Patents by Inventor Takahiro Seto
Takahiro Seto 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: 10124650Abstract: An automobile air conditioner allows two types of heating devices for air heating (a heater core 14 and a PTC heater 15) to be selectively mounted therein. A housing 2 of a HVAC unit 1 defines therein an air feed passage 3. Either of the heater core 14 and the PTC heater 15 is selectively mounted in the housing 2 through an insertion/ejection slot 32, which formed in a side surface the housing 2. The insertion/ejection slot 32 is formed so as to fit the heater core 14. The PTC heater 15 is housed in a frame 33 having an external dimension to fit into the insertion/ejection slot 32, and mounted in the housing 2 with the frame 33 interposed therebetween. The frame 33 has temperature sensor holders 34.Type: GrantFiled: February 6, 2015Date of Patent: November 13, 2018Assignees: Sanden Holdings Corporation, Keihin CorporationInventors: Masao Watanabe, Takahiro Seto
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Publication number: 20170072771Abstract: An automobile air conditioner allows two types of heating devices for air heating (a heater core 14 and a PTC heater 15) to be selectively mounted therein. A housing 2 of a HVAC unit 1 defines therein an air feed passage 3. Either of the heater core 14 and the PTC heater 15 is selectively mounted in the housing 2 through an insertion/ejection slot 32, which formed in a side surface the housing 2. The insertion/ejection slot 32 is formed so as to fit the heater core 14. The PTC heater 15 is housed in a frame 33 having an external dimension to fit into the insertion/ejection slot 32, and mounted in the housing 2 with the frame 33 interposed therebetween. The frame 33 has temperature sensor holders 34.Type: ApplicationFiled: February 6, 2015Publication date: March 16, 2017Applicants: Sanden Holdings Corporation, Keihin CorporationInventors: Masao WATANABE, Takahiro SETO
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Patent number: 9381786Abstract: A vehicular air conditioning apparatus may include a case which forms a passage for conditioned air that flows toward a vehicle interior; a partition plate which divides a space inside the case; a sliding door which moves to change a flow of the conditioned air inside the case; a rack gear provided on the sliding door; and a pinion gear which moves the sliding door by rotating while being engaged with the rack gear. The partition plate may have a guide which slidably supports an end portion of the sliding door. The case may have a seal member, and the sliding door and the seal member may be disposed to slidably oppose each other. The guide may have a cut-out portion in which the seal member is disposed, and an auxiliary guide may be provided in the cut-out portion.Type: GrantFiled: August 16, 2011Date of Patent: July 5, 2016Assignee: KEIHIN CORPORATIONInventor: Takahiro Seto
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Patent number: 9174511Abstract: A vehicular air conditioning apparatus is equipped with a casing having respective air passages therein, and first and second blower units are connected to the casing. Further, the casing is constituted by first and second divided casings. In addition, air is supplied to the interior of the casing from the first and second blower units. Moisture, which is generated when the air is cooled by an evaporator, is guided to forward bottom surfaces of the first and second divided casings and the moisture is discharged to the exterior from first drain ports disposed at terminal end positions of inclined surfaces that decline gradually toward opposite sides of the casing.Type: GrantFiled: July 10, 2009Date of Patent: November 3, 2015Assignee: KEIHIN CORPORATIONInventor: Takahiro Seto
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Patent number: 8997838Abstract: In a vehicular air conditioning apparatus, a pair of covers are provided on the respective sides of the casing that is constituted by respective air passages. The covers rotatably support a pivot shaft for a defroster damper and a pivot shaft for a sub-defroster damper. The sub-defroster damper is disposed in a passage directly connecting the heater core with the defroster blow-out port, and is disposed on an upstream side of the defroster damper. First and second blower units supply air into the casing. The sub-defroster damper is disposed so as to face a passage which is disposed even inside the casing. Thus, the flowing direction and the amount of air is adjusted.Type: GrantFiled: July 10, 2009Date of Patent: April 7, 2015Assignees: Keihin Corporation, Honda Motor Co., Ltd.Inventors: Takahiro Seto, Junichi Kanemaru, Shinji Kakizaki
