Patents by Inventor Akira Ishibashi

Akira Ishibashi 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: 10914499
    Abstract: An outdoor heat exchanger of an outdoor unit includes a main heat exchanger portion and an auxiliary heat exchanger portion. In the main heat exchanger portion, refrigerant path groups are formed. In the auxiliary heat exchanger portion, refrigerant paths are formed. The refrigerant path in the auxiliary heat exchanger portion, which is located closest to the main heat exchanger portion, is connected to the refrigerant path group in the main heat exchanger portion, which is disposed in a region where a wind velocity of the outdoor air passing through the main heat exchanger portion is relatively high. In addition, the refrigerant path is connected to the refrigerant path group. The refrigerant path is connected to the refrigerant path group. The refrigerant path is connected to the refrigerant path group.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: February 9, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shin Nakamura, Tsuyoshi Maeda, Akira Ishibashi
  • Publication number: 20210018232
    Abstract: An outdoor heat exchanger includes: a main heat exchange area; a sub heat exchange area; and a connecting pipe and a connecting pipe interconnecting the main heat exchange area and the sub heat exchange area. The main heat exchange area has a main heat exchange channel and a main heat exchange channel. The sub heat exchange area has a sub heat exchange channel, a sub heat exchange channel, and a sub heat exchange channel. The connecting pipe connects the sub heat exchange channel and the sub heat exchange channel to the main heat exchange channel while the sub heat exchange channels are joined together. The connecting pipe interconnects the sub heat exchange channel and the main heat exchange channel.
    Type: Application
    Filed: January 18, 2018
    Publication date: January 21, 2021
    Inventors: Ryuichi NAGATA, Tsuyoshi MAEDA, Shin NAKAMURA, Akira ISHIBASHI
  • Publication number: 20210003325
    Abstract: A refrigeration cycle apparatus includes a refrigerant circuit including a compressor, a condenser, a pressure reducing device, and an evaporator connected by a refrigerant pipe. A refrigerant including a refrigerant having flammability is used as refrigerant circulating in the refrigerant circuit. The evaporator and the pressure reducing device are accommodated in a unit. The evaporator is disposed in the unit in such a manner that a linear distance between a refrigerant inlet of the evaporator and a refrigerant outlet of the pressure reducing device is shorter than a linear distance between a refrigerant outlet of the evaporator and the refrigerant outlet of the pressure reducing device.
    Type: Application
    Filed: May 17, 2018
    Publication date: January 7, 2021
    Inventors: Tsuyoshi MAEDA, Akira ISHIBASHI, Daisuke ITO
  • Publication number: 20200333056
    Abstract: A refrigeration cycle apparatus includes a refrigerant circuit and a controller for controlling the refrigerant circuit. The refrigerant circuit includes a compressor, a condenser, a pressure-reducing device and an evaporator. Refrigerant circulating through the refrigerant circuit contains propane or propylene. The controller sets a degree of superheat of refrigerant at an entrance port of the compressor to be a value greater than or equal to 10 degrees.
    Type: Application
    Filed: March 9, 2018
    Publication date: October 22, 2020
    Inventors: Daisuke ITO, Shin NAKAMURA, Shun KATO, Akira ISHIBASHI
  • Publication number: 20200292186
    Abstract: Provided are a system of highly clean rooms capable of continuously maintaining high cleanliness of air of class 1 or above and supplying enough oxygen inside the room for several persons to live in and a wall adapted to the structure of such a system. The system of highly clean rooms 10 is provided with a living space 6 and a space 5 between the roof and the ceiling as subspaces of an enclosed space formed by a room 1a. One of the lateral walls of the room 1a is constituted of a wall 9 with an internal space 7, which is a hollow wall. The internal space 7 and the living space 6 are in contact via an inner wall 9a of the wall 9, and a gas exchange membrane 26 is stretched in the inner wall 9a.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 17, 2020
    Inventors: Akira ISHIBASHI, Fusao ISHIBASHI
  • Publication number: 20200256626
    Abstract: A heat exchanger includes: a plate-like fin having one end and an other end in a first direction; and a first heat transfer tube and a second heat transfer tube that each extends through the fin and that are adjacent to each other in a second direction. A portion to which the fin and the first heat transfer tube are connected and a clearance portion that separates between the fin and the first heat transfer tube are disposed between the fin and the first heat transfer tube. The clearance portion is disposed at one end side in the first direction relative to an imaginary center line that passes through a center of the first heat transfer tube in a long side direction and that extends along a short side direction.
