Patents by Inventor Yudai MORIKAWA
Yudai MORIKAWA 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: 10920998Abstract: An outdoor unit for an air-conditioning apparatus includes a body frame having, in a side face, an air inlet from which outside air is suctioned, the body frame including a hanger-receiving portion in an upper part, the hanger-receiving portion including a beam-like supporting part; an outdoor heat exchanger provided inside the body frame and extending along the air inlet; a hanging portion engaging with the outdoor heat exchanger; and a connecting element connecting the hanger-receiving portion and the hanging portion to each other. The outdoor heat exchanger is supported by the hanger-receiving portion through the hanging portion and the connecting element.Type: GrantFiled: February 20, 2017Date of Patent: February 16, 2021Assignee: Mitsubishi Electric CorporationInventors: Yutaka Aoyama, Yudai Morikawa, Takahiro Yano, Motoya Nakahara, Keizo Kamada
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Publication number: 20210017751Abstract: The toilet seat device includes a function unit arranged in a rear part of the toilet; a toilet seat rotatably attached to the function unit; and a private parts cleaning mechanism part provided in the function unit and having a private parts cleaning function. The private parts cleaning mechanism part has a cleaning water flow passage through which cleaning water flows, the cleaning water flow passage is formed with an air gap that opens the cleaning water flow passage to atmosphere, and the air gap is connectable to a tube member for injecting a descaling agent for removing scale accumulated in the cleaning water flow passage.Type: ApplicationFiled: March 27, 2019Publication date: January 21, 2021Applicant: LIXIL CorporationInventors: Yudai MORIKAWA, Koichi TAKESHITA, Yuji SAITO, Hiroshi NISHIGAKI
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Patent number: 10697568Abstract: A refrigerant pipe is provided to be capable of preventing a change in a length by which the refrigerant pipe is inserted after the refrigerant pipe is inserted. The refrigerant pipe includes a heat-exchanger-side pipe having a pipe component insertion flare formed at an end portion of the heat-exchanger-side pipe and at least one protrusion formed on an inner peripheral portion of the pipe component insertion flare, and a pipe component having a smaller outer diameter than an inner diameter of the pipe component insertion flare. A height of the at least one protrusion is greater than a dimension of a clearance defined on the basis of a difference between the inner diameter of the pipe component insertion flare and the outer diameter of the pipe component. The pipe component is inserted into the pipe component insertion flare, and the pipe component has a groove formed by the at least one protrusion.Type: GrantFiled: September 25, 2014Date of Patent: June 30, 2020Assignee: Mitsubishi Electric CorporationInventors: Takashi Nakajima, Nobuaki Miyake, Yudai Morikawa
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Patent number: 10605467Abstract: An outdoor unit for an air-conditioning apparatus prevents dew condensation water from remaining at a lower portion of a heat exchanger and prevents the flow rate of air passing through the heat exchanger from being decreased, and a method of producing the outdoor unit for an air-conditioning apparatus. The outdoor unit includes a housing including a bottom plate, and a frame at an upper end portion of the housing, a heat exchanger including a plurality of fins arranged in parallel at intervals and heat-transfer pipes penetrating the plurality of fins, and a support member including a first support portion engaged with the frame, a fourth support piece perpendicularly extending from the first support portion, and an engagement piece erected on the fourth support piece and holding the heat-transfer pipes, and the support member supports the heat exchanger such that the heat exchanger is away from the bottom plate.Type: GrantFiled: June 16, 2015Date of Patent: March 31, 2020Assignee: Mitsubishi Electric CorporationInventors: Yudai Morikawa, Shinji Kobayashi, Yutaka Aoyama
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Publication number: 20190360704Abstract: An outdoor unit for an air-conditioning apparatus includes a body frame having, in a side face, an air inlet from which outside air is suctioned, the body frame including a hanger-receiving portion in an upper part, the hanger-receiving portion including a beam-like supporting part; an outdoor heat exchanger provided inside the body frame and extending along the air inlet; a hanging portion engaging with the outdoor heat exchanger; and a connecting element connecting the hanger-receiving portion and the hanging portion to each other. The outdoor heat exchanger is supported by the hanger-receiving portion through the hanging portion and the connecting element.Type: ApplicationFiled: February 20, 2017Publication date: November 28, 2019Inventors: Yutaka AOYAMA, Yudai MORIKAWA, Takahiro YANO, Motoya NAKAHARA, Keizo KAMADA
