes of first and second heat exchange paths are connected. The upper end of the first header tank is located above the lower end of the second header tank. A plate member fixed to the circumferential wall of the first header tank serves as a partition portion for dividing the interior of the first header tank into a first region with which the first heat exchange tubes of the fourth heat exchange path (refrigerant super-cooling path), and a second region located above the first region. An internal volume reduction portion for reducing the internal volume of the first header tank is provided in the first region. The condenser is used for a car air conditioner.Type: ApplicationFiled: November 8, 2011Publication date: May 10, 2012Applicant: SHOWA DENKO K.K.Inventors: Shingo Suzuki, Kazumi Tokizaki, Yoshihiko Seno, Takayuki Fujii
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Publication number: 20110253353Abstract: A condenser has, at one end, a first header tank to which first heat exchange tubes of third and fourth heat exchange paths are connected and a second header tank to which second heat exchange tubes of first and second heat exchange paths are connected. The upper end of the first header tank is located above the lower end of the second header tank. The first header tank has a branching control section promoting a flow of liquid-phase refrigerant from the first header tank into the first heat exchange tubes of the fourth heat exchange path. The branching control section includes a space forming member which forms a closed refrigerant inflow space communicating with the first heat exchange tubes, and a liquid accumulation space. The space forming member has a communication portion for communication between a lower portion of the refrigerant inflow space and the liquid accumulation space.Type: ApplicationFiled: April 11, 2011Publication date: October 20, 2011Applicant: SHOWA DENKO K.K.Inventors: Kazumi Tokizaki, Takayuki Fujii, Yoshihiko Seno, Shingo Suzuki
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Publication number: 20110253354Abstract: A first header tank to which first heat exchange tubes of third and fourth heat exchange paths are connected and a second header tank to which second heat exchange tubes of first and second heat exchange paths are connected are provided at one end of a condenser. The upper end of the first header tank is located above the lower end of the second header tank. The first header tank has a function of separating gas and liquid and storing the liquid. The first heat exchange tubes have projecting portions at their ends located on the side toward the first header tank. A corrosion prevention member having a function of corroding sacrificially for the first heat exchange tubes is disposed in a clearance between the projecting portion of the upper-end first heat exchange tube and the lower end of the second header tank.Type: ApplicationFiled: April 11, 2011Publication date: October 20, 2011Applicant: SHOWA DENKO K.K.Inventors: Shingo Suzuki, Kazumi Tokizaki, Yoshihiko Seno, Takayuki Fujii
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Publication number: 20110253352Abstract: A first header tank to which first heat exchange tubes of third and fourth heat exchange paths are connected and a second header tank to which second heat exchange tubes of first and second heat exchange paths are connected are provided at one end of a condenser. The upper end of the first header tank is located above the lower end of the second header tank. The first header tank has a function of separating gas and liquid from each other and storing the liquid. A spacer is disposed between the first header tank and the second header tank. The spacer includes a first portion which comes into contact with and is brazed to the first header tank, and a second portion which comes into contact with and is brazed to the second header tank.Type: ApplicationFiled: April 11, 2011Publication date: October 20, 2011Applicant: SHOWA DENKO K.K.Inventors: Shingo Suzuki, Kazumi Tokizaki, Yoshihiko Seno, Takayuki Fujii
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Publication number: 20110220335Abstract: A first header tank to which first heat exchange tubes of second and third heat exchange paths are connected and a second header tank to which second heat exchange tubes of a first heat exchange path are connected are provided at the left end of a condenser such that the former is located on the outer side of the latter with respect to a left-right direction and is offset from the latter in an air passage direction. The upper end of the first header tank is located above the lower end of the second header tank. The first header tank has a function of separating gas and liquid and storing the liquid. The first and second heat exchange tubes and side plates are bent in the same direction about a common vertical line. This condenser is suitable for use in a car air conditioner mounted on an automobile.Type: ApplicationFiled: March 4, 2011Publication date: September 15, 2011Applicant: SHOWA DENKO K.K.Inventors: Takayuki Fujii, Kazumi Tokizaki, Yoshihiko Seno, Shingo Suzuki
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Patent number: 7938173Abstract: Fixed to the peripheral wall of a header 2 of a unit-type heat exchanger 1 is a receiver connecting block 6 having channels 31, 32 for causing the interior of the header 2 to communicate with the interior of a liquid receiver 7 therethrough. The block 6 and the liquid receiver 7 have respective fixing portions 32, 36 and respective contact faces 22a, 36a each provided on the fixing portion. The outer peripheral surfaces of the fixing portions 22, 36 have respective contours of the same shape and the same size. The liquid receiver 7 is fixed to the block 6 with the contact faces 22a, 36a of the fixing portions 22, 36 in intimate contact with each other. A tubular seal member 42 having rubber elasticity is liquid-tightly fitted around the fixing portions 22, 36. The seal member 42 has an inner shape smaller than the contours of the outer peripheral surfaces of the fixing portions 22, 36 and is fitted as elastically deformed around the fixing portions 22, 36.Type: GrantFiled: May 10, 2005Date of Patent: May 10, 2011Assignee: Showa Denko K.K.Inventors: Yoshihiko Seno, Osamu Kamoshida, Takayuki Yasutake
