Patents by Inventor Noriyuki Okuda

Noriyuki Okuda 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: 20230264934
    Abstract: A forklift includes a vehicle and a cargo handling device. The cargo handling device includes a mast, a lift bracket, and a pair of forks that includes claw portions, the forks being separated from each other in a vehicle width direction. The vehicle includes a vehicle main body, and a pair of straddle legs that is provided such that the straddle legs extend to the front side from a lower portion of the vehicle main body and the cargo handling device is interposed between the straddle legs in the vehicle width direction and that supports the mast such that the cargo handling device is movable forward and backward between an advance position and a retreat position, and front ends of the claw portions are positioned behind front ends of the straddle legs when the cargo handling device is at the retreat position.
    Type: Application
    Filed: February 16, 2023
    Publication date: August 24, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Tomoya Okuda, Megumu Tsuruta, Tatsuya Sato, Naoto Kawauchi, Mitsuhisa Kawabe, Masayuki Ishikawa, Noriyuki Hasegawa, Keitaro Kamata, Yusuke Otaki, Yu Shibata, Sho Onodera, Kensuke Nishiura, Ei Onogawa
  • Publication number: 20220003472
    Abstract: The technique in PTL 1 is incapable of grasping a decrease in the amount of a refrigerant from an initial amount of the refrigerant, and the determination of the amount of the refrigerant is insufficient for the purpose other than protection of a compressor. A refrigeration cycle apparatus includes an air temperature sensor, and a condensation temperature sensor. The air temperature sensor detects an air temperature, which is a temperature of air that flows into a condenser. The condensation temperature sensor detects a condensation temperature of the refrigerant that flows through the condenser. The apparatus is configured to acquire a temperature difference between the air temperature and the condensation temperature. The apparatus is further configured to determine an amount of the refrigerant included in the refrigerant circuit by comparing a first temperature difference and a second temperature difference with each other. The first temperature difference is a temperature difference at a first timing.
    Type: Application
    Filed: November 12, 2019
    Publication date: January 6, 2022
    Applicant: Daikin Industries, Ltd.
    Inventors: Noriyuki OKUDA, Tooru NISHIKAWA, Masahiro HONDA, Hiroshi YOH
  • 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
  • Patent number: 10274218
    Abstract: This system correctly obtains a thermal sensation of a person in a room to provide a comfortable environment. A first parameter deriver derives, as a first parameter, a ratio of a low frequency component to a high frequency component in a variation of R-R intervals of a person, based on his/her body movement. A second parameter deriver derives, as a second parameter, any one of a coefficient of variation of R-R intervals, a respiration rate, or a heart rate of the person, based on the body movement of the person. An estimator estimates a thermal sensation of the person, based on the first parameter and the second parameter. A CPU for air-conditioning control controls an air-conditioning capacity of the air conditioner, based on a result of the estimation by the estimator.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 30, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takehiko Hiei, Kazuhisa Shigemori, Noriyuki Okuda
  • Publication number: 20180231269
    Abstract: This system correctly obtains a thermal sensation of a person in a room to provide a comfortable environment. A first parameter deriver derives, as a first parameter, a ratio of a low frequency component to a high frequency component in a variation of R-R intervals of a person, based on his/her body movement. A second parameter deriver derives, as a second parameter, any one of a coefficient of variation of R-R intervals, a respiration rate, or a heart rate of the person, based on the body movement of the person. An estimator estimates a thermal sensation of the person, based on the first parameter and the second parameter. A CPU for air-conditioning control controls an air-conditioning capacity of the air conditioner, based on a result of the estimation by the estimator.
    Type: Application
    Filed: June 3, 2016
    Publication date: August 16, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takehiko HIEI, Kazuhisa SHIGEMORI, Noriyuki OKUDA
  • Patent number: 9795056
    Abstract: A cooling member includes a heat-transfer member, a refrigerant introducing pipe and a covering material. The heat-transfer member has a surface with a groove opened to the surface of the heat-transfer member. The refrigerant introducing pipe is pressed into the groove. The covering material coats the surface of the heat-transfer member and the refrigerant introducing pipe.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: October 17, 2017
    Assignee: Daikin Industries, Ltd.
    Inventors: Junichi Teraki, Mitsuhiro Tanaka, Noriyuki Okuda
  • Publication number: 20160076786
    Abstract: An air conditioning indoor unit includes a movable first air direction adjustment plate that changes an up and down direction of the outlet air, a second air direction adjustment plate disposed adjacent to the air outlet, and a control unit that controls postures of the first and second adjustment plates. The second adjustment plate has at least a front end portion housed in an indoor unit front portion outside a blowing path when housed. In a Coanda effect utilization mode the control unit controls the postures of the first and second adjustment plates such that the second adjustment plate is spaced apart from the indoor unit front portion and a height position of a rear end portion is lower than when operation is stopped, and the adjustment plates form a predetermined angle to change the outlet air to a Coanda air flow along an undersurface of the second adjustment plate.
