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    Ventilation housing
    1.
    发明授权
    Ventilation housing 有权

    公开(公告)号：US11493199B2

    公开(公告)日：2022-11-08

    申请号：US17283894

    申请日：2019-10-11

    Applicant: NITTO DENKO CORPORATION

    Inventor： Daisuke Kitagawa ,  Satoshi Nishiyama ,  Youzou Yano ,  Tomoyuki Kasagi

    IPC: F21V31/03 ,  F21S45/30

    Abstract: A ventilation housing of the present disclosure includes: a housing; and a ventilation assembly. The housing includes a tubular projection extending to project from an outer surface and internally having a first space communicating the inside and the outside of the housing. The ventilation assembly includes: an internal member being a tubular body having an opening at a first end portion and an opening at a second end portion; a gas-permeable membrane covering the opening at the first end portion of the internal member; and an external member being a tubular body having a bottom, the external member being joined to the internal member with the internal member inserted in the interior of the external member from the first end portion side. The ventilation assembly is fixed to the projection with the projection inserted in the opening at the second end portion of the internal member to make an inner peripheral surface of the internal member and an outer peripheral surface of the projection abut each other. The ventilation assembly has a second space serving as a ventilation path connecting the gas-permeable membrane and the outside of the ventilation assembly in the inside of the internal member, the inside of the external member, and/or an interspace between the internal member and the external member joined together. A height H1 of the internal member is 6 to 10 mm. A ratio of the height H1 of the internal member to a height H2 of the projection is 1.00 to 1.70. The ventilation housing of the present disclosure exhibits excellent performance in terms of moisture permeation between the inside and the outside of the housing and is capable of reducing dropping of the ventilation assembly from the projection of the housing.

    Plate-like composite material
    2.
    发明授权
    Plate-like composite material 有权

    公开(公告)号：US11472165B2

    公开(公告)日：2022-10-18

    申请号：US17263695

    申请日：2019-07-31

    Applicant: NITTO DENKO CORPORATION

    Inventor： Shunji Imamura ,  Shimpei Yakuwa ,  Kou Uemura ,  Tomoyuki Kasagi ,  Yuya Kitagawa

    IPC: B32B27/06 ,  B32B5/18 ,  B32B27/20 ,  B32B27/32 ,  C08J5/12 ,  C08J5/18 ,  H01Q1/36 ,  H01Q9/04

    Abstract: A plate-like composite material in which peeling of a conductor layer and the like serving as wiring is less liable to occur is provided. The plate-like composite material includes: a pore-containing layer, which contains a fluororesin and a filler, and which contains pores; and a resin layer containing a fluororesin bonded to one surface, or each of both surfaces, of the pore-containing layer, wherein the pore-containing layer includes, in a vicinity of an interface with the resin layer, a high resin content region, which contains the fluororesin in a content higher than a content in a remaining region of the pore-containing layer, and which contains the pores in a content lower than a content in the remaining region, and wherein the high resin content region has a thickness starting from the interface of from 0.20 μm to 10 μm.

    PLATE-LIKE COMPOSITE MATERIAL CONTAINING POLYTETRAFLUOROETHYLENE AND FILLER
    3.
    发明申请
    PLATE-LIKE COMPOSITE MATERIAL CONTAINING POLYTETRAFLUOROETHYLENE AND FILLER 审中-公开

    公开(公告)号：US20200079931A1

    公开(公告)日：2020-03-12

    申请号：US16615623

    申请日：2018-05-30

    Applicant: Tao Gu ,  NITTO DENKO CORPORATION

    Inventor： Shimpei Yakuwa ,  Kou Uemura ,  Shunji Imamura ,  Tomoyuki Kasagi ,  Tao Gu

    IPC: C08K7/26 ,  C08K3/36 ,  H05K1/03

    Abstract: Provided is a composite material that shows a low specific dielectric constant, and that hardly causes an appearance failure or changes in characteristics when exposed to, for example, a treatment liquid to be used in the production of an electronic circuit board. Specifically, a plate-like composite material including polytetrafluoroethylene and a predetermined filler, and satisfying a predetermined condition serves as a composite material that shows a low specific dielectric constant, and that hardly causes an appearance failure or changes in characteristics even when exposed to, for example, a treatment liquid to be used in the production of an electronic circuit board.

    Ventilation assembly and ventilation housing
    4.
    发明授权
    Ventilation assembly and ventilation housing 有权

    公开(公告)号：US11963317B2

    公开(公告)日：2024-04-16

    申请号：US17282669

    申请日：2019-10-11

    Applicant: NITTO DENKO CORPORATION

    Inventor： Daisuke Kitagawa ,  Tomoyuki Kasagi ,  Youzou Yano

    IPC: H05K5/02

    CPC classification number: H05K5/0213 ,  H05K5/0216

    Abstract: A ventilation assembly of the present disclosure includes: an internal member being a tubular body having an opening at a first end portion and an opening at a second end portion; an external member being a tubular body having a bottom; and a gas-permeable membrane covering the opening at the first end portion of the internal member, wherein the external member is joined to the internal member with the internal member inserted in the interior of the external member from the first end portion side, the ventilation assembly has a second space serving as a ventilation path connecting the gas-permeable membrane and the outside of the ventilation assembly in at least one selected from the inside of the internal member, the inside of the external member, and an interspace between the internal member and the external member joined together, and the internal member includes one first projecting portion or two or more first projecting portions projecting from the inner peripheral surface at a position on the second end portion side with respect to the gas-permeable membrane. The ventilation assembly of the present disclosure can prevent the gas-permeable membrane from being damaged at the time of fixation to the projection even when the ventilation assembly is reduced in height.

    Ventilation component
    6.
    发明授权
    Ventilation component 有权

    公开(公告)号：US11739853B2

    公开(公告)日：2023-08-29

    申请号：US17425220

    申请日：2020-01-24

    Applicant: NITTO DENKO CORPORATION

    Inventor： Yusuke Nakayama ,  Youzou Yano ,  Tomoyuki Kasagi ,  Akira Miyagaki

    IPC: F16K15/14 ,  F16K24/04

    CPC classification number: F16K15/148 ,  F16K24/04

    Abstract: A ventilation component includes a valve body portion, a shaft portion, a ventilation path, and a gas-permeable membrane. The shaft portion extends in a normal direction of the valve body portion. The shaft portion supports the valve body portion. The ventilation path extends through the shaft portion. The gas-permeable membrane closes the ventilation path. In a state where the ventilation component is fixed to a housing, a flow of gas passing through a peripheral opening is blocked by the valve body portion, and ventilation occurs between an inner space and an external space via the gas-permeable membrane. When a pressure difference obtained by subtracting a pressure of the external space from a pressure of the inner space is equal to or higher than a predetermined value, the valve body portion elastically deforms to be away from an outer surface to release the pressure of the inner space.

    Ventilation component
    8.
    发明授权
    Ventilation component 有权

    公开(公告)号：US12144130B2

    公开(公告)日：2024-11-12

    申请号：US17774341

    申请日：2020-11-05

    Applicant: NITTO DENKO CORPORATION

    Inventor： Youzou Yano ,  Tomoyuki Kasagi

    IPC: H05K5/02 ,  B01D53/22 ,  B01D69/10 ,  B60R16/02 ,  F16B19/00 ,  F16J15/10

    Abstract: A ventilation component 1 includes a ventilation path 10 for allowing ventilation between an inner space 2u and an outer space 2s of a housing 2. The ventilation path 10 is a path for allowing ventilation between the internal space 2u and the outer space 2s when the ventilation component 1 is attached to an edge 2f. The ventilation component 1 includes a supporting portion 12, a gas-permeable membrane 11, a protruding portion 13, and a sealing member 14. The supporting portion 12 surrounds the ventilation path 10. The gas-permeable membrane 11 is bonded to the supporting portion 12 and closes the ventilation path 10 in a ventilatable manner. The protruding portion 13 is a part having a tubular shape, the part being arranged to protrude from the supporting portion 12 and surround one end of the ventilation path 10, the part being configured to be in contact with the edge 2f when the ventilation component 1 is attached to the edge 2f. The ventilation component 1 satisfies requirements 2.5≤Gs/Gt≤5.0 and 1.0≤{(Gs−Gt)/2}/Lt≤3.0.

    Plate-like composite material containing polytetrafluoroethylene and filler
    9.
    发明授权
    Plate-like composite material containing polytetrafluoroethylene and filler 有权

    公开(公告)号：US11453762B2

    公开(公告)日：2022-09-27

    申请号：US16615623

    申请日：2018-05-30

    Applicant: NITTO DENKO CORPORATION ,  Tao Gu

    Inventor： Shimpei Yakuwa ,  Kou Uemura ,  Shunji Imamura ,  Tomoyuki Kasagi ,  Tao Gu

    IPC: C08K7/26 ,  C08K3/36 ,  H05K1/03

    Abstract: Provided is a composite material that shows a low specific dielectric constant, and that hardly causes an appearance failure or changes in characteristics when exposed to, for example, a treatment liquid to be used in the production of an electronic circuit board. Specifically, a plate-like composite material including polytetrafluoroethylene and a predetermined filler, and satisfying a predetermined condition serves as a composite material that shows a low specific dielectric constant, and that hardly causes an appearance failure or changes in characteristics even when exposed to, for example, a treatment liquid to be used in the production of an electronic circuit board.

    PLATE-LIKE COMPOSITE MATERIAL
    10.
    发明申请
    PLATE-LIKE COMPOSITE MATERIAL 有权

    公开(公告)号：US20210221106A1

    公开(公告)日：2021-07-22

    申请号：US17263695

    申请日：2019-07-31

    Applicant: NITTO DENKO CORPORATION

    Inventor： Shunji Imamura ,  Shimpei Yakuwa ,  Kou Uemura ,  Tomoyuki Kasagi

    IPC: B32B27/06 ,  C08J5/12 ,  C08J5/18 ,  B32B5/18 ,  B32B27/20 ,  B32B27/32

    Abstract: A plate-like composite material in which peeling of a conductor layer and the like serving as wiring is less liable to occur is provided. The plate-like composite material includes: a pore-containing layer, which contains a fluororesin and a filler, and which contains pores; and a resin layer containing a fluororesin bonded to one surface, or each of both surfaces, of the pore-containing layer, wherein the pore-containing layer includes, in a vicinity of an interface with the resin layer, a high resin content region, which contains the fluororesin in a content higher than a content in a remaining region of the pore-containing layer, and which contains the pores in a content lower than a content in the remaining region, and wherein the high resin content region has a thickness starting from the interface of from 0.20 μm to 10 μm.

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