    Type: Application
    Filed: October 16, 2017
    Publication date: August 13, 2020
    Inventors: Shin NAKAMURA, Tsuyoshi MAEDA, Akira ISHIBASHI, Tomoyuki HAYASHI
  • Patent number: 10712023
    Abstract: An outdoor unit for an air-conditioning apparatus is configured to suppress damage on hairpin portions at an end portion of an outdoor heat exchanger due to freezing. The outdoor unit includes: an air passage defined inside a casing; an outdoor heat exchanger, which is installed in the air passage, and includes a plurality of heat exchange portions; an outdoor unit fan configured to introduce air into the outdoor heat exchanger; and an air passage blocking object installed in the air passage, and configured to block air flow. The outdoor heat exchanger includes: a heat transfer tube configured to allow refrigerant to pass therein; and a fin connected to the heat transfer tube. The heat transfer tube includes a hairpin portion, which is bent and folded back and to which no fin is connected. The air passage blocking object is configured to cover the hairpin portion.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: July 14, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Kato, Tsubasa Tanda, Shin Nakamura, Akira Ishibashi
  • Publication number: 20200217590
    Abstract: In a heat exchanger, each of a plurality of heat exchange members includes: a main body portion including a heat transfer pipe; and extending portions provided to the main body. The extending portions extend from ends of the main body portion in a third direction. When a dimension of the main body portion in the third direction is represented by La, a dimension of the extending portions in the third direction is represented by Lf, a dimension of a wall thickness of each of the heat transfer pipes is represented by tp, and a thickness dimension of each of the extending portions is represented by Tf, relationships: Lf/La?1 and Tf?tp are satisfied.
    Type: Application
    Filed: August 3, 2017
    Publication date: July 9, 2020
    Inventors: Tsuyoshi MAEDA, Shinya HIGASHIIUE, Akira ISHIBASHI, Ryuichi NAGATA, Eiji HIHARA, Chaobin DANG, Jiyang LI
  • Publication number: 20200217588
    Abstract: Provided is a heat exchanger, including a plurality of heat exchange members arranged in a first direction so as to be spaced apart from each other. Each of the plurality of heat exchange members includes: a heat transfer pipe extending in a second direction intersecting with the first direction; and a heat transfer plate provided to the heat transfer pipe along the second direction. The heat transfer plate includes extending portions extending away from the heat transfer pipe in a third direction intersecting with each of the first direction and the second direction. The heat transfer plate is formed separately from the heat transfer pipe.
    Type: Application
    Filed: August 3, 2017
    Publication date: July 9, 2020
    Inventors: Yuta KOMIYA, Shinya HIGASHIIUE, Tsuyoshi MAEDA, Ryota AKAIWA, Shigeyoshi MATSUI, Akira ISHIBASHI, Eiji HIHARA, Chaobin DANG, Jiyang LI
  • Patent number: 10677483
    Abstract: Provided are a system of highly clean rooms capable of continuously maintaining high cleanliness of air of class 1 or above and supplying enough oxygen inside the room for several persons to live in and a wall adapted to the structure of such a system. The system of highly clean rooms 10 is provided with a living space 6 and a space 5 between the roof and the ceiling as subspaces of an enclosed space formed by a room 1a. One of the lateral walls of the room 1a is constituted of a wall 9 with an internal space 7, which is a hollow wall. The internal space 7 and the living space 6 are in contact via an inner wall 9a of the wall 9, and a gas exchange membrane 26 is stretched in the inner wall 9a.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: June 9, 2020
    Assignees: C'Stec Corporation, Hiei Kensetsu Corporation, Ishibashi Kenchiku Jimusho Corporation, Akira Ishibashi
    Inventors: Akira Ishibashi, Fusao Ishibashi
  • Publication number: 20200171427
    Abstract: A room 100 in a building has a living etc. space 101 of volume V that is an enclosed space. Ventilation of an air flow F is performed from the outside to the living etc. space 101. Entering/exiting of air as an air current between the inside of the living etc. space 101 and the outside is eliminated, and at least a part of the boundary between the living etc. space 101 and the outside is configured from a gas exchange membrane 310 having a diffusion constant D, a thickness L, and an area A for gas molecules of interest. When air inside the living etc. space 101 is sufficiently agitated and the concentration of gas molecules constituting the air is made spatially uniform, ?(t) is controlled so as to vary according to ? ? ( t ) = ? o - BL AD ? ( 1 - exp ? ( - [ AD ? / ? L ] ? t ? / ? V ) ) ( 9 ) B(m3/s) is the gas consumption amount inside the living etc. space 101, ?1(t) is the gas concentration inside the living etc.
    Type: Application
    Filed: March 23, 2018
    Publication date: June 4, 2020
    Inventors: Akira ISHIBASHI, Tsukio ETO, Nobutoshi NOGUCHI, Junji MATSUDA
  • Patent number: 10670344
    Abstract: A heat exchanger includes: a heat exchange unit group made up of a plurality of heat exchange units arranged in a row direction, the heat exchange units including a plurality of heat transfer tubes configured to allow refrigerant to pass therethrough, the heat transfer tubes being arrayed in a level direction, the level direction being perpendicular to the direction of air flow, and a plurality of fins stacked to allow air to pass therethrough in the air flow direction; and headers, disposed on both ends of the heat exchange unit group, the headers being connected with ends of the plurality of heat transfer tubes, the heat exchange unit group including one or more bend sections bent in the row direction, the headers including one header provided on one end of the heat exchange unit group in common for the plurality of rows of the heat exchange units, and a plurality of separate headers provided separately for the heat exchange units on the other end of the heat exchange unit group, the plurality of separate h
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: June 2, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Daisuke Ito, Akira Ishibashi, Takashi Okazaki, Shinya Higashiiue, Takuya Matsuda, Atsushi Mochizuki
  • Publication number: 20200166253
    Abstract: Provided is a heat exchanger, including: a refrigerant distributor including: a gas-liquid separating portion having a function of separating a gas-liquid refrigerant mixture into a liquid refrigerant and a gas refrigerant; and a distributing portion provided to the gas-liquid separating portion. A plurality of heat transfer pipes connected to the distributing portion. The plurality of heat transfer pipes are arranged side by side in a first direction, and extend along a second direction intersecting with the first direction. When the refrigerant distributor is viewed along a direction orthogonal to each of the first direction and the second direction, a first space forming portion overlaps a region of the plurality of heat transfer pipes. When the refrigerant distributor and the heat transfer pipes are viewed along the first direction, a clearance is present between the gas-liquid separating portion and the heat transfer pipes.
    Type: Application
    Filed: August 3, 2017
    Publication date: May 28, 2020
    Inventors: Shinya HIGASHIIUE, Tsuyoshi MAEDA, Akira ISHIBASHI, Ryuichi NAGATA, Eiji HIHARA, Chaobin DANG, Jiyang LI
  • Publication number: 20200149828
    Abstract: Provided is a refrigerant distributor including: a first space forming portion having a first refrigerant port and a second refrigerant port; and a second space forming portion, which extends laterally from a lower part of the first space forming portion, and has a plurality of heat transfer pipe connecting portions. A gas-liquid refrigerant mixture flows into the first space forming portion through the first refrigerant port. Heat transfer pipes are connected at positions of the plurality of heat transfer pipe connecting portions in the second space forming portion.
    Type: Application
    Filed: August 3, 2017
    Publication date: May 14, 2020
    Inventors: Shinya HIGASHIIUE, Tsuyoshi MAEDA, Akira ISHIBASHI, Ryuichi NAGATA, Eiji HIHARA, Chaobin DANG, Jiyang LI
  • Publication number: 20200149818
    Abstract: In a heat exchanger, each of a plurality of heat exchange members includes: a flat pipe; and a heat transfer plate integrated with the flat pipe along a longitudinal direction of the flat pipe. A width direction of each of the flat pipes intersects with a direction in which the plurality of heat exchange members are arranged side by side. Each of the heat transfer plates includes an extending portion extending outward in the width direction of each of the flat pipes from at least one of one end of a corresponding one of the flat pipes in the width direction and another end of the corresponding one of the flat pipes in the width direction. Each of the flat pipes has one or more flat pipe bent portions, each forming a groove extending along the longitudinal direction of the flat pipes.
    Type: Application
    Filed: August 3, 2017
    Publication date: May 14, 2020
    Inventors: Akira ISHIBASHI, Tsuyoshi MAEDA, Shinya HIGASHIIUE, Daisuke ITO, Shin NAKAMURA, Ryota AKAIWA, Akira YATSUYANAGI, Ryuichi NAGATA, Eiji HIHARA, Chaobin DANG, Jiyang LI
  • Patent number: 10648742
    Abstract: A finless heat exchanger includes a pair of headers each including a pipe-shaped portion extending in a first direction, and branching portions formed on the pipe-shaped portion, and flat pipes each having a flat sectional shape elongated in one direction, the flat pipes being arrayed in the first direction and connecting the branching portions of the headers. Flat surfaces of adjacent two flat pipes face each other and the adjacent two flat pipes each have a side surface facing a second direction orthogonal to the first direction. The flat pipes connect the branching portions, the side surface of each of the flat pipes has a wave shape, and adjacent flat pipes are prevented from contacting each other. Both the side surfaces are opened so that air flows in from a side corresponding to one side surface in the second direction and flows out from a side in the second direction.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: May 12, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Susumu Yoshimura, Takashi Matsumoto, Shigeyoshi Matsui, Shoji Yamada, Akira Ishibashi
  • Patent number: 10627175
    Abstract: A heat exchanger includes a plate fin, a first flat tube intersecting with the plate fin, and a second flat tube opposed to a flat tube lower surface of the first flat tube, the second flat tube being spaced from the first flat tube and arranged so as to intersect with the plate fin. A flat tube windward lateral surface of the first and second flat tubes is located on an inner side of a peripheral edge of the plate fin, which includes an elevated portion formed between the first and second flat tubes and is located between a first imaginary plane, connecting the flat tube windward lateral surface of the first and second flat tubes, and a second imaginary plane, connecting a center of the flat tube lower surface of the first flat tube and a center of the flat tube upper surface of the second flat tube.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: April 21, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shin Nakamura, Akira Ishibashi, Sangmu Lee, Satoshi Ueyama, Tsubasa Tanda
  • Publication number: 20200083330
    Abstract: A method for producing a SiC epitaxial wafer according to the present embodiment includes: an epitaxial growth step of growing the epitaxial layer on the SiC single crystal substrate by feeding an Si-based raw material gas, a C-based raw material gas, and a gas including a Cl element to a surface of a SiC single crystal substrate, in which the epitaxial growth step is performed under growth conditions that a film deposition pressure is 30 torr or less, a Cl/Si ratio is in a range of 8 to 12, a C/Si ratio is in a range of 0.8 to 1.2, and a growth rate is 50 ?m/h or more from an initial growth stage.
    Type: Application
    Filed: April 19, 2018
    Publication date: March 12, 2020
    Applicants: SHOWA DENKO K.K., Central Research Institute of Electric Power Industry, DENSO CORPORATION
    Inventors: Keisuke FUKADA, Naoto ISHIBASHI, Akira BANDO, Masahiko ITO, Isaho KAMATA, Hidekazu TSUCHIDA, Kazukuni HARA, Masami NAITO, Hideyuki UEHIGASHI, Hiroaki FUJIBAYASHI, Hirofumi AOKI, Toshikazu SUGIURA, Katsumi SUZUKI
  • Patent number: 10571205
    Abstract: A stacking-type header according to the present invention includes: a first plate-shaped unit; and a second plate-shaped unit stacked on the first plate-shaped unit, and having a distribution flow passage, in which the distribution flow passage includes a branching flow passage including: a first flow passage; and a second flow passage, and in which the branching flow passage is smaller in difference in flow resistance between the first flow passage and the second flow passage than a branching flow passage in a state in which a flow-passage resistance in the first flow passage and a flow-passage resistance in the second flow passage are equal to each other, and in a state in which the first flow passage and the second flow passage are point symmetric with each other about the opening port.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: February 25, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinya Higashiiue, Takashi Okazaki, Akira Ishibashi, Daisuke Ito, Takuya Matsuda, Shigeyoshi Matsui, Atsushi Mochizuki
  • Patent number: 10563924
    Abstract: Plate-shaped fins of a heat exchanger each include, at circumferential portions thereof defining a notch in which a heat transfer tube having a flattened shape is disposed, fin collars formed by being raised from the circumferential portions. Each of the fin collars includes, in a position that faces a long axis side surface of the heat transfer tube, at least one reflare section bent in a direction opposite to the side surface. At least one of the reflare sections defining fin pitches between the adjoining plate-shaped fins is formed so that a reflare tip portion, which is a tip portion of the reflare section, is drawn apart from a contact side surface of the plate-shaped fin with which the reflare section comes into contact.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: February 18, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shin Nakamura, Akira Ishibashi, Shinya Higashiiue, Daisuke Ito, Shigeyoshi Matsui, Yuki Ugajin, Takashi Okazaki, Atsushi Mochizuki