    Type: Application
    Filed: November 24, 2015
    Publication date: March 17, 2016
    Inventors: Masanao YASUTOMI, Takahiro OKAMOTO, Masashi KAMADA, Hironobu TERAOKA, Noriyuki OKUDA
  • Patent number: 9234671
    Abstract: An air conditioning indoor unit includes a movable first air direction adjustment plate that changes an up and down direction of the outlet air, a second air direction adjustment plate disposed adjacent to the air outlet, and a control unit that controls postures of the first and second adjustment plates. The second adjustment plate has at least a front end portion housed in an indoor unit front portion outside a blowing path when housed. In a Coanda effect utilization mode the control unit controls the postures of the first and second adjustment plates such that the second adjustment plate is spaced apart from the indoor unit front portion and a height position of a rear end portion is lower than when operation is stopped, and the adjustment plates form a predetermined angle to change the outlet air to a Coanda air flow along an undersurface of the second adjustment plate.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: January 12, 2016
    Assignee: Daikin Industries, Ltd.
    Inventors: Masanao Yasutomi, Takahiro Okamoto, Masashi Kamada, Hironobu Teraoka, Noriyuki Okuda
  • Patent number: 9234684
    Abstract: A valve case (11) includes a plurality of ports (P1, P2, P3, . . . ). A valve body (50) rotates in the valve case (11) and slide on openings of predetermined ones of the ports (P1, P2, P3, . . . ) to switch a communication state among the ports (P1, P2, P3, . . . ). A motor (31) rotates the valve body (50). A controller (500) controls a rotation speed (?) of the motor (31) in accordance with a differential pressure (?P) between internal and external pressures of the valve body (50).
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: January 12, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Makoto Kojima, Noriyuki Okuda, Takayuki Setoguchi
  • Publication number: 20150116942
    Abstract: A cooling member includes a heat-transfer member, a refrigerant introducing pipe and a covering material. The heat-transfer member has a surface with a groove opened to the surface of the heat-transfer member. The refrigerant introducing pipe is pressed into the groove. The covering material coats the surface of the heat-transfer member and the refrigerant introducing pipe.
    Type: Application
    Filed: January 9, 2015
    Publication date: April 30, 2015
    Inventors: Junichi TERAKI, Mitsuhiro TANAKA, Noriyuki OKUDA
  • Patent number: 9010142
    Abstract: An air conditioner includes a printed circuit board to which a power device is attached; and a refrigerant jacket which is connected to the power device, and through which refrigerant used for a refrigeration cycle flows. The printed circuit board is accommodated in a switch box. The refrigerant jacket is fixed to the switch box through a heat transfer plate, and the refrigerant jacket and the printed circuit board are connected together by the switch box.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: April 21, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Noriyuki Okuda, Norihiro Takenaka, Tomohiro Masui
  • Publication number: 20150075202
    Abstract: A refrigeration device includes a compressor, an outdoor heat exchanger, an expansion mechanism, an indoor heat exchanger, and a storage tank. The compressor, the outdoor heat exchanger, the expansion mechanism and the indoor heat exchanger are connected to each other. During a cooling operation, a refrigerant flows sequentially through the compressor, the outdoor heat exchanger, the expansion mechanism, and the indoor heat exchanger. During a heating operation, the refrigerant flows sequentially through the compressor, the indoor heat exchanger, the expansion mechanism, and the outdoor heat. The storage tank is configured to store the refrigerant and is provided between the outdoor heat exchanger and the expansion mechanism. The refrigeration device uses R32 as the refrigerant. A capacity of the outdoor heat exchanger is less than or equal to a capacity of the indoor heat exchanger.
    Type: Application
    Filed: March 26, 2013
    Publication date: March 19, 2015
    Inventors: Noriyuki Okuda, Takayuki Setoguchi, Keisuke Tanimoto
  • Patent number: 8978404
    Abstract: An air conditioner includes a printed circuit board (31) to which a power device (33) is attached; and a refrigerant jacket (20) which is connected to the power device (33), and through which refrigerant used for a refrigeration cycle flows. The printed circuit board (31) is accommodated in a switch box (40). The refrigerant jacket (20) is fixed to the switch box (40) through a heat transfer plate (50), and the refrigerant jacket (20) and the printed circuit board (31) are connected together by the switch box (40).
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: March 17, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Noriyuki Okuda, Norihiro Takenaka, Tomohiro Masui
  • Publication number: 20140360223
    Abstract: In an air-conditioning apparatus, refrigerant flows sequentially through a compressor, an outdoor heat exchanger, expansion mechanisms, and an indoor heat exchanger during a cooling operation, and refrigerant flows sequentially through the compressor, the indoor heat exchanger, the expansion mechanisms, and the outdoor heat exchanger during a heating operation. Capacity of the outdoor heat exchanger is 30% to 90% of the indoor heat exchanger. The expansion mechanisms include an upstream-side and downstream-side expansion mechanisms depressurizing refrigerant from high to intermediate pressure, and from intermediate to low pressure in the refrigerant cycle, respectively. The refrigerant is R32. A refrigerant storage tank that stores the intermediate pressure refrigerant is provided between the upstream-side and downstream side expansion mechanisms.
