Patents by Inventor Akiyoshi Yamamoto

Akiyoshi Yamamoto 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: 11384953
    Abstract: An air conditioning system includes: an air conditioner that generates conditioned air by heat exchange with a refrigerant and supplies the conditioned air to an air conditioning target space; a refrigerant sensor that detects refrigerant leakage; a ventilator that ventilates the air conditioning target space; and a controller. The ventilator includes: a total heat exchanger; a first air supply path and a first air exhaust path that connect the air conditioning target space and an outside of the air conditioning target space via the total heat exchanger; a second air supply path that connect the air conditioning target space and the outside of the air conditioning target space without passing through the total heat exchanger; an air supply fan that supplies air from the outside of the air conditioning target space into the air conditioning target space via the first air supply path and the second air supply path.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: July 12, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kousuke Hirai, Tooru Fujimoto, Akiyoshi Yamamoto, Gakuto Sakai, Yoshitaka Matsugi
  • Publication number: 20220214062
    Abstract: An air conditioning and ventilating system including: an air conditioning device including a heat exchanger configured to generate conditioned air by heat exchange with a refrigerant; a ventilation device communicatively connected to the air conditioning device and including a supply air fan and/or an exhaust fan; an airflow volume detection unit configured to detect an airflow volume equivalent value of the ventilation device; and a control unit. On determination that the airflow volume equivalent value acquired from the airflow volume detection unit is equal to or less than a first predetermined value, the control unit sets an operation of the air conditioning device to a stop state.
    Type: Application
    Filed: March 22, 2022
    Publication date: July 7, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kousuke HIRAI, Akiyoshi YAMAMOTO, Gakuto SAKAI, Tooru FUJIMOTO, Yoshitaka MATSUGI
  • Publication number: 20220186960
    Abstract: An air conditioning and ventilating system S including: an air conditioning device A including a heat exchanger 22 configured to generate conditioned air by heat exchange with a refrigerant, and configured to send the conditioned air to an air conditioned space R; a ventilation device 30 configured to ventilate the air conditioned space R; a refrigerant sensor 24 configured to detect concentration of the refrigerant in the air conditioned space R; and a control unit 40 configured to control operations of the air conditioning device A and the ventilation device 30. On determination that the refrigerant concentration acquired from the refrigerant sensor 24 exceeds a first predetermined value, the control unit 40 sets an operation of a compressor 13 of the air conditioning device A to a stop state and sets the ventilation device 30 to an operating state.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kousuke HIRAI, Akiyoshi YAMAMOTO, Gakuto SAKAI, Yoshitaka MATSUGI, Tooru FUJIMOTO
  • Publication number: 20220146138
    Abstract: An air conditioning system includes: an air conditioner that generates conditioned air by heat exchange with a refrigerant and supplies the conditioned air to an air conditioning target space; a refrigerant sensor that detects refrigerant leakage; a ventilator that ventilates the air conditioning target space; and a controller. The ventilator includes: a total heat exchanger; a first air supply path and a first air exhaust path that connect the air conditioning target space and an outside of the air conditioning target space via the total heat exchanger; a second air supply path that connect the air conditioning target space and the outside of the air conditioning target space without passing through the total heat exchanger; an air supply fan that supplies air from the outside of the air conditioning target space into the air conditioning target space via the first air supply path and the second air supply path.
