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).

  • Patent number: 10920998
    Abstract: 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: Grant
    Filed: February 20, 2017
    Date of Patent: February 16, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yutaka Aoyama, Yudai Morikawa, Takahiro Yano, Motoya Nakahara, Keizo Kamada
  • Publication number: 20210017751
    Abstract: 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: Application
    Filed: March 27, 2019
    Publication date: January 21, 2021
    Applicant: LIXIL Corporation
    Inventors: Yudai MORIKAWA, Koichi TAKESHITA, Yuji SAITO, Hiroshi NISHIGAKI
  • Patent number: 10697568
    Abstract: 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: Grant
    Filed: September 25, 2014
    Date of Patent: June 30, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takashi Nakajima, Nobuaki Miyake, Yudai Morikawa
  • Patent number: 10605467
    Abstract: 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: Grant
    Filed: June 16, 2015
    Date of Patent: March 31, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yudai Morikawa, Shinji Kobayashi, Yutaka Aoyama
  • Publication number: 20190360704
    Abstract: 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: Application
    Filed: February 20, 2017
    Publication date: November 28, 2019
    Inventors: Yutaka AOYAMA, Yudai MORIKAWA, Takahiro YANO, Motoya NAKAHARA, Keizo KAMADA
  • Publication number: 20190346208
    Abstract: 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: Application
    Filed: January 27, 2017
    Publication date: November 14, 2019
    Inventors: Ryoichi IKEDA, Teruaki KONAGAYOSHI, Ryohei KAWABATA, Mizuki TSUKUSHI, Yudai MORIKAWA
  • Patent number: 10463208
    Abstract: 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: Grant
    Filed: January 4, 2017
    Date of Patent: November 5, 2019
    Assignee: LIXIL Corporation
    Inventors: Yudai Morikawa, Isato Hirasawa
  • Patent number: 10441118
    Abstract: 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: Grant
    Filed: August 23, 2016
    Date of Patent: October 15, 2019
    Assignee: LIXIL Corporation
    Inventors: Akitaka Hamajima, Yudai Morikawa, Motoki Kagawa, Toshiaki Ikeda, Ryuichi Yokoi, Kouta Higuchi, Ryosuke Nakamura, Ryosuke Suzuki
  • Patent number: 10267527
    Abstract: 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: Grant
    Filed: June 4, 2014
    Date of Patent: April 23, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yutaka Aoyama, Yudai Morikawa
  • Publication number: 20190000284
    Abstract: 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: Application
    Filed: January 4, 2017
    Publication date: January 3, 2019
    Applicant: LIXIL Corporation
    Inventors: Yudai MORIKAWA, Isato HIRASAWA
  • Publication number: 20180220857
    Abstract: 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: Application
    Filed: August 23, 2016
    Publication date: August 9, 2018
    Applicant: LIXIL Corporation
    Inventors: Akitaka HAMAJIMA, Yudai MORIKAWA, Motoki KAGAWA, Toshiaki IKEDA, Ryuichi YOKOI, Kouta HIGUCHI, Ryosuke NAKAMURA, Ryosuke SUZUKI
  • Publication number: 20180142908
    Abstract: 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: Application
    Filed: June 16, 2015
    Publication date: May 24, 2018
    Inventors: Yudai MORIKAWA, Shinji KOBAYASHI, Yutaka AOYAMA
  • Patent number: 9657996
    Abstract: 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: Grant
    Filed: June 21, 2013
    Date of Patent: May 23, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Okazawa, Yudai Morikawa, Hiroya Ikuta, Takashi Nakajima, Hiroki Toyoshima, Takashi Kato
  • Publication number: 20170114932
    Abstract: 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: Application
    Filed: September 25, 2014
    Publication date: April 27, 2017
    Inventors: Takashi NAKAJIMA, Nobuaki MIYAKE, Yudai MORIKAWA
  • Publication number: 20160131371
    Abstract: 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: Application
    Filed: June 4, 2014
    Publication date: May 12, 2016
    Inventors: Yutaka AOYAMA, Yudai MORIKAWA
  • Patent number: D757915
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: May 31, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yudai Morikawa, Tomoki Inagaki, Hiroki Okazawa
  • Patent number: D814002
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: March 27, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yudai Morikawa, Yutaka Aoyama
  • Patent number: D814003
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: March 27, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yudai Morikawa, Yutaka Aoyama
  • Patent number: D814004
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: March 27, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yudai Morikawa, Yutaka Aoyama
  • Patent number: D814005
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: March 27, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yudai Morikawa, Yutaka Aoyama