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    LOW OXYGEN AIR SUPPLY SYSTEM
    2.
    发明申请
    LOW OXYGEN AIR SUPPLY SYSTEM 有权

    公开(公告)号：US20250161862A1

    公开(公告)日：2025-05-22

    申请号：US19030012

    申请日：2025-01-17

    Applicant: DAIKIN INDUSTRIES, LTD.

    Inventor： Yasutaka KOGA ,  Teruaki TSUCHIYA ,  Yutaro KASHIMA ,  Keita KONDO ,  Hiroyuki NAKATANI

    IPC: B01D53/047 ,  A63B69/00

    Abstract: A low oxygen air supply system includes first and second low oxygen air supply units, a fan to supply the first target space with outdoor air, at least one oxygen sensor to detect oxygen concentration in the first target space, and a control unit to control behavior of the first low oxygen air supply unit, the second low oxygen air supply unit, and the fan. Each of the first low oxygen air supply unit and the second low oxygen air supply unit generates a low oxygen air lower in oxygen concentration than air and supply a first target space with the low oxygen air thus generated.

    FLUORINE-CONTAINING COPOLYMER
    3.
    发明申请
    FLUORINE-CONTAINING COPOLYMER 有权

    公开(公告)号：US20250145816A1

    公开(公告)日：2025-05-08

    申请号：US19013081

    申请日：2025-01-08

    Applicant: DAIKIN INDUSTRIES, LTD.

    Inventor： Tadaharu ISAKA ,  Yumi ZENKE ,  Yukari YAMAMOTO

    IPC: C08L27/18

    Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.0 to 11.5% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.3 to 0.7% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.9 to 7.5 g/10 min.

    HEAT EXCHANGER
    4.
    发明申请
    HEAT EXCHANGER 有权

    公开(公告)号：US20250137730A1

    公开(公告)日：2025-05-01

    申请号：US19012587

    申请日：2025-01-07

    Applicant: DAIKIN INDUSTRIES, LTD.

    Inventor： Chie EMURA ,  Takuro YAMADA ,  Tomoki HIROKAWA ,  Ko TERAI

    IPC: F28D9/00 ,  F28F3/08

    Abstract: A heat exchanger causes heat exchange between water and a refrigerant. The heat exchanger includes a first flow path through which the water flows, and a second flow path through which the refrigerant flows. A fragile portion is formed by any one of members forming the first flow path other than a partition wall partitioning the first flow path and the second flow path or any one of joining portions where members forming the first flow path are joined to each other. The fragile portion has a lower strength than the other members forming the first flow path.

    Method for producing fluorovinyl amide compound
    5.
    发明授权
    Method for producing fluorovinyl amide compound 有权

    公开(公告)号：US12281075B2

    公开(公告)日：2025-04-22

    申请号：US17299602

    申请日：2019-12-05

    Applicant: DAIKIN INDUSTRIES, LTD.

    Inventor： Naoyuki Hoshiya ,  Motoshi Matsui ,  Yosuke Kishikawa

    IPC: C07D211/76 ,  B01J23/44 ,  C07C231/12 ,  C07D207/27 ,  C07D209/44 ,  C07D263/22

    Abstract: An object of this disclosure provides a novel method for producing a fluorovinyl amide compound and the like. The object is achieved by a method for producing a compound represented by formula (1): wherein Rf is —F or fluoroalkyl, Ra1 is —H or an organic group, and Ra2 is —H or an organic group, or (i) Ra1 and Ra2, (ii) Ra1 and Rf, or (iii) Rf and Ra2, may be linked to each other, Rb1 is —H or an organic group, and Rb2 is —H or an organic group, or Rb1 and Rb2 may be linked together with their adjacent atoms to form a nitrogen-containing ring optionally having one or more substituents, the method comprising step A of reacting a compound represented by formula (2): wherein Rx is a leaving group, with a compound represented by formula (3) or a salt thereof: in the presence of a transition metal catalyst.

    Worker terminal, moving image processing method and moving image processing program
    8.
    发明授权
    Worker terminal, moving image processing method and moving image processing program 有权

    公开(公告)号：US12267617B2

    公开(公告)日：2025-04-01

    申请号：US18256742

    申请日：2021-12-22

    Applicant: DAIKIN INDUSTRIES, LTD. ,  Fairy Devices Inc.

    Inventor： Yuuko Kuroda

    IPC: H04N5/268 ,  G06V20/52 ,  H04N7/18 ,  H04N23/667

    Abstract: The communication amount is reduced while maintaining image quality when transmitting moving images by using a worker terminal. A worker terminal is configured to be connected to a support apparatus and transmit a moving image to the support apparatus upon encoding the moving image, the support apparatus being configured to support, from a remote location, work performed by a worker including installing, repairing, inspecting, or removing a device, based on the moving image captured at a work site, the worker terminal including a camera configured to capture the moving image; an identifying unit configured to perform a recognition process on the moving image captured by the camera to identify a target area; and a processing unit configured to process the moving image such that a data amount per unit area at a time of transmitting the moving image is different for the target area and a non-target area other than the target area, in response to detecting that the target area is identified in the moving image.

    Compressor having bulged bushings
    9.
    发明授权
    Compressor having bulged bushings 有权

    公开(公告)号：US12258965B2

    公开(公告)日：2025-03-25

    申请号：US18693604

    申请日：2022-09-14

    Applicant: TAIHO KOGYO Co., Ltd. ,  Daikin Industries, Ltd.

    Inventor： Ukyo Ishiguro ,  Shingo Goto ,  Ryohei Nakamura ,  Yasuyuki Tago

    IPC: F01C21/02 ,  F04B27/08 ,  F04C18/04 ,  F04C18/32 ,  F04C18/332 ,  F04C18/39 ,  F04C29/02

    Abstract: A compression mechanism that can suppress generation of galling and seizure is provided. The compression mechanism includes a bush 60 including a first sliding surface 61 sliding with an inner surface 45a of a bush hole 45 and a second sliding surface 63 sliding with a side surface 52a of a blade of a piston, and includes at least one of a first bulge 62 formed on one of the first sliding surface 61 and the inner surface 45a such that a gap X between the first sliding surface 61 and the inner surface 45a gradually decreases toward a direction in which lubricant Y is drawn between the first sliding surface 61 and the inner surface 45a along with rocking of the bush 60, and a second bulge 64 formed on the second sliding surface 63 such that the gap X between the second sliding surface 63 and the side surface 52a gradually decreases toward a direction in which the lubricant Y is drawn between the second sliding surface 63 and the side surface 52a along with forward and backward movement of the blade.

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