    Type: Application
    Filed: December 19, 2012
    Publication date: December 11, 2014
    Inventors: Takayuki Setoguchi, Keisuke Tanimoto, Noriyuki Okuda, Takamune Okui, Junichi Shimoda, Tsuyoshi Yamada
  • Publication number: 20140311179
    Abstract: A valve case (11) includes a plurality of ports (P1, P2, P3, . . . ). A valve body (50) rotates in the valve case (11) and slide on openings of predetermined ones of the ports (P1, P2, P3, . . . ) to switch a communication state among the ports (P1, P2, P3, . . . ). A motor (31) rotates the valve body (50). A controller (500) controls a rotation speed (?) of the motor (31) in accordance with a differential pressure (?P) between internal and external pressures of the valve body (50).
    Type: Application
    Filed: June 20, 2012
    Publication date: October 23, 2014
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Makoto Kojima, Noriyuki Okuda, Takayuki Setoguchi
  • Publication number: 20140227961
    Abstract: An air conditioning indoor unit includes a movable first air direction adjustment plate that changes an up and down direction of the outlet air, a second air direction adjustment plate disposed adjacent to the air outlet, and a control unit that controls postures of the first and second adjustment plates. The second adjustment plate has at least a front end portion housed in an indoor unit front portion outside a blowing path when housed. In a Coanda effect utilization mode the control unit controls the postures of the first and second adjustment plates such that the second adjustment plate is spaced apart from the indoor unit front portion and a height position of a rear end portion is lower than when operation is stopped, and the adjustment plates form a predetermined angle to change the outlet air to a Coanda air flow along an undersurface of the second adjustment plate.
    Type: Application
    Filed: September 5, 2012
    Publication date: August 14, 2014
    Inventors: Masanao Yasutomi, Takahiro Okamoto, Masashi Kamada, Hironobu Teraoka, Noriyuki Okuda
  • Publication number: 20140190196
    Abstract: An air conditioner includes a printed circuit board to which a power device is attached; and a refrigerant jacket which is connected to the power device, and through which refrigerant used for a refrigeration cycle flows. The printed circuit board is accommodated in a switch box. The refrigerant jacket is fixed to the switch box through a heat transfer plate, and the refrigerant jacket and the printed circuit board are connected together by the switch box.
    Type: Application
    Filed: March 10, 2014
    Publication date: July 10, 2014
    Applicant: Daikin Industries, Ltd.
    Inventors: Noriyuki OKUDA, Norihiro TAKENAKA, Tomohiro MASUI
  • Patent number: 8763640
    Abstract: A movable valve element is provided so as to rotate about a predetermined shaft center. A first valve seat and a second valve seat are respectively arranged apart from the movable valve element with predetermined clearances on both sides of the movable valve element in a direction along the shaft center. A first sealing member is arranged around a communication path so as to seal a space inside the communication path from a space defined by the clearance on a side close to the first valve seat. A second sealing member is arranged around the communication path so as to seal the space inside the communication path from a space defined by the clearance on a side close to the second valve seat.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: July 1, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Makoto Kojima, Noriyuki Okuda, Takayuki Setoguchi
  • Publication number: 20140134939
    Abstract: A wall-mounted air conditioning indoor unit includes a casing, and an air flow direction adjustment unit with plural guide blades positioned between right and left side walls of the outlet passage of the casing. A first of the guide blades is positioned closest to a predetermined side wall of the right and left side walls. In a state in which the first guide blade is postured closer to the predetermined side wall as the first guide blade extends on a downstream side, first and second gaps are formed between first and second sections of the first guide blade and the predetermined side wall, respectively. The first section is part of an end portion of the first blade on the downstream side. The second section is outside the first section. The first gap is equal to or less than 10 mm. The second gap is greater than 10 mm.
    Type: Application
    Filed: June 27, 2012
    Publication date: May 15, 2014
    Inventors: Masashi Kamada, Hironobu Teraoka, Noriyuki Okuda, Tooru Shigesawa, Kouichi Yasuo, Tatsuhiko Akai, Koutarou Kuida
  • Publication number: 20130174595
    Abstract: A refrigeration circuit includes a compressor, an outdoor heat exchanger, an expansion valve, an indoor heat exchanger, and a refrigerant storage tank provided between the outdoor heat exchanger and the expansion value. Refrigerant sequentially flows through the compressor, the outdoor heat exchanger, the expansion valve and the indoor heat exchanger during an air-cooling operation. Refrigerant sequentially flows through the compressor, the indoor heat exchanger, the expansion valve, and the outdoor heat exchanger during an air-warming operation. Preferably the indoor heat exchanger is a cross-fin heat exchanger, and the outdoor heat exchanger is a stacked heat exchanger. Preferably, a capacity of the outdoor heat exchanger is no more than 100% of a capacity of the indoor heat exchanger.
    Type: Application
    Filed: September 22, 2011
    Publication date: July 11, 2013
    Applicant: Daikin Industries, Ltd.
    Inventors: Noriyuki Okuda, Takayuki Setoguchi, Keisuke Tanimoto, Takamune Okui