Patents by Inventor Noriyuki Chikagawa

Noriyuki Chikagawa 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).

  • Publication number: 20240066957
    Abstract: This light illumination unit comprises: a heat sink that has a plate-shaped heat sink body and fins protruding from a first main surface of the heat sink body; an electronic substrate that is laminated on a second main surface of the heat sink body on the reverse side thereof from the first main surface; and a light illumination element that is mounted on a first surface of the electronic substrate on the side thereof where the heat sink is provided. As a result of said configuration, it is possible to save space as well as power.
    Type: Application
    Filed: January 12, 2022
    Publication date: February 29, 2024
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Noriyuki CHIKAGAWA, Takahide YAMAMOTO, Isami YONEDA
  • Publication number: 20220332167
    Abstract: This air-conditioning device (10) for a vehicle comprises a flow path width adjustment portion (14) that is provided at an inlet portion (11BA) of a ventilation flow path (11B) so as to be connected to the inner surface (31a) of a first side wall (31), the flow path width adjustment portion (14) having an upper end connected to a fan mounting portion (35), extending downward, and being located between a third wall (33) and a nose portion (37) in the (Y) direction. The nose portion (37) has an inclined portion (37A) that is inclined with respect to the third wall (33) such that the width of the inlet portion (11BA) increases in the (Z) direction from the inlet to the outlet of the inlet portion (11BA) of the ventilation flow path (11B). In the (Z) direction, the flow path width adjustment portion (14) is formed so as to narrow the width of the inlet portion (11BA) of the ventilation flow path (11B) in the (Y) direction.
    Type: Application
    Filed: October 11, 2019
    Publication date: October 20, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventor: Noriyuki CHIKAGAWA
  • Publication number: 20220227201
    Abstract: The present invention comprises: a unit case; a damper which switches between the open state and the closed state of a flow path; a plurality of damper levers which have pins and rotatably support the damper with respect to the unit case; and a main lever which has guide grooves into which the pins are fitted, and rotates the damper levers by guiding pins through rotation around an axis, wherein the main lever has a main lever body having the guide groove formed therein, and a shaft part which rotatably supports the main lever body and is provided with a hook portion engaged with the unit case, and the shaft part has a higher toughness than the main lever body and is made of a material different from that of the unit case.
    Type: Application
    Filed: June 16, 2020
    Publication date: July 21, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventor: Noriyuki CHIKAGAWA
  • Publication number: 20220144043
    Abstract: The objective of the present invention is to decrease air temperature reduction along an indoor-side surface of a vehicle opening part caused by heat transfer from outside air. A heating device for a vehicle is provided with a heat generating part (2) which is installed on a vehicle component provided along an edge of a vehicle opening part, and which increases, via heat generation, the temperature of low temperature air along an indoor-side surface of the vehicle opening part caused by heat transfer from outside air. The heat generating part (2) may be disposed along an opening part installed with a vehicle window (52), and the heat generating part (2) may include an electric heater that uses electric power as a heat source.
    Type: Application
    Filed: April 9, 2019
    Publication date: May 12, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Noriyuki CHIKAGAWA, Hideya NISHIJIMA
  • Publication number: 20200369114
    Abstract: An object is to provide an air conditioning unit and a vehicular air conditioning device that can efficiently distribute conditioned air while preventing an increase in the dimensions of a damper. The air conditioning unit includes a main duct (D1), a subduct (D4) branching from the main duct (D1) and guiding air to a foot outlet port (24), and a second switching damper (30) disposed in the subduct (D4) facing the main duct (D1). The second switching damper (30) includes a rotating shaft (31) and a damper body (32) including a guiding shroud (33) extending in the circumferential direction around the rotating shaft (31). An end flange (34A) at one circumferential end of the damper body (32) protrudes into the main duct (D1) as a result of rotation of the second switching damper (30) around the rotating shaft (31). A radial length (R1) of an end flange (34A) is greater than a radial length (R2) of an end flange (34B) at the other circumferential end of the guiding shroud (33).