    Type: Application
    Filed: April 24, 2020
    Publication date: May 12, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kousuke Hirai, Tooru Fujimoto, Akiyoshi Yamamoto, Gakuto Sakai, Yoshitaka Matsugi
  • Patent number: 10955160
    Abstract: An air conditioner includes: a heat source unit including a compressor and a heat source-side heat exchanger; and a plurality of utilization units each including a decompressing device and a utilization-side heat exchanger. The utilization units are connected in parallel to the heat source unit to form a refrigerant circuit. The air conditioner performs a cooling operation using the heat source-side heat exchanger as a condenser and the utilization-side heat exchanger as an evaporator. The air conditioner further includes: a detection sensor that detects a state of air related to a required capacity of each of the utilization units; and a control apparatus that acquires the required capacity of each of the utilization units based on a detection result of the detection sensor.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 23, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Katsutoshi Shimizu, Akiyoshi Yamamoto, Kenshi Tsuji
  • Patent number: 10914482
    Abstract: A fan drive circuit 1 for a heat pump device is provided. The heat pump device blows air heat exchanged by a heat exchanger using a mildly-flammable or flammable refrigerant having a specific gravity greater than that of air from a blowout port using a fan. The fan drive circuit 1 is equipped with a forced operation circuit configured to operate the fan in the event that it is undetectable that a protection device for preventing a leaked refrigerant from the heat pump device from reaching a combustible density is connected to the heat pump device.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 9, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Akiyoshi Yamamoto, Kazushige Maeda
  • Publication number: 20200378642
    Abstract: An air conditioner includes: a heat source unit including a compressor and a heat source-side heat exchanger; and a plurality of utilization units each including a decompressing device and a utilization-side heat exchanger. The utilization units are connected in parallel to the heat source unit to form a refrigerant circuit. The air conditioner performs a cooling operation using the heat source-side heat exchanger as a condenser and the utilization-side heat exchanger as an evaporator. The air conditioner further includes: a detection sensor that detects a state of air related to a required capacity of each of the utilization units; and a control apparatus that acquires the required capacity of each of the utilization units based on a detection result of the detection sensor.
    Type: Application
    Filed: January 25, 2018
    Publication date: December 3, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Katsutoshi Shimizu, Akiyoshi Yamamoto, Kenshi Tsuji
  • Publication number: 20200363076
    Abstract: An air conditioning unit that blows out temperature-controlled air to a front side indoors, includes: a fan; a rectangular casing in which the fan is disposed; and an air passage forming member that is disposed on an air-flow downstream side of the fan and that forms an air passage having a circular cross-sectional shape. The rectangular casing has a first side, a second side, a third side, and a fourth side when viewed from a front direction of the casing. The first side is parallel to the second side, and the third side is parallel to the fourth side. A smaller one of a first distance between the first side and the second side and a second distance between the third side and the fourth side is no greater than 2.5 times a diameter of a cross section of the air passage.
    Type: Application
    Filed: December 21, 2018
    Publication date: November 19, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Akiyoshi Yamamoto, Noriyuki Okuda, Motohiko Fukuoka, Masashi Kamada, Hiroshi Fuchikami, Kenshi Tsuji
  • Publication number: 20190086111
    Abstract: A fan drive circuit 1 for a heat pump device is provided. The heat pump device blows air heat exchanged by a heat exchanger using a mildly-flammable or flammable refrigerant having a specific gravity greater than that of air from a blowout port using a fan. The fan drive circuit 1 is equipped with a forced operation circuit configured to operate the fan in the event that it is undetectable that a protection device for preventing a leaked refrigerant from the heat pump device from reaching a combustible density is connected to the heat pump device.