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Patent number: 8689860Abstract: In a vehicular air conditioning apparatus, a first blower unit is connected by a connection duct to a side of a casing constituted by respective air passages. On a lower portion of the casing, a second blower unit different from the first blower unit is connected. A center plate is disposed centrally in a lateral direction of the casing. Air is supplied from the first blower unit to the interior of the casing, whereby cool air cooled by an evaporator and warm air heated by a heater core are mixed together and blown respectively and separately to a driver's seat side and a passenger seat side of the front seats. Also, Air supplied from the second blower unit to the interior of the casing, after being adjusted to a predetermined temperature in the evaporator and the heater core, is supplied to a rear seat side of the vehicle.Type: GrantFiled: July 10, 2009Date of Patent: April 8, 2014Assignees: Keihin Corporation, Honda Motor Co., Ltd.Inventors: Takahiro Seto, Junichi Kanemaru, Shinji Kakizaki
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Patent number: 8662158Abstract: In a vehicular air conditioning apparatus, a first partitioning member and a second partitioning member are installed at a boundary position between a first cooling section and a second cooling section of an evaporator. The evaporator is separated into the first cooling section and the second cooling section by the first and second partitioning members. In the case that air is not blown in either one of the passages that are disposed in the first cooling section and the second cooling section, air that flows through the other of the passages is prevented from flowing into the one passage through the interior of the evaporator.Type: GrantFiled: July 10, 2009Date of Patent: March 4, 2014Assignees: Keihin Corporation, Honda Motor Co., Ltd.Inventors: Takahiro Seto, Yoji Katsuki, Tsunetoshi Kitamura, Junichi Kanemaru, Shinji Kakizaki
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Patent number: 8544528Abstract: In a vehicular air conditioning apparatus, a first blower unit is connected by a connection duct to a side portion of a casing having respective air passages defined therein, and a second blower unit separate from the first blower unit is connected to a lower portion of the casing. In addition, air is supplied to the interior of the casing from the first blower unit and is cooled by a first cooling section of an evaporator, whereas air that is supplied from the second blower unit is cooled by passing through a second cooling section in the evaporator, which is separated from the first cooling section by a pair of first and second partitioning members.Type: GrantFiled: July 10, 2009Date of Patent: October 1, 2013Assignee: Keihin CorporationInventors: Takahiro Seto, Takesi Habasita
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Publication number: 20130149953Abstract: A vehicular air conditioning apparatus may include a case which forms a passage for conditioned air that flows toward a vehicle interior; a partition plate which divides a space inside the case; a sliding door which moves to change a flow of the conditioned air inside the case; a rack gear provided on the sliding door; and a pinion gear which moves the sliding door by rotating while being engaged with the rack gear. The partition plate may have a guide which slidably supports an end portion of the sliding door. The case may have a seal member, and the sliding door and the seal member may be disposed to slidably oppose each other. The guide may have a cut-out portion in which the seal member is disposed, and an auxiliary guide may be provided in the cut-out portion.Type: ApplicationFiled: August 16, 2011Publication date: June 13, 2013Applicant: KEIHIN CORPORATIONInventor: Takahiro Seto
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Patent number: 8443872Abstract: In an evaporator that constitutes part of a vehicular air conditioning apparatus, first fins having louvers therein are arranged between first and second tubes. Together therewith, a second fin, which does not have any louvers therein, is provided at a boundary portion between a first cooling section, which faces toward a first front passage through which air from a first blower unit flows, and a second cooling section, which faces toward a first rear passage through which air from a second blower unit flows. In addition, air is supplied to the interior of a casing from the first blower unit and is cooled by the first cooling section, which is partitioned by the second fin, whereas air supplied from the second blower unit passes through the second cooling section, which is partitioned from the first cooling section by the second fin.Type: GrantFiled: September 29, 2009Date of Patent: May 21, 2013Assignee: Keihin CorporationInventor: Takahiro Seto