    Type: Application
    Filed: June 26, 2017
    Publication date: November 26, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventor: Noriyuki CHIKAGAWA
  • Patent number: 10710426
    Abstract: A vehicle air conditioner which introduces a sufficient amount of primary air without providing a guide, and possible to install an aspirator in a large area in a downstream region of an air-mixing damper while avoiding interference with a mode-switching damper or the like and includes a case main unit of an air conditioning unit, an aspirator that introduces air circulating in an air channel at an interior of the case main unit as primary air and that sucks in air in a vehicle cabin as secondary air via an installation portion of an indoor temperature sensor, the case main unit is provided with a boss portion that communicates with the air channel at the interior of the case main unit and protrudes diagonally outward so as to face an air-circulation direction, and a primary-air introducing unit of the aspirator is installed by being diagonally inserted into the boss portion.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: July 14, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventor: Noriyuki Chikagawa
  • Patent number: 10589592
    Abstract: An air conditioning device for vehicles including an evaporator for cooling air; a heater core for heating air; and a unit case having formed therein a cooling space for accommodating the evaporator, a heating space for accommodating the heater core, and an air mixing space connected to the cooling space and the heating space. A pair of foot flow passages is in communication with the unit case, the pair of foot flow passages extending from the air mixing space and being arranged at a distance from each other in the width direction of the vehicle so as to sandwich a rear face flow passage in the width direction. The rear face flow passage and at least a part of each of the foot flow passages overlap each other when viewed in the width direction.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: March 17, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventor: Noriyuki Chikagawa
  • Publication number: 20200070624
    Abstract: A rear-side flow passage section (17) includes a rear-side duct (19), a first communication path (21), a second communication path (22), a first damper (23), and a second damper (24). The rear-side duct (19) extends from a downstream side of the heater core (15) to a rear side of a vehicle cabin. The first communication path (21) communicates a downstream side of the evaporator (14) and a front-side flow passage section with each other. The second communication path (22) communicates a downstream side of the evaporator (14) and a downstream side of the heater core (15) with each other. The first damper (23) is configured to allow an airflow to be selectively introduced into the first communication path (21) or the second communication path (22). The second damper (24) is configured to change a communication state between a downstream opening (15b) of the heater core (15), the rear-side duct (19), and the second communication path (22).
    Type: Application
    Filed: May 10, 2018
    Publication date: March 5, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventor: Noriyuki CHIKAGAWA
  • Publication number: 20200016957
    Abstract: An object of the present invention is to provide a vehicular air conditioning apparatus capable of varying the temperature of air that has passed through a heater core in the up-down direction of the heater core while achieving downsizing. The vehicular air conditioning apparatus includes an electric heater (43) that is provided in a flow channel defined by a housing on the downstream side of an evaporator, that includes heater circuits (48, 49), and that configures a heater core (17) that heats air cooled by the evaporator, and a control device (25) that separately controls the heater circuits (48, 49). The heater circuits (48, 49) are arranged in the up-down direction of the heater core (17).
    Type: Application
    Filed: April 12, 2018
    Publication date: January 16, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventor: Noriyuki CHIKAGAWA
  • Patent number: 10525795
    Abstract: Provided is a vehicle air-conditioning device in which a lever (7) for turning a damper is rotatably fitted and supported on a unit casing (2), wherein one of a support part (13) on the unit casing (2) side and a fitting part (8) on the lever side is provided with an elastically deformable fitting claw (27), while the other of the support part (13) and the fitting part (8) is provided with a fitting hole (24), into which the fitting claw (27) is fitted and engaged, and a bearing boss part (23) and a fitting shaft part (25), which are rotatably fitted together with a bearing clearance between them, are provided on the outer periphery of the fitting claw (27) and the fitting hole (24).
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: January 7, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventor: Noriyuki Chikagawa
  • Patent number: 10293656
    Abstract: Provided is a vehicle air conditioning device, including: a unit case including an air flow channel formed therein, the air flow channel being branched into a bypass flow channel and a heating flow channel; a heater core installed in the heating flow channel; and upper-part shoulder supporting portions for the heater core, each of the upper-part shoulder supporting portions only supports one of upper-part right and left shoulder portions of the heater core installed on a bottom surface side of the heating flow channel, each of the upper-part shoulder supporting portions is provided on one of right and left side surfaces of the unit case. The vehicle air conditioning device blowing off, into a chamber, an air flow made after joining together an air flow that has passed through the heating flow channel and an air flow that has passed through the bypass flow channel.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: May 21, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Noriyuki Chikagawa
  • Publication number: 20180370323
    Abstract: Provided is an air conditioning device for vehicles, the air conditioning device comprising: an evaporator (3) for cooling air; a heater core (4) for heating air; and a unit case (5) having formed therein a cooling space (6) for accommodating the evaporator (3), the unit case (5) also having formed therein a heating space (7) for accommodating the heater core (4), the unit case (5) further having formed therein an air mixing space (8) connected to the cooling space (6) and the heating space (7). A pair of foot flow passages (18) is in communication with the unit case (5), the pair of foot flow passages (18) extending from the air mixing space (8) and being arranged at a distance from each other in the width direction of the vehicle so as to sandwich a rear face flow passage (23) in the width direction. The rear face flow passage (23) and at least a part of each of the foot flow passages (18) overlap each other when viewed in the width direction.
    Type: Application
    Filed: March 1, 2017
    Publication date: December 27, 2018
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventor: Noriyuki CHIKAGAWA
  • Patent number: 9278604
    Abstract: Provided is a vehicle air conditioning device including an air conditioning unit in which: a unit case (10) of the air conditioning unit is formed of a plurality of lower and upper divided cases (23, 24, 25); and the divided cases (23, 24, 25) are coupled integrally to each other through a mating portion (34) provided to division end surfaces (30A, 30B, 32). The vehicle air conditioning device also includes a space (35) having a given height in the top-bottom direction and a given width is formed between respective case inner division end surfaces (32, 30B) of the divided cases (24, 25) on one side and the divided case (23) on the other side, the divided cases (23, 24, 25) constituting the mating portion (34).