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Publication number: 20070163760Abstract: Fixed to the peripheral wall of a header 2 of a unit-type heat exchanger 1 is a receiver connecting block 6 having channels 31, 32 for causing the interior of the header 2 to communicate with the interior of a liquid receiver 7 therethrough. The block 6 and the liquid receiver 7 have respective fixing portions 32, 36 and respective contact faces 22a, 36a each provided on the fixing portion. The outer peripheral surfaces of the fixing portions 22, 36 have respective contours of the same shape and the same size. The liquid receiver 7 is fixed to the block 6 with the contact faces 22a, 36a of the fixing portions 22, 36 in intimate contact with each other. A tubular seal member 42 having rubber elasticity is liquid-tightly fitted around the fixing portions 22, 36. The seal member 42 has an inner shape smaller than the contours of the outer peripheral surfaces of the fixing portions 22, 36 and is fitted as elastically deformed around the fixing portions 22, 36.Type: ApplicationFiled: May 10, 2005Publication date: July 19, 2007Applicant: SHOWA DENKO K.K.Inventors: Yoshihiko Seno, Osamu Kamoshida, Takayuki Yasutake
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Patent number: 6915659Abstract: A heat exchanger with a receiver-tank includes a heat exchanger main body, a receiver-tank and a block flange. The flange includes a main body, an embedding portion to be attached to one of headers in an embedded state, an inlet flow passage with an inlet side end portion disposed at an upper end of the embedding portion, the inlet flow passage communicating with a condensing portion of the heat exchanger main body, and an outlet flow passage with an outlet side end portion disposed at a side surface of the embedding portion, and the outlet flow passage communicating with a subcooling portion. A flange-like partition piece is formed at an upper end periphery of the embedding portion of the flange, and the peripheral edge of the partition piece is joined to the inner peripheral surface of one of the headers.Type: GrantFiled: February 20, 2003Date of Patent: July 12, 2005Assignee: Showa Denko K.K.Inventors: Yoshihiko Seno, Osamu Kamoshida, Keiji Yamazaki
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Patent number: 6889521Abstract: A heat exchanger with a receiver tank is provided with a multi-flow type heat-exchange body (10), a receiver tank (3), a block flange (4) having a side surface connected to the periphery of a condensing portion outlet of the heat exchanger body (10) and an upper en to which a lower end of the receiver tank (3) is attached and a bracket (6) for supporting the upper part of the receiver tank (3) to the heat exchanger body (10). A flange-shaped pressing stepped portion (31a) is formed on the upper periphery of the tank main body (31) of the receiver tank (3). The bracket (6) is provided with a joint portion (61b) to be secured to the peripheral surface of one of headers (11) and embracing portions (61a) and (62a) that surround the periphery of the tank main body (31) and are engaged with the upper side of the pressing stepped portion (31a) to downwardly press the receiver tank (3).Type: GrantFiled: March 1, 2002Date of Patent: May 10, 2005Assignee: Showa Denko K.K.Inventors: Yoshihiko Seno, Osamu Kamoshida
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Publication number: 20040200234Abstract: onents, improve the assembling work and decrease the costs.equipped with a heat exchanger main bodz 10, a receiver/tank 3 and a block flange 4. The flange 4 includes a main body 41, an embedding portion 42 to be attached to one of headers 11 in an embedded state, an inlet flow passage 4a with an inlet side end portion disposed at an upper end of the embedding portion 42, the inlet flow passage 4a communicating with a condensing portion 2 of the heat exchanger main body 10, and an outlet flow passage 4b with an outlet side end portion disposed at a side surface of the embedding portion 42, and the outlet flow passage communicating with a subcooling portion 3. A flange/like partition piece 50 is formed at an upper end periphery of the embedding portion of the flange 4, and the peripheral edge of the partition piece 50 is joined to the inner peripheral surface of one of the headers. Thus, the partition piece constitutes a partition for dividing the inside of the header.Type: ApplicationFiled: February 17, 2004Publication date: October 14, 2004Inventors: Yoshihiko Seno, Osamu Kamoshida, Keiji Yamazaki
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Publication number: 20040182553Abstract: A heat exchanger with a receiver tank is provided with a multi-flow type heat-exchange body (10), a receiver tank (3), a block flange (4) having a side surface connected to the periphery of a condensing portion outlet of the heat exchanger body (10) and an upper en to which a lower end of the receiver tank (3) is attached and a bracket (6) for supporting the upper part of the receiver tank (3) to the heat exchanger body (10). A flange-shaped pressing stepped portion (31a) is formed on the upper periphery of the tank main body (31) of the receiver tank (3). The bracket (6) is provided with a joint portion (61b) to be secured to the peripheral surface of one of headers (11) and embracing portions (61a) and (62a) that surround the periphery of the tank main body (31) and are engaged with the upper side of the pressing stepped portion (31a) to downwardly press the receiver tank (3).Type: ApplicationFiled: February 19, 2004Publication date: September 23, 2004Inventors: Yoshihiko Seno, Osamu Kamoshida
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Patent number: 6708522Abstract: A receiver-tank for use in a refrigeration cycle of this invention is provided with a filtering layer 435 formed so that an upper space 402 is formed above the filtering layer 435 in a tank main body 401. An upper end of a refrigerant outlet 441 in a tank bottom wall 421 is opened toward the upper space 402. The refrigerant flowed into the tank main body 401 from the refrigerant inlet 431 passes through the filtering layer 435 upwardly, and forms liquid-stagnation R in the upper space 402. The liquefied refrigerant of liquid-stagnation R flows out of the refrigerant outlet 441. Thereby, only the stable liquefied refrigerant can be extracted more assuredly.Type: GrantFiled: December 13, 2002Date of Patent: March 23, 2004Assignee: Showa Denko K.K.Inventors: Keiji Yamazaki, Yoshihiko Seno, Osamu Kamoshida, Yasuhiro Takahashi
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Patent number: D655728Type: GrantFiled: October 4, 2010Date of Patent: March 13, 2012Assignee: Showa Denko K.K.Inventors: Yoshihiko Seno, Shingo Suzuki, Kazumi Tokizaki, Takayuki Fujii