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Patent number: 8443873Abstract: In a heater core that constitutes part of a vehicular air conditioning apparatus, a plurality of first and second tubes are provided through which heated water flows through the interior thereof, and fins having louvers therein are disposed between the first and second tubes. Further, the heater core is equipped with a first heating section, which faces toward a first front passage through which air from a first blower unit flows, and a second heating section, which faces toward a first rear passage through which air from a second blower unit flows. Between the first heating section and the second heating section, a partitioning fin is disposed for blocking communication of air mutually between the first and second heating sections. Additionally, the first and second tubes are arranged in parallel to the direction in which the partitioning fin extends.Type: GrantFiled: December 2, 2009Date of Patent: May 21, 2013Assignees: Keihin Corporation, Honda Motor Co., Ltd.Inventors: Kyosuke Nanaumi, Takahiro Seto, Tsunetoshi Kitamura, Shinji Kakizaki, Junichi Kanemaru
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Patent number: 8403029Abstract: A casing comprises substantially symmetrical first and second divided casings. A second blower unit is provided at a joined region of the first divided casing and the second divided casing. Air is supplied from a first blower unit into the casing, and then, the air cooled by an evaporator and the air heated by a heater core are mixed and supplied to front seats in the vehicle. Air supplied from the second blower unit into the casing is directed toward the front seats and adjusted at a given temperature by a second cooling section of the evaporator and a second heating section of the heater core, and thereafter, supplied to rear seats in the vehicle from a third rear passage which extends so as to surround a first rear passage.Type: GrantFiled: July 10, 2009Date of Patent: March 26, 2013Assignees: Keihin Corporation, Honda Motor Co., Ltd.Inventors: Kyosuke Nanaumi, Takahiro Seto, Junichi Kanemaru, Shinji Kakizaki
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Patent number: 8397795Abstract: In a heater core that constitutes part of a vehicular air conditioning apparatus, first and second fins having louvers therein are arranged between a plurality of tubes. The first fins are disposed on a first heating section, which faces toward a first front passage through which air from a first blower unit flows, whereas the second fins are disposed on a second heating section, which faces toward a first rear passage through which air from a second blower unit flows. Further, as a boundary portion between the first heating section and the second heating section, partitioning fins, which do not contain any louvers therein, are disposed separately from the first and second fins.Type: GrantFiled: October 15, 2009Date of Patent: March 19, 2013Assignee: Keihin CorporationInventor: Takahiro Seto
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Patent number: 8376037Abstract: Air is supplied to the interior of a casing from first and second blower units, such that cool air that has been cooled by an evaporator and warm air that has been heated by a heater core are mixed together and blown out toward a front seat side and a rear seat side of the vehicle, respectively. At this time, a temperature control damper, which adjusts the temperature of air that is blown into the vehicle compartment, causes a flow of warm air having undergone heat exchange in the heater core to be deflected toward a direction where the evaporator is installed. Mixing of the warm air and the cool air can thus be carried out suitably by causing the flow of cool air, which has undergone heat exchange in the evaporator, and the flow of warm air to be oriented in mutually opposite directions.Type: GrantFiled: July 10, 2009Date of Patent: February 19, 2013Assignees: Keihin Corporation, Honda Motor Co., Ltd.Inventors: Kyosuke Nanaumi, Takahiro Seto, Tsunetoshi Kitamura, Junichi Kanemaru, Shinji Kakizaki
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Patent number: 8267757Abstract: In a vehicular air conditioning apparatus, a first blower unit is connected by a connection duct to a side portion of a casing constituted by respective air passages, and a second blower unit separate from the first blower unit is connected to a lower portion of the casing. The first blower unit adjusts an inflow rate of external air by means of an adjustment damper, which is disposed to face toward an opening of a duct, and the external air flows into the casing through an intake damper.Type: GrantFiled: July 10, 2009Date of Patent: September 18, 2012Assignees: Keihin Corporation, Honda Motor Co., Ltd.Inventors: Takahiro Seto, Hiroto Suzuki, Junichi Kanemaru, Shinji Kakizaki
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Publication number: 20110127009Abstract: In a heater core that constitutes part of a vehicular air conditioning apparatus, a plurality of first and second tubes are provided through which heated water flows through the interior thereof, and fins having louvers therein are disposed between the first and second tubes. Further, the heater core is equipped with a first heating section, which faces toward a first front passage through which air from a first blower unit flows, and a second heating section, which faces toward a first rear passage through which air from a second blower unit flows. Between the first heating section and the second heating section, a partitioning fin is disposed for blocking communication of air mutually between the first and second heating sections. Additionally, the first and second tubes are arranged in parallel to the direction in which the partitioning fin extends.Type: ApplicationFiled: December 2, 2009Publication date: June 2, 2011Applicants: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.Inventors: Kyosuke Nanaumi, Takahiro Seto, Tsunetoshi Kitamura, Shinji Kakizaki, Junichi Kanemaru
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Publication number: 20110088880Abstract: In a heater core that constitutes part of a vehicular air conditioning apparatus, first and second fins having louvers therein are arranged between a plurality of tubes. The first fins are disposed on a first heating section, which faces toward a first front passage through which air from a first blower unit flows, whereas the second fins are disposed on a second heating section, which faces toward a first rear passage through which air from a second blower unit flows. Further, as a boundary portion between the first heating section and the second heating section, partitioning fins, which do not contain any louvers therein, are disposed separately from the first and second fins.Type: ApplicationFiled: October 15, 2009Publication date: April 21, 2011Applicant: KEIHIN CORPORATIONInventor: Takahiro Seto
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Publication number: 20110073273Abstract: In an evaporator that constitutes part of a vehicular air conditioning apparatus, first fins having louvers therein are arranged between first and second tubes. Together therewith, a second fin, which does not have any louvers therein, is provided at a boundary portion between a first cooling section, which faces toward a first front passage through which air from a first blower unit flows, and a second cooling section, which faces toward a first rear passage through which air from a second blower unit flows. In addition, air is supplied to the interior of a casing from the first blower unit and is cooled by the first cooling section, which is partitioned by the second fin, whereas air supplied from the second blower unit passes through the second cooling section, which is partitioned from the first cooling section by the second fin.Type: ApplicationFiled: September 29, 2009Publication date: March 31, 2011Applicant: KEIHIN CORPORATIONInventor: Takahiro Seto
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Publication number: 20110073281Abstract: In an evaporator that constitutes part of a vehicular air conditioning apparatus, a sensor is provided, which is capable of detecting the temperature in the evaporator. In the evaporator, the sensor is installed on a back surface side thereof facing a downstream side, and on a first cooling section, through which air from a first blower unit flows. Also, the sensor is installed at a position in the vicinity of a supply conduit that supplies a coolant medium with respect to the evaporator. At a region where a maximum low temperature in the evaporator occurs, and for which there is a fear of freezing due to moisture contained within the air, the temperature is detected by the sensor.Type: ApplicationFiled: September 29, 2009Publication date: March 31, 2011Applicant: KEIHIN CORPORATIONInventor: Takahiro Seto
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Publication number: 20110005711Abstract: In a vehicular air conditioning apparatus, a pair of covers are provided on the respective sides of the casing that is constituted by respective air passages. The covers rotatably support a pivot shaft for a defroster damper and a pivot shaft for a sub-defroster damper. The sub-defroster damper is disposed in a passage directly connecting the heater core with the defroster blow-out port, and is disposed on an upstream side of the defroster damper. First and second blower units supply air into the casing. The sub-defroster damper is disposed so as to face a passage which is disposed even inside the casing. Thus, the flowing direction and the amount of air is adjusted.Type: ApplicationFiled: July 10, 2009Publication date: January 13, 2011Applicants: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.Inventors: Takahiro SETO, Junichi KANEMARU, Shinji KAKIZAKI