Patents by Inventor Mitsuhiro Shirota
Mitsuhiro Shirota 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: 20240093886Abstract: An air conditioner according to an aspect of the present disclosure includes a wall-mounted indoor unit which includes a heat exchanger, a blower, and a housing that accommodates the heat exchanger and the blower therein, and which is fixed to a wall surface, and a discharge unit which is disposed above the indoor unit outside the indoor unit, in which the housing includes a suction port that opens upward, the discharge unit includes a discharge device disposed above the suction port, at least a portion of air suctioned into the suction port passes through the discharge device, and a center of the discharge unit in a right-left direction of the indoor unit is disposed to be shifted to one side in the right-left direction with respect to a center of the indoor unit.Type: ApplicationFiled: April 20, 2021Publication date: March 21, 2024Inventors: Reiji MORIOKA, Mitsuhiro SHIROTA, Hirotaka ISHIDA, Shinji KAWAI, Hisanori IKEDA
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Publication number: 20240077213Abstract: An air conditioner according to an aspect of the present disclosure includes a wall-mounted indoor unit which includes a heat exchanger, a blower, and a housing that accommodates the heat exchanger and the blower therein, and which is fixed to a wall surface, and a discharge unit which is disposed above the indoor unit outside the indoor unit, in which the indoor unit includes a first control unit that controls the indoor unit, the housing includes a suction port that opens upward, the discharge unit includes a discharge device disposed above the suction port, at least a portion of air suctioned into the suction port passes through the discharge device, and the discharge device is driven based on a signal received from the first control unit.Type: ApplicationFiled: April 20, 2021Publication date: March 7, 2024Inventors: Reiji MORIOKA, Mitsuhiro SHIROTA, Hirotaka ISHIDA, Shinji KAWAI, Hisanori IKEDA
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Patent number: 11149966Abstract: An indoor unit of an air-conditioning apparatus includes a casing with air inlet and air outlet. A heat exchanger in the casing exchanges heat with air sucked through the air inlet, an air-sending fan blows the heat exchanged air through the air outlet, and a vertical air-directing plate in the air outlet sets a vertical air flow direction in which the heat exchanged air is blown. The casing has a front panel, a bottom panel, and a forward-facing panel connected to the bottom panel at an angle. The air outlet extends from the bottom panel to the forward-facing panel; a lower corner at which joins the bottom panel and an air-outlet side walk; and a forward-facing corner joins the forward-facing panel and the air-outlet side wall. The lower corner and the forward-facing corner each have an edge removed. A forward-facing corner edge-removal dimension smaller than a lower corner edge-removal dimension.Type: GrantFiled: March 9, 2017Date of Patent: October 19, 2021Assignee: Mitsubishi Electric CorporationInventors: Takahiro Shishido, Mitsuhiro Shirota, Shogo Namatame
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Patent number: 11118791Abstract: An indoor unit of an air-conditioning apparatus according to the present invention includes a casing having an air inlet provided at a top face, an air outlet provided at a lower portion, and an airflow passage through which the air inlet and the air outlet communicate with each other; a fan disposed in the casing; a heat exchanger disposed upstream of the fan in the casing; a first filter disposed upstream of the heat exchanger in the casing; a front panel attached at a front portion of the casing; a protrusion provided on a back face of the front panel; and a second filter disposed behind the front panel and between the protrusion and the heat exchanger, the second filter being separate from the first filter.Type: GrantFiled: March 3, 2017Date of Patent: September 14, 2021Assignee: Mitsubishi Electric CorporationInventor: Mitsuhiro Shirota
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Patent number: 10895388Abstract: An indoor unit for an air-conditioning apparatus, which prevents adhesion of dew condensation water to up-and-down airflow direction louvers while directing blowing air to an intended direction, includes: a casing; an air inlet; an air outlet; an indoor heat exchanger and an indoor fan; an up-and-down airflow direction louver; and an up-and-down airflow direction auxiliary louver. The up-and-down airflow direction louver includes: an upstream guide surface and a downstream guide surface. The up-and-down airflow direction auxiliary louver includes an upstream end portion, the upstream end portion being positioned on an inner side of the air outlet passage relative to the downstream guide surface and being positioned on the upstream side relative to a downstream guide surface distal end portion of the downstream guide surface, which is an end portion of the downstream guide surface on the downstream side of the air outlet passage.Type: GrantFiled: February 3, 2016Date of Patent: January 19, 2021Assignee: Mitsubishi Electric CorporationInventors: Mitsuhiro Shirota, Takashi Ikeda, Takahiro Shishido