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Publication number: 20190346208Abstract: A heat exchanger includes plural heat exchanger cores, each of which includes plural tabular fins with notches formed therein and plural heat transfer tubes. The plural fins are disposed such that planes of the fins face each other. The plural heat transfer tubes are hairpin tubes each of which is bent in a U-shape. The hairpin tubes are placed in the notches in the fins so as to extend in a direction crossing the planes of the fins. The plural heat exchanger cores are placed side by side in a direction crossing the direction of the notches in the fins and at the same time a direction along the planes of the fins. A brazing sheet is disposed between adjacent ones of the heat exchanger cores. The adjacent ones of the heat exchanger cores are brazed together by the brazing sheet.Type: ApplicationFiled: January 27, 2017Publication date: November 14, 2019Inventors: Ryoichi IKEDA, Teruaki KONAGAYOSHI, Ryohei KAWABATA, Mizuki TSUKUSHI, Yudai MORIKAWA
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Patent number: 10463208Abstract: A toilet seat/toilet lid device includes a toilet seat and a toilet lid that are provided to be pivotable with respect to a toilet between an erected state and a laid state; a toilet seat drive device that is configured to cause the toilet seat to pivot; a toilet seat pivot shaft that extends from the toilet seat drive device to one side of the toilet in a width direction, pivotably supports the toilet seat and supports the toilet lid; a toilet lid drive device that is configured to cause the toilet lid to pivot; and a toilet lid pivot shaft that extends from the toilet lid drive device to the other side of the toilet in the width direction, pivotably supports the toilet lid, and supports the toilet seat.Type: GrantFiled: January 4, 2017Date of Patent: November 5, 2019Assignee: LIXIL CorporationInventors: Yudai Morikawa, Isato Hirasawa
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Patent number: 10441118Abstract: Provided is a method of manufacturing a toilet seat that is formed by joining together a seat front member and a seat rear member. The method includes a cutting step of forming a processed surface of a joint part between the seat front member and the seat rear member by cutting the joint part between the seat front member and the seat rear member with a cutting tool having a curved cutting blade part such that the shape of the processed surface is formed in a curved shape in which the seat rear member side thereof protrudes outward in a cross section perpendicular to the direction in which the joint part extends.Type: GrantFiled: August 23, 2016Date of Patent: October 15, 2019Assignee: LIXIL CorporationInventors: Akitaka Hamajima, Yudai Morikawa, Motoki Kagawa, Toshiaki Ikeda, Ryuichi Yokoi, Kouta Higuchi, Ryosuke Nakamura, Ryosuke Suzuki
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Patent number: 10267527Abstract: Provided is an outdoor unit for an air-conditioning apparatus, including a heat exchanger having heat exchanger cores stacked in a plurality of stages in a vertical direction of the outdoor unit. Each of the heat exchanger cores includes: a plurality of fins arranged in parallel to each other at intervals therebetween; and heat transfer tubes provided to extend through the fins, through which refrigerant is caused to flow. Each of the fins of the heat exchanger includes a deformable portion configured to be deformable by impacts applied to the deformable portion, which is formed at a position where the fins of the upper one of the heat exchanger cores from among the vertically-adjacent heat exchanger cores comes into contact with the fins of the lower one of the heat exchanger cores from among the vertically-adjacent heat exchanger cores.Type: GrantFiled: June 4, 2014Date of Patent: April 23, 2019Assignee: Mitsubishi Electric CorporationInventors: Yutaka Aoyama, Yudai Morikawa
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Publication number: 20190000284Abstract: A toilet seat/toilet lid device includes a toilet seat and a toilet lid that are provided to be pivotable with respect to a toilet between an erected state and a laid state; a toilet seat drive device that is configured to cause the toilet seat to pivot; a toilet seat pivot shaft that extends from the toilet seat drive device to one side of the toilet in a width direction, pivotably supports the toilet seat and supports the toilet lid; a toilet lid drive device that is configured to cause the toilet lid to pivot; and a toilet lid pivot shaft that extends from the toilet lid drive device to the other side of the toilet in the width direction, pivotably supports the toilet lid, and supports the toilet seat.Type: ApplicationFiled: January 4, 2017Publication date: January 3, 2019Applicant: LIXIL CorporationInventors: Yudai MORIKAWA, Isato HIRASAWA
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Publication number: 20180220857Abstract: Provided is a method of manufacturing a toilet seat that is formed by joining together a seat front member and a seat rear member. The method includes a cutting step of forming a processed surface of a joint part between the seat front member and the seat rear member by cutting the joint part between the seat front member and the seat rear member with a cutting tool having a curved cutting blade part such that the shape of the processed surface is formed in a curved shape in which the seat rear member side thereof protrudes outward in a cross section perpendicular to the direction in which the joint part extends.Type: ApplicationFiled: August 23, 2016Publication date: August 9, 2018Applicant: LIXIL CorporationInventors: Akitaka HAMAJIMA, Yudai MORIKAWA, Motoki KAGAWA, Toshiaki IKEDA, Ryuichi YOKOI, Kouta HIGUCHI, Ryosuke NAKAMURA, Ryosuke SUZUKI
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Publication number: 20180142908Abstract: An outdoor unit for an air-conditioning apparatus prevents dew condensation water from remaining at a lower portion of a heat exchanger and prevents the flow rate of air passing through the heat exchanger from being decreased, and a method of producing the outdoor unit for an air-conditioning apparatus. The outdoor unit includes a housing including a bottom plate, and a frame at an upper end portion of the housing, a heat exchanger including a plurality of fins arranged in parallel at intervals and heat-transfer pipes penetrating the plurality of fins, and a support member including a first support portion engaged with the frame, a fourth support piece perpendicularly extending from the first support portion, and an engagement piece erected on the fourth support piece and holding the heat-transfer pipes, and the support member supports the heat exchanger such that the heat exchanger is away from the bottom plate.Type: ApplicationFiled: June 16, 2015Publication date: May 24, 2018Inventors: Yudai MORIKAWA, Shinji KOBAYASHI, Yutaka AOYAMA
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Flat tube heat exchanger and outdoor unit of air-conditioning apparatus including the heat exchanger
Patent number: 9657996Abstract: A flat tube heat exchange apparatus that has flat tubes arranged at a regular pitch in the step direction which is orthogonal to the row direction of fins. If the step direction pitch of the flat tubes is defined as Dp, the coefficient of Dp is k, and if 0<k<0.5 or 0.5<k<1, the distance between a fin end at one side in the step direction of the fins, and the center of a flat tube in the thickness direction is k·Dp, and the distance between a fin end at the other side in the step direction of the fins, and the center of a flat tube in the thickness direction is (1?k)·Dp.Type: GrantFiled: June 21, 2013Date of Patent: May 23, 2017Assignee: Mitsubishi Electric CorporationInventors: Hiroki Okazawa, Yudai Morikawa, Hiroya Ikuta, Takashi Nakajima, Hiroki Toyoshima, Takashi Kato -
Publication number: 20170114932Abstract: A refrigerant pipe is provided to be capable of preventing a change in a length by which the refrigerant pipe is inserted after the refrigerant pipe is inserted. The refrigerant pipe includes a heat-exchanger-side pipe having a pipe component insertion flare formed at an end portion of the heat-exchanger-side pipe and at least one protrusion formed on an inner peripheral portion of the pipe component insertion flare, and a pipe component having a smaller outer diameter than an inner diameter of the pipe component insertion flare. A height of the at least one protrusion is greater than a dimension of a clearance defined on the basis of a difference between the inner diameter of the pipe component insertion flare and the outer diameter of the pipe component. The pipe component is inserted into the pipe component insertion flare, and the pipe component has a groove formed by the at least one protrusion.Type: ApplicationFiled: September 25, 2014Publication date: April 27, 2017Inventors: Takashi NAKAJIMA, Nobuaki MIYAKE, Yudai MORIKAWA
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Publication number: 20160131371Abstract: Provided is an outdoor unit for an air-conditioning apparatus, including a heat exchanger having heat exchanger cores stacked in a plurality of stages in a vertical direction of the outdoor unit. Each of the heat exchanger cores includes: a plurality of fins arranged in parallel to each other at intervals therebetween; and heat transfer tubes provided to extend through the fins, through which refrigerant is caused to flow. Each of the fins of the heat exchanger includes a deformable portion configured to be deformable by impacts applied to the deformable portion, which is formed at a position where the fins of the upper one of the heat exchanger cores from among the vertically-adjacent heat exchanger cores comes into contact with the fins of the lower one of the heat exchanger cores from among the vertically-adjacent heat exchanger cores.Type: ApplicationFiled: June 4, 2014Publication date: May 12, 2016Inventors: Yutaka AOYAMA, Yudai MORIKAWA
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Patent number: D757915Type: GrantFiled: October 29, 2013Date of Patent: May 31, 2016Assignee: Mitsubishi Electric CorporationInventors: Yudai Morikawa, Tomoki Inagaki, Hiroki Okazawa
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Patent number: D814002Type: GrantFiled: March 31, 2017Date of Patent: March 27, 2018Assignee: Mitsubishi Electric CorporationInventors: Yudai Morikawa, Yutaka Aoyama
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Patent number: D814003Type: GrantFiled: March 31, 2017Date of Patent: March 27, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yudai Morikawa, Yutaka Aoyama
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Patent number: D814004Type: GrantFiled: March 31, 2017Date of Patent: March 27, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yudai Morikawa, Yutaka Aoyama
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Patent number: D814005Type: GrantFiled: March 31, 2017Date of Patent: March 27, 2018Assignee: Mitsubishi Electric CorporationInventors: Yudai Morikawa, Yutaka Aoyama