    Type: Application
    Filed: December 22, 2016
    Publication date: March 21, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Akiyoshi YAMAMOTO, Kazushige MAEDA
  • Patent number: 10016801
    Abstract: A manufacturing method of a sub-muffler outer cylinder is provided. The manufacturing method includes pushing one push roll toward two receive rolls, and then bending a plate-shape workpiece to form the sub-muffler outer cylinder made of a cylindrical-shaped body. A push-in amount in a part of the workpiece corresponding to a corner part of the cylindrical-shaped body is made larger than a push-in amount in a part of the workpiece corresponding to a side part of the cylindrical-shaped body to form the cylindrical-shaped body having a polygonal cross-sectional shape.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: July 10, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideki Homma, Akiyoshi Yamamoto
  • Patent number: 9719404
    Abstract: A manufacturing method for a muffler includes: a trimming step, of cutting out a dogleg shaped muffler body member; a bending processing step of processing the muffler body member into a tube by advancing the muffler body member between an upper roller and a lower roller of a bending machine while adjusting an advancing direction with a guide and by changing a relative position of the upper roller and the lower roller; a first joining step of joining two ends of the tubularly-processed muffler body member in a long side direction; an insertion step of inserting an inner structural member into the inside of the tubularly-processed muffler body member; a second joining step of joining caps to opening portions of the tubularly-processed muffler body member; and a third joining step of joining an air intake joint and an exhaust pipe to the sealed muffler body member.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: August 1, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akiyoshi Yamamoto, Kenji Shikata, Ken Miwa, Koichi Hiramatsu, Isao Nojiri, Tomoyuki Fujita, Kazuki Sugi
  • Patent number: 9470124
    Abstract: A manufacturing method of a sub-muffler includes a rectangular tubular body shaping step, a preliminary shaping step, and a diameter reduction shaping step. In the rectangular tubular body shaping step, a plate material is bent and a rectangular tubular body having a rectangular shape in cross section is thereby formed. In the preliminary shaping step, ends of the rectangular tubular body are preliminarily formed and the end parts of the tubular body are thereby formed so that its cross-sectional shape becomes a circular shape. In the diameter reduction shaping step, the diameters of the ends of the rectangular tubular body are reduced.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: October 18, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akiyoshi Yamamoto, Hideki Homma
  • Publication number: 20160208672
    Abstract: A muffler is a wound muffler formed by inserting a silencer into an inside of a main body formed in a cylindrical shape, the silencer includes an expandable part expandable in an axial direction in an outlet pipe for exhaust gas, and after the silencer is inserted into the inside of the main body with the expandable part of the silencer contracted, the expandable part of the silencer is so expanded as to extend a downstream end of the outlet pipe to an outside of the main body.
    Type: Application
    Filed: July 28, 2014
    Publication date: July 21, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akiyoshi YAMAMOTO, Ken MIWA
  • Patent number: 9301708
    Abstract: A magnetic resonance imaging (MRI) system includes at least one controller configured to first acquire at least MRI locator image data for different portions of patient anatomy at each of different imaging stations for a defined multi-station locator sequence. An operator may interface with a respectively corresponding displayed locator image for each imaging station to set diagnostic scan sequence parameters for subsequent diagnostic MRI scans of corresponding portions of patient anatomy. Diagnostic MRI scan data is automatically acquired at each of the imaging stations in a multi-station diagnostic scan sequence that, if desired, can be seamlessly continued without operator interruption once begun.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: April 5, 2016
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Mitsue Miyazaki, Katsumi Nakamura, Akiyoshi Yamamoto
  • Publication number: 20160053664
    Abstract: A manufacturing method for a muffler includes: a trimming step, of cutting out a dogleg shaped muffler body member; a bending processing step of processing the muffler body member into a tube by advancing the muffler body member between an upper roller and a lower roller of a bending machine while adjusting an advancing direction with a guide and by changing a relative position of the upper roller and the lower roller; a first joining step of joining two ends of the tubularly-processed muffler body member in a long side direction; an insertion step of inserting an inner structural member into the inside of the tubularly-processed muffler body member; a second joining step of joining caps to opening portions of the tubularly-processed muffler body member; and a third joining step of joining an air intake joint and an exhaust pipe to the sealed muffler body member.
    Type: Application
    Filed: April 9, 2014
    Publication date: February 25, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akiyoshi YAMAMOTO, Kenji SHIKATA, Ken MIWA, Koichi HIRAMATSU, Isao NOJIRI, Tomoyuki FUJITA, Kazuki SUGI
  • Publication number: 20150343509
    Abstract: Provided is a manufacturing method of a sub-muffler outer cylinder (20, 220), the manufacturing method comprising pushing one push roll (10, 210) toward two receive rolls (11, 12, 211, 212) and then bending a plate-shape workpiece (W0, W20) to form the sub-muffler outer cylinder (20, 220) made of a cylindrical-shaped body. A push-in amount in a part (20f˜20g, 220f˜220g) of the workpiece corresponding to a corner part of the cylindrical-shaped body is made larger than a push-in amount in a part (20a˜20e, 220a˜220e) of the workpiece corresponding to a side part of the cylindrical-shaped body to form the cylindrical-shaped body (20, 220) having a polygonal cross-sectional shape.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 3, 2015
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hideki Homma, Akiyoshi Yamamoto
  • Publication number: 20150322831
    Abstract: A manufacturing method of a sub-muffler -parenthesis-1, 201) includes a rectangular tubular body shaping step -parenthesis-S3), a preliminary shaping step -parenthesis-S5, S26), and a diameter reduction shaping step -parenthesis-S7, S27). In the rectangular tubular body shaping step -parenthesis-S3), a plate material -parenthesis-70) is bent and a rectangular tubular body -parenthesis-72, 720) having a rectangular shape in cross section is thereby formed. In the preliminary shaping step -parenthesis-S5, S26), ends -parenthesis-724, 725) of the rectangular tubular body -parenthesis-72, 720) are preliminarily formed and the end parts of the tubular body -parenthesis-72, 720) are thereby formed so that its cross-sectional shape becomes a circular shape. In the diameter reduction shaping step -parenthesis-S7, S27), the diameters of the ends -parenthesis-724, 725) of the rectangular tubular body -parenthesis-72, 720) are reduced.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 12, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akiyoshi YAMAMOTO, Hideki HOMMA
  • Publication number: 20150321240
    Abstract: A swaging device according to an aspect of the present invention swages an end of a tubular body and a circumferential edge of an end plate for closing an opening of the tubular body by utilizing a processing roller, in which the processing roller is connected to a robot, the robot being configured to control a position of the processing roller, and swaging is performed by sandwiching the end of the tubular body and the circumferential edge of the end plate by an inner roller and an outer roller, the inner roller being disposed inside the tubular body, the outer roller being disposed outside the tubular body so that the outer roller is opposed to the inner roller, and the outer roller being movable toward the inner roller.
    Type: Application
    Filed: April 28, 2015
    Publication date: November 12, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Akiyoshi YAMAMOTO
  • Patent number: 9157979
    Abstract: A magnetic resonance imaging (MRI) system includes at least one controller configured to first acquire at least MRI locator image data for different portions of patient anatomy at each of different imaging stations for a defined multi-station locator sequence. An operator may interface with a respectively corresponding displayed locator image for each imaging station to set diagnostic scan sequence parameters for subsequent diagnostic MRI scans of corresponding portions of patient anatomy. Diagnostic MRI scan data is automatically acquired at each of the imaging stations in a multi-station diagnostic scan sequence that, if desired, can be seamlessly continued without operator interruption once begun.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: October 13, 2015
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Mitsue Miyazaki, Katsumi Nakamura, Akiyoshi Yamamoto
  • Patent number: 8650986
    Abstract: It is provided a vehicle operation pedal in which a pedal sheet is integrally fixed to a sheet fixed portion of a pedal arm in such a posture that a depressed face of the pedal sheet, which is depressed by a driver, faces a driver's seat, comprising a fitting hole through which the sheet fixed portion of the pedal arm extends formed in the pedal sheet; and the sheet fixed portion being fitted into the fitting hole from a rear face that is on the side opposite to the depressed face, and a peripheral portion around the fitting hole being integrally fixed to the sheet fixed portion by welding performed from the depressed face side.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: February 18, 2014
    Assignee: Toyoda Iron Works Co., Ltd.
    Inventor: Akiyoshi Yamamoto