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: March 8, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Noriyuki Chikagawa, Soichiro Fujita
  • Publication number: 20160023533
    Abstract: An object is to provide a vehicle air conditioner with which it is possible to introduce a sufficient amount of primary air without providing a guide, and with which it is additionally possible to install an aspirator in a large area in a downstream region of an air-mixing damper while avoiding interference with a mode-switching damper or the like.
    Type: Application
    Filed: December 25, 2013
    Publication date: January 28, 2016
    Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.
    Inventor: Noriyuki CHIKAGAWA
  • Patent number: 9085217
    Abstract: An aspirator is provided that includes a nozzle that aspirates secondary air; a main body that forms a scroll-shaped airflow path on the outer circumference of the nozzle; a primary-air inflow path that tangentially communicates with the airflow path; and a diffuser that is connected to an open end of the main body and has a throat portion at which a tip portion of the nozzle is disposed. An inner wall of the primary-air inflow path, which communicates with the scroll-shaped airflow path, is offset outward from the center of the nozzle, and primary air introduced from the primary-air inflow path flows into the scroll-shaped airflow path from one direction.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: July 21, 2015
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Noriyuki Chikagawa, Asuka Sakaguchi
  • Publication number: 20150044959
    Abstract: Provided is a vehicle air-conditioning device in which the unit casing is used commonly for an air conditioner designed for manual operation and an air conditioner designed for automatic control so that the variety of the parts and the mold cost can be reduced for a higher production efficiency and a cost reduction. In the vehicle air-conditioning device in which a damper can be turned by manual operation through a lever which is rotatably fitted and supported on a side surface of a unit casing or through an actuator which is directly coupled with a rotational shaft of the damper, a portion of a wall of the unit casing on which the lever is supported is formed as a double wall, and an outer wall of the double wall is provided with a support part on which a fitting part (8) of the lever is rotatably fitted and supported.
    Type: Application
    Filed: March 4, 2013
    Publication date: February 12, 2015
    Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.
    Inventor: Noriyuki Chikagawa
  • Publication number: 20150031279
    Abstract: Provided is a vehicle air-conditioning device in which a lever (7) for turning a damper is rotatably fitted and supported on a unit casing (2), wherein one of a support part (13) on the unit casing (2) side and a fitting part (8) on the lever side is provided with an elastically deformable fitting claw (27), while the other of the support part (13) and the fitting part (8) is provided with a fitting hole (24), into which the fitting claw (27) is fitted and engaged, and a bearing boss part (23) and a fitting shaft part (25), which are rotatably fitted together with a bearing clearance between them, are provided on the outer periphery of the fitting claw (27) and the fitting hole (24).
    Type: Application
    Filed: February 25, 2013
    Publication date: January 29, 2015
    Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEM CO., LTD.
    Inventor: Noriyuki Chikagawa
  • Patent number: 8936069
    Abstract: Provided is a vehicle heating ventilation and air conditioning unit capable of improving the performance of a side demister in a foot mode where a DEF damper is set to a small degree of opening, and capable of securing window clearness of side window glass.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: January 20, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Noriyuki Chikagawa, Tomoki Izawa
  • Patent number: 8540014
    Abstract: In a vehicle air conditioner (1) employing an air-mix method, airflow which passed through a bypass channel (14) and airflow which passed through a heated air channel (13) are mixed in an air-mix area (15) located downstream of an air-mix damper (6) and the airflow is guided to a foot outlet (19) through a foot channel (18) provided on the back side of a partition wall (2A) constituting the heated air channel (13). The vehicle air conditioner includes a mixing enhancement portion (50) that makes airflow flowing along the partition wall (2A) flow toward the air-mix area (15) and an introduction portion (60) that is continuous with the mixing enhancement portion (50) and smoothly guides the airflow after air mixing to the foot channel (18) are provided at an end (30) of the partition wall (2A) constituting an outlet of the heated air channel (13).
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: September 24, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Noriyuki Chikagawa, Shiro Matsubara, Yasunari Tanaka
  • Publication number: 20120280051
    Abstract: Provided is a vehicle air conditioning device, including: a unit case (2) including an air flow channel formed therein, the air flow channel being branched into a bypass flow channel and a heating flow channel; a heater core (13) installed in the heating flow channel; and upper-part shoulder supporting portions for the heater core, each of the upper-part shoulder supporting portions (24, 25) only supports one of upper-part right and left shoulder portions (13A, 13B) of the heater core (13) installed on a bottom surface side of the heating flow channel, each of the upper-part shoulder supporting portions is provided on one of right and left side surfaces (2A, 2B) of the unit case. The vehicle air conditioning device blowing off, into a chamber, an air flow made after joining together an air flow that has passed through the heating flow channel and an air flow that has passed through the bypass flow channel.
    Type: Application
    Filed: June 3, 2011
    Publication date: November 8, 2012
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Noriyuki Chikagawa