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    SUCTION STRAINER
    1.
    发明申请
    SUCTION STRAINER 审中-公开

    公开(公告)号：US20180104628A1

    公开(公告)日：2018-04-19

    申请号：US15842977

    申请日：2017-12-15

    Applicant: YAMASHIN-FILTER CORP.

    Inventor： Meiho TAKU ,  Makoto ISHIZUKA ,  Tatsuhiro OSHITA

    IPC: B01D36/00 ,  B01D39/12 ,  B01D39/20 ,  B01D35/00 ,  B01D29/33 ,  B01D29/58

    Abstract: A tank for storing oil includes a suction strainer with first and second filtration portions. The first filtration portion has a substantially cylindrical shape and formed by bending a thin plate into a pleated shape. The second filtration portion is provided on the outer side of the first filtration portion. The second filtration portion has a substantially cylindrical shape and is formed of a material having a plurality of spaces formed in a surface and interior of the material.

    FUEL FILTER
    2.
    发明申请
    FUEL FILTER 有权

    公开(公告)号：US20250114728A1

    公开(公告)日：2025-04-10

    申请号：US18985650

    申请日：2024-12-18

    Applicant: YAMASHIN-FILTER CORP.

    Inventor： Youichi NODOMI ,  Makoto ISHIZUKA

    IPC: B01D29/21 ,  B01D29/58 ,  B01D35/00

    Abstract: A fuel filter includes a housing including a filter case and a filter element. The filter element includes a first filter including a first filtration section formed in a tubular shape by folding a sheet-like filtration member into pleats, a second filter disposed on an inner side of the first filtration section, and a first plate at which the first filter and the second filter are disposed. The second filter includes a second filtration section formed in a tubular shape by connecting both ends of a mesh-patterned thin plate, a first end portion covering a first end of the second filtration section, and a second end portion covering a second end of the second filtration section, the second end being on a side opposite to the first end. The first plate is disposed in the head and has a first through-hole formed at a center thereof.

    FILTER DEVICE
    3.
    发明申请
    FILTER DEVICE 审中-公开

    公开(公告)号：US20180229162A1

    公开(公告)日：2018-08-16

    申请号：US15953539

    申请日：2018-04-16

    Applicant: YAMASHIN-FILTER CORP.

    Inventor： Tatsuhiro OSHITA ,  Meiho TAKU ,  Makoto ISHIZUKA

    IPC: B01D35/147 ,  B01D29/07 ,  B01D29/11 ,  B01D29/58

    Abstract: When a lid covers an opening portion formed at an upper end of a filter case with a bottomed substantially cylindrical shape inside which a filter element is disposed, the internal space between the lid and the filter case is formed. A bypass flow path connecting the internal space and outside space is formed in the lid, and a relief valve disposed moveably between a position closing the bypass flow path and a position opening the bypass flow path includes an air bleeder formed from a porous material.

    TANK DEVICE
    4.
    发明申请
    TANK DEVICE 审中-公开

    公开(公告)号：US20200031570A1

    公开(公告)日：2020-01-30

    申请号：US16594865

    申请日：2019-10-07

    Applicant: YAMASHIN-FILTER CORP.

    Inventor： Makoto ISHIZUKA ,  Nobuyuki KITAJIMA

    IPC: B65D88/12 ,  B01D35/027

    Abstract: Inside a tank body storing a liquid, a return filter is provided protruding downward from an upper surface of the tank body, and a substantially plate-like (plate-shaped) float is also provided that is inserted into the tank body and floats in accordance with change in a liquid surface of the liquid stored in the tank body. The float is provided with an opening larger than a diameter of a filter case, and in a plan view, the float is disposed between the tank body and the filter case.

    FILTER DEVICE AND FILTRATION APPARATUS
    5.
    发明申请
    FILTER DEVICE AND FILTRATION APPARATUS 审中-公开

    公开(公告)号：US20200016519A1

    公开(公告)日：2020-01-16

    申请号：US16557717

    申请日：2019-08-30

    Applicant: YAMASHIN-FILTER CORP.

    Inventor： Makoto ISHIZUKA

    IPC: B01D29/88 ,  B01D29/15

    Abstract: A rod having a substantially-cylindrical shape with both ends being covered is provided to a lid body, which covers an upper end surface of a case having a bottomed substantially-cylindrical shape, the rod protruding in the case. A first hole is formed in a portion of a side surface of the rod, which is exposed to the inside of the case. Further, an air vent pit (passage) is formed in the lid body, and a second hole is formed in a portion of the side surface of the rod, which is exposed to the inside of the air vent pit. A moving member moves along the rod from a first position at which the moving member does not cover the first hole and a second position at which the moving member covers the first hole.

    STRAINER
    7.
    发明申请
    STRAINER 审中-公开

    公开(公告)号：US20200038785A1

    公开(公告)日：2020-02-06

    申请号：US16598719

    申请日：2019-10-10

    Applicant: YAMASHIN-FILTER CORP.

    Inventor： Makoto ISHIZUKA

    IPC: B01D29/07 ,  B01D19/00

    Abstract: A strainer includes a second filtration section having a substantially cylindrical shape with both ends connected, formed by folding a thin plate-shaped filter medium in a pleated shape, which is provided inside a first filtration section having a substantially cylindrical shape with both ends connected, formed by folding the thin plate-shaped filter medium in a pleated shape, without coming into contact with the first filtration section. An outer cylinder having a substantially cylindrical shape having a height higher than that of each of the first filtration section and the second filtration section is also provided outside the first filtration section, without coming into contact with the first filtration section. In addition, an upper plate, having a substantially discoid shape covering an upper side of each of the first filtration section, the second filtration section, and the outer cylinder, is formed with a plurality of first air vent holes between the outer cylinder and the first filