Patents by Inventor Yukio Uemura
Yukio Uemura 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: 9221318Abstract: An air conditioner for a vehicle includes a casing having therein first and second air passages through which outside air and inside air flow respectively. A heating heat exchanger is arranged in the first and second air passages to heat air. First and second air mix doors are arranged respectively in the first and second air passages to adjust a ratio between a flow amount of air passing through the heating heat exchanger and a flow amount of air bypassing the heating heat exchanger. Each of the first and second air mix doors is a slide door in which a plate door body part slides in a direction being applied by its own weight. The second air mix door slides in a sliding direction inclined relative to a sliding direction of the first air mix door by an angle toward a horizontal direction.Type: GrantFiled: July 2, 2012Date of Patent: December 29, 2015Assignee: DENSO COPORATIONInventor: Yukio Uemura
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Patent number: 8808073Abstract: An air passage open/close device includes a casing having an air passage, and a sliding door having a board member slidably located in the casing so as to open or close the air passage. The casing has a guide groove for guiding a movement of the board member. The guide groove has an upstream wall extending in a moving direction of the board member at an upstream side of the board member in an air flow direction, and a downstream wall opposing to the upstream wall at a downstream side of the board member in the air flow direction. The board member is configured to be elastically deformed when the board member is arranged in the casing.Type: GrantFiled: June 16, 2009Date of Patent: August 19, 2014Assignee: Denso CorporationInventors: Takahiro Tokunaga, Yukio Uemura, Yoshikazu Sakaki
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Publication number: 20130008627Abstract: An air conditioner for a vehicle includes a casing having therein first and second air passages through which outside air and inside air flow respectively. A heating heat exchanger is arranged in the first and second air passages to heat air. First and second air mix doors are arranged respectively in the first and second air passages to adjust a ratio between a flow amount of air passing through the heating heat exchanger and a flow amount of air bypassing the heating heat exchanger. Each of the first and second air mix doors is a slide door in which a plate door body part slides in a direction being applied by its own weight. The second air mix door slides in a sliding direction inclined relative to a sliding direction of the first air mix door by an angle toward a horizontal direction.Type: ApplicationFiled: July 2, 2012Publication date: January 10, 2013Applicant: DENSO CORPORATIONInventor: Yukio Uemura
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Patent number: 7694729Abstract: An air passage opening/closing device for a vehicle air conditioner has a casing and a slide door. The slide door is movably disposed in the casing. Both sides of the slide door are guided by guide channels provided in the casing. The guide channels are formed by the casing and a separate guide member. The slide door can be assembled by mounting the slide door on a door-sliding surface of the casing, and mounting the separate guide member on the slide door.Type: GrantFiled: December 1, 2004Date of Patent: April 13, 2010Assignee: Denso CorporationInventor: Yukio Uemura
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Publication number: 20090313899Abstract: An air passage open/close device includes a casing having an air passage, and a sliding door having a board member slidably located in the casing so as to open or close the air passage. The casing has a guide groove for guiding a movement of the board member. The guide groove has an upstream wall extending in a moving direction of the board member at an upstream side of the board member in an air flow direction, and a downstream wall opposing to the upstream wall at a downstream side of the board member in the air flow direction. The board member is configured to be elastically deformed when the board member is arranged in the casing.Type: ApplicationFiled: June 16, 2009Publication date: December 24, 2009Applicant: DENSO CORPORATIONInventors: Takahiro Tokunaga, Yukio Uemura, Yoshikazu Sakaki
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Publication number: 20080083241Abstract: An air conditioning apparatus for a vehicle has a unit case, a heat exchanger for generating a heated air, a bypass passage through which a bypass air flows while bypassing the heat exchanger, and a baffle member having first passages and second passages. The unit case has openings for introducing a conditioned air into a passenger compartment. The openings are aligned in an alignment direction across a width of the unit case. The first passages and second passages are alternately arranged in the alignment direction. One of the bypass air and the heated air has an uneven distribution of a flow speed in the alignment direction at a position upstream of the baffle member, and flows in the first passages. Widths of the first passages are varied according to the distribution of the flow speed.Type: ApplicationFiled: October 8, 2007Publication date: April 10, 2008Applicant: DENSO CorporationInventors: Kyoko Nagata, Yukio Uemura
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Patent number: 7284595Abstract: A heat source fluid inlet pipe of a heat exchanger main body 150 comprises a rotation side inlet pipe 27 and a fixed side inlet pipe 23 that are integrated with the heat exchanger main body 150. A heat source fluid outlet pipe comprises a rotation side outlet pipe 26 and a fixed side outlet pipe 22 that are integrated with the heat exchanger main body 150. These pipes 22, 23, 26 and 27 are constituted into a coaxial double-piping structure 16 and the heat exchanger main body 150 is allowed to rotate with a center axis A of this coaxial double-piping structure 16 as the center.Type: GrantFiled: June 28, 2005Date of Patent: October 23, 2007Assignee: DENSO CorporationInventors: Kenichiro Maeda, Yukio Uemura, Kei Kajiya
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Publication number: 20070144725Abstract: An automotive air conditioner comprises an offset blower for blowing an air, an evaporator is centrally disposed within a dashboard and receives the air from below, and a heater approximately horizontally disposed above the evaporator. The evaporator inclines downward along the direction of the air flow. A plurality of condensed water guide plates are provided under the evaporator so as to allow a condensed water smoothly flow on the surface of each guide plate and is discharged from the evaporator through a condensed water drain pipe.Type: ApplicationFiled: March 5, 2007Publication date: June 28, 2007Inventors: Yuichi Shirota, Hisashi Tanaka, Hiroshi Nonoyama, Kazushi Shikata, Yukio Uemura, Hikaru Sugi, Manabu Miyata, Koji Ito, Teruhiko Kameoka
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Publication number: 20070144724Abstract: An automotive air conditioner comprises an offset blower for blowing an air, an evaporator is centrally disposed within a dashboard and receives the air from below, and a heater approximately horizontally disposed above the evaporator. The evaporator inclines downward along the direction of the air flow. A plurality of condensed water guide plates are provided under the evaporator so as to allow a condensed water smoothly flow on the surface of each guide plate and is discharged from the evaporator through a condensed water drain pipe.Type: ApplicationFiled: March 5, 2007Publication date: June 28, 2007Inventors: Yuichi Shirota, Hisashi Tanaka, Hiroshi Nonoyama, Kazushi Shikata, Yukio Uemura, Hikaru Sugi, Manabu Miyata, Koji Ito, Teruhiko Kameoka
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Publication number: 20060225875Abstract: An interior of an air conditioning case is partitioned into a first air passage extending from an inside air suction port to a foot opening portion and a second air passage extending from an outside air suction port is disposed at a side of the first air passage to detect a temperature of air blown out from the evaporator disposed in the first air passage and the second air passage. An operation of the compressor for supplying the refrigerant to the evaporator is intermitted by comparing the temperature detected by the temperature sensor and the set temperature set in advance, and the set temperature is changed to be higher according to an increase in the temperature of outside air. In this way, it is possible to prevent the frosting of the evaporator in winter season, when the inside air is introduced into the first air passage and the outside air is introduced into the second air passage.Type: ApplicationFiled: June 12, 2006Publication date: October 12, 2006Inventors: Yukio Uemura, Kenji Suwa, Kazushi Shikata
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Patent number: 7082990Abstract: An interior of an air conditioning case is partitioned into a first air passage extending from an inside air suction port to a foot opening portion and a second air passage extending from an outside air suction port is disposed at a side of the first air passage to detect a temperature of air blown out from the evaporator disposed in the first air passage and the second air passage. An operation of the compressor for supplying the refrigerant to the evaporator is intermitted by comparing the temperature detected by the temperature sensor and the set temperature set in advance, and the set temperature is changed to be higher according to an increase in the temperature of outside air. In this way, it is possible to prevent the frosting of the evaporator in winter season, when the inside air is introduced into the first air passage and the outside air is introduced into the second air passage.Type: GrantFiled: October 15, 1997Date of Patent: August 1, 2006Assignee: DENSO CorporationInventors: Yukio Uemura, Kenji Suwa, Kazushi Shikata
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Publication number: 20060005959Abstract: A heat source fluid inlet pipe of a heat exchanger main body 150 comprises a rotation side inlet pipe 27 and a fixed side inlet pipe 23 that are integrated with the heat exchanger main body 150. A heat source fluid outlet pipe comprises a rotation side outlet pipe 26 and a fixed side outlet pipe 22 that are integrated with the heat exchanger main body 150. These pipes 22, 23, 26 and 27 are constituted into a coaxial double-piping structure 16 and the heat exchanger main body 150 is allowed to rotate with a center axis A of this coaxial double-piping structure 16 as the center.Type: ApplicationFiled: June 28, 2005Publication date: January 12, 2006Applicant: DENSO CorporationInventors: Kenichiro Maeda, Yukio Uemura, Kei Kajiya
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Publication number: 20050142999Abstract: An air passage opening/closing device for a vehicle air conditioner has a casing and a slide door. The slide door is movably disposed in the casing. Both sides of the slide door are guided by guide channels provided in the casing. The guide channels are formed by the casing and a separate guide member. Accordingly, the slide door can be assembled using a simple process. The simple process includes a step such that the slide door is mounted on a door-sliding surface of the casing, and another step such that the separate guide member is mounted on the slide door.Type: ApplicationFiled: December 1, 2004Publication date: June 30, 2005Inventor: Yukio Uemura
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Patent number: 6834709Abstract: An automotive air conditioner includes an offset blower for blowing an air, an evaporator is centrally disposed within a dashboard and receives the air from below, and a heater approximately horizontally disposed above the evaporator. The evaporator inclines downward along the direction of the air flow. A plurality of condensed water guide plates are provided under the evaporator so as to allow a condensed water smoothly flow on the surface of each guide plate and is discharged from the evaporator through a condensed water drain pipe.Type: GrantFiled: March 26, 2001Date of Patent: December 28, 2004Assignee: DENSO CorporationInventors: Yuichi Shirota, Hisashi Tanaka, Hiroshi Nonoyama, Kazushi Shikata, Yukio Uemura, Hikaru Sugi
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Patent number: 6811481Abstract: In an air passage switching device, a flexible film moves to traverse an air passage of an air duct, thereby switching and controlling a communication state of the air passage. A thickness t of the film, a glass transition temperature Tg thereof and a radius of curvature r thereof are set so that a relationship expressed by a formula of t≦(0.00578×Tg0.448×r0.333) is satisfied and a bending stiffness of the film is set equal to or higher than 1 &mgr;N·m2. Accordingly, the film can be restricted from being buckling-deformed and from being damaged. As a result, an air leakage amount from a clearance between the film and the air passage due to the deformation can be effectively restricted.Type: GrantFiled: September 2, 2003Date of Patent: November 2, 2004Assignee: DENSO CorporationInventors: Yukio Uemura, Tomohide Shindo
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Publication number: 20040043720Abstract: In an air passage switching device, a flexible film moves to traverse an air passage of an air duct, thereby switching and controlling a communication state of the air passage. A thickness t of the film, a glass transition temperature Tg thereof and a radius of curvature r thereof are set so that a relationship expressed by a formula of t≦(0.00578×Tg0.448×r0.333) is satisfied and a bending stiffness of the film is set equal to or higher than 1 &mgr;N·m2. Accordingly, the film can be restricted from being buckling-deformed and from being damaged. As a result, an air leakage amount from a clearance between the film and the air passage due to the deformation can be effectively restricted.Type: ApplicationFiled: September 2, 2003Publication date: March 4, 2004Inventors: Yukio Uemura, Tomohide Shindo
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Patent number: 6688964Abstract: In an air passage opening/closing device for an air conditioner, a slide door for opening and closing an opening portion of a case includes a flexible film member having a free top end that moves forward by pushing force in a door moving direction. A movement of the film member is guided along a guide ditch. The guide ditch is provided so that the film member is approached to a seal surface in a direction perpendicular to a door moving direction, in comparison with the other seal surface on a peripheral portion of the opening portion. For example, a pushing member for pushing the film member to the seal surface in the direction perpendicular to the door moving direction can be provided. Accordingly, air leakage due to a bending habit of the film member can be restricted.Type: GrantFiled: March 11, 2003Date of Patent: February 10, 2004Assignee: Denso CorporationInventors: Yukio Uemura, Tomohide Shindo, Koji Ito
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Patent number: 6669549Abstract: A ventilation controlling apparatus using a slide door made of a flexible film member to solve imperfect slide action attributable to film member rigidity degradation on the fringe of an aperture. The slide door is movably disposed inside a casing which forms an air passage, and the slide door is composed of the flexible film member provided with an air-circulation aperture. Ventilation of the air passage is controlled by varying an area of blending or connection between the aperture and the air passage in accordance with movement of the slide door. A rigid support member is fitted around the fringe of the aperture on the film member, thereby enhancing rigidity of the aperture fringe.Type: GrantFiled: June 12, 2002Date of Patent: December 30, 2003Assignee: Denso CorporationInventors: Yukio Uemura, Masaharu Yamazaki, Noriyoshi Miyajima, Tomohide Shindo, Koji Ito
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Publication number: 20030171091Abstract: In an air passage opening/closing device for an air conditioner, a slide door for opening and closing an opening portion of a case includes a flexible film member having a free top end that moves forward by pushing force in a door moving direction. A movement of the film member is guided along a guide ditch. The guide ditch is provided so that the film member is approached to a seal surface in a direction perpendicular to a door moving direction, in comparison with the other seal surface on a peripheral portion of the opening portion. For example, a pushing member for pushing the film member to the seal surface in the direction perpendicular to the door moving direction can be provided. Accordingly, air leakage due to a bending habit of the film member can be restricted.Type: ApplicationFiled: March 11, 2003Publication date: September 11, 2003Inventors: Yukio Uemura, Tomohide Shindo, Koji Ito
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Patent number: 6612922Abstract: A ventilation controlling apparatus uses a flexible film member as a slide door and an air casing design profile, to prevent generation of popping or cracking noises from emanating from the slide door due to air pressure changes against the slide door within the casing. Internal lattices may control the position of the flexible slide door. An aperture for ventilation is opened and closed by moving the slide door inside a casing. Sealing surfaces on the inner side of circumferential edge-sealing portions located at the rear and front sides of the aperture in the moving direction of the slide door are made to have a shape protruding or angled more to the downwind side of the aperture at a central portion than at end portions, with respect to a direction orthogonal to the moving direction of the slide door.Type: GrantFiled: June 25, 2002Date of Patent: September 2, 2003Assignee: Denso CorporationInventors: Yukio Uemura, Masaharu Yamazaki