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Patent number: 10816238Abstract: An indoor unit of an air-conditioning apparatus eliminates a possibility of condensation on a front panel without deteriorating a quality of design. In an off state, an auxiliary air-directing plate is positioned above an up-down air-directing plate inside an air outlet such that a free end of the auxiliary air-directing plate opposite from one end of the auxiliary air-directing plate fixed to a rotating shaft is positioned closer to a rear surface of a casing than is the rotating shaft. In an on state, the auxiliary air-directing plate is rotated in a direction from the rear surface to a front surface of the casing, and the free end is protruded from the air outlet to an outside of the casing.Type: GrantFiled: December 1, 2015Date of Patent: October 27, 2020Assignee: Mitsubishi Electric CorporationInventors: Yusuke Adachi, Takahiro Shishido, Mitsuhiro Shirota, Takashi Ikeda, Yoshinori Tanikawa
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Patent number: 10724759Abstract: An indoor unit for an air-conditioning apparatus includes: a casing, which is to be attached to a wall in a room at a back surface side of the casing; an air inlet and an air outlet, which are formed in the casing; an indoor heat exchanger and an indoor fan, which are arranged in an air passage continuous from the air inlet to the air outlet; an up-and-down airflow direction plate, which is provided in the air outlet so as to be turnable, forms an air outlet passage for blowing air to be blown out through the air outlet in a region located below the air outlet, and is configured to change a direction of the blowing air; and an up-and-down airflow direction assist plate, forms the air outlet passage and is configured to change the direction of the blowing air between the up and down directions.Type: GrantFiled: February 2, 2016Date of Patent: July 28, 2020Assignee: Mitsubishi Electric CorporationInventors: Mitsuhiro Shirota, Yuya Yamashita
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Patent number: 10670298Abstract: An air conditioner includes: a main body having an air outlet; a fan provided in the main body; a heat exchanger provided in the main body; and a first member rotatably supported on the main body and opening and closing the air outlet, wherein the first member includes a first casing having a first surface facing an inner side of the main body while operation is stopped and a second casing attached to the first casing; on the first casing, a recess is formed on the first surface and a protrusion protruding toward the second casing is formed, and the recess is positioned on an opposite side to the protrusion.Type: GrantFiled: September 10, 2015Date of Patent: June 2, 2020Assignee: Mitsubishi Electric CorporationInventors: Takashi Ikeda, Mitsuhiro Shirota, Takahiro Shishido
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Publication number: 20200124294Abstract: An indoor unit of an air-conditioning apparatus includes a casing having an air inlet, an air outlet, a front panel disposed to a front surface, a bottom panel disposed to a bottom surface, and a forward-facing panel disposed under the front panel and connected to the bottom panel at a right angle or an obtuse angle. The air outlet extends from the bottom panel to the forward-facing panel and includes a lower corner at which the bottom panel and an air-outlet side wall join together and a forward-facing corner at which the forward-facing panel and the air-outlet side wall join together. The lower corner and the forward-facing corner each have an edge removed to have an edge-removal dimension of the forward-facing corner that is smaller than an edge-removal dimension of the lower corner.Type: ApplicationFiled: March 9, 2017Publication date: April 23, 2020Inventors: Takahiro SHISHIDO, Mitsuhiro SHIROTA, Shogo NAMATAME
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Publication number: 20200018493Abstract: An indoor unit of an air-conditioning apparatus according to the present invention includes a casing having an air inlet provided at a top face, an air outlet provided at a lower portion, and an airflow passage through which the air inlet and the air outlet communicate with each other; a fan disposed in the casing; a heat exchanger disposed upstream of the fan in the casing; a first filter disposed upstream of the heat exchanger in the casing; a front panel attached at a front portion of the casing; a protrusion provided on a back face of the front panel; and a second filter disposed behind the front panel and between the protrusion and the heat exchanger, the second filter being separate from the first filter.Type: ApplicationFiled: March 3, 2017Publication date: January 16, 2020Inventor: Mitsuhiro SHIROTA
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Patent number: 10436496Abstract: A blade included in an impeller is formed so that, when viewed in a vertical cross-sectional view of the blade, a pressure surface of the blade and a suction surface of the blade opposite to the pressure surface are curved more in the direction in which the impeller rotates, in their areas farther from the axis of rotation of the impeller and closer to the exterior of the blade, and are arched so that a portion near the center of the blade is most distant from a straight line connecting the inner end and the outer end of the blade, the pressure surface and the suction surface form a curved surface including at least one circular arc, and a straight portion of the blade is formed to be connected to the curved surface on its one side, and extend toward the inner end of the blade on its other side.Type: GrantFiled: October 4, 2012Date of Patent: October 8, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi Ikeda, Takahide Tadokoro, Mitsuhiro Shirota, Seiji Hirakawa, Koji Yamaguchi, Koichi Umetsu
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Patent number: 10429087Abstract: An indoor unit for an air-conditioning apparatus includes a box-shaped casing having an air inlet in a top surface of the casing and an air outlet in a bottom surface of the casing, an air-sending device disposed in the casing and configured to suck in indoor air through the air inlet and blow conditioned air through the air outlet, a heat exchanger disposed in the casing and configured to cause the indoor air to exchange heat with refrigerant to supply the conditioned air, a vertical deflector, a first auxiliary vertical deflector, and a second auxiliary vertical deflector each rotatably arranged in the air outlet and configured to change an air flow direction in a vertical direction.Type: GrantFiled: February 1, 2016Date of Patent: October 1, 2019Assignee: Mitsubishi Electric CorporationInventors: Takahiro Shishido, Yusuke Adachi, Mitsuhiro Shirota, Takashi Ikeda, Yoshinori Tanikawa
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Publication number: 20190056119Abstract: An indoor unit for an air-conditioning apparatus includes a box-shaped casing having an air inlet in a top surface of the casing and an air outlet in a bottom surface of the casing, an air-sending device disposed in the casing and configured to suck in indoor air through the air inlet and blow conditioned air through the air outlet, a heat exchanger disposed in the casing and configured to cause the indoor air to exchange heat with refrigerant to supply the conditioned air, a vertical deflector, a first auxiliary vertical deflector, and a second auxiliary vertical deflector each rotatably arranged in the air outlet and configured to change an air flow direction in a vertical direction.Type: ApplicationFiled: February 1, 2016Publication date: February 21, 2019Inventors: Takahiro SHISHIDO, Yusuke ADACHI, Mitsuhiro SHIROTA, Takashi IKEDA, Yoshinori TANIKAWA
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Publication number: 20180363927Abstract: An indoor unit for an air-conditioning apparatus, which prevents adhesion of dew condensation water to up-and-down airflow direction louvers while directing blowing air to an intended direction, includes: a casing; an air inlet; an air outlet; an indoor heat exchanger and an indoor fan; an up-and-down airflow direction louver; and an up-and-down airflow direction auxiliary louver. The up-and-down airflow direction louver includes: an upstream guide surface and a downstream guide surface. The up-and-down airflow direction auxiliary louver includes an upstream end portion, the upstream end portion being positioned on an inner side of the air outlet passage relative to the downstream guide surface and being positioned on the upstream side relative to a downstream guide surface distal end portion of the downstream guide surface, which is an end portion of the downstream guide surface on the downstream side of the air outlet passage.Type: ApplicationFiled: February 3, 2016Publication date: December 20, 2018Inventors: Mitsuhiro SHIROTA, Takashi IKEDA, Takahiro SHISHIDO
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Publication number: 20180363943Abstract: An indoor unit for an air-conditioning apparatus includes: a casing, which is to be attached to a wall in a room at a back surface side of the casing; an air inlet and an air outlet, which are formed in the casing; an indoor heat exchanger and an indoor fan, which are arranged in an air passage continuous from the air inlet to the air outlet; an up-and-down airflow direction plate, which is provided in the air outlet so as to be turnable, forms an air outlet passage for blowing air to be blown out through the air outlet in a region located below the air outlet, and is configured to change a direction of the blowing air; and an up-and-down airflow direction assist plate, forms the air outlet passage and is configured to change the direction of the blowing air between the up and down directions.Type: ApplicationFiled: February 2, 2016Publication date: December 20, 2018Inventors: Mitsuhiro SHIROTA, Yuya YAMASHITA
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Publication number: 20180313572Abstract: An indoor unit of an air-conditioning apparatus eliminates a possibility of condensation on a front panel without deteriorating a quality of design. In an off state, an auxiliary air-directing plate is positioned above an up-down air-directing plate inside an air outlet such that a free end of the auxiliary air-directing plate opposite from one end of the auxiliary air-directing plate fixed to a rotating shaft is positioned closer to a rear surface of a casing than is the rotating shaft. In an on state, the auxiliary air-directing plate is rotated in a direction from the rear surface to a front surface of the casing, and the free end is protruded from the air outlet to an outside of the casing.Type: ApplicationFiled: December 1, 2015Publication date: November 1, 2018Inventors: Yusuke ADACHI, Takahiro SHISHIDO, Mitsuhiro SHIROTA, Takashi IKEDA, Yoshinori TANIKAWA
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Patent number: 10088176Abstract: In an air-conditioning device, back flow is less likely to occur at an outlet port in relation to an inlet resistance, and the air-conditioning device includes: a main body having an inlet port and an outlet port; a cross-flow fan provided inside the main body; and a heat exchanger provided inside the main body, wherein the main body includes at least a front surface, a rear surface, an upper surface and a lower surface, the inlet port is formed in the upper surface, a ratio H/Df between the main body height dimension H and the fan outer diameter Df is 2.2 to 2.7, and an angle of inclination ? between a rear part of an front upward inclination section of the heat exchanger and a vertical direction is 30° to 45°.Type: GrantFiled: October 30, 2014Date of Patent: October 2, 2018Assignee: Mitsubishi Electric CorporationInventors: Takashi Ikeda, Mitsuhiro Shirota, Takahiro Shishido, Koichi Umetsu
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Patent number: 10054128Abstract: A blower and an air conditioner that can generate airflow simulating that in the natural world are provided. The blower and the air conditioner each include: a fan configured to generate blowing air; a pair of vertical airflow direction vanes separated from each other as a left side and a right side on a front side of the fan, the pair of vertical airflow direction vanes causing the blowing air generated by the fan to be let out upward or downward; and a control section configured to drive the pair of vertical airflow direction vanes separately while varying a rotation frequency of the fan. Such configuration of the blower and the air conditioner enables generation of airflow simulating that in the natural world.Type: GrantFiled: August 6, 2013Date of Patent: August 21, 2018Assignee: Mitsubishi Electric CorporationInventors: Takuya Furuhashi, Takashi Matsumoto, Yuki Ugajin, Miho Ishikawa, Mitsuhiro Shirota
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Patent number: 10024331Abstract: A blower and an air conditioner that can generate airflow simulating that in the natural world are provided. The blower and the air conditioner each include: a fan configured to generate blowing air; a pair of vertical airflow direction vanes separated from each other as a left side and a right side on a front side of the fan, the pair of vertical airflow direction vanes causing the blowing air generated by the fan to be let out upward or downward; and a control section configured to drive the pair of vertical airflow direction vanes separately while varying a rotation frequency of the fan. Such configuration of the blower and the air conditioner enables generation of airflow simulating that in the natural world.Type: GrantFiled: August 6, 2013Date of Patent: July 17, 2018Assignee: Mitsubishi Electric CorporationInventors: Takuya Furuhashi, Takashi Matsumoto, Yuki Ugajin, Miho Ishikawa, Mitsuhiro Shirota
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Patent number: 9995303Abstract: A cross-flow fan includes an impeller and a shaft. The impeller includes a plurality of support plates and a plurality of blades. The blades are different in a blade cross section orthogonal to an impeller rotational axis, and each have a plurality of regions arranged in a direction of the impeller rotational axis and a coupling portion formed so as to couple the plurality of regions to each other. A rib is formed on the coupling portion, or formed in a region adjacent to the coupling portion within a range separated away from the coupling portion by up to 20% of a length of the region adjacent to the coupling portion in the rotational axis direction.Type: GrantFiled: November 19, 2013Date of Patent: June 12, 2018Assignee: Mitsubishi Electric CorporationInventors: Takashi Ikeda, Mitsuhiro Shirota, Takehiro Hayashi, Yoshitaka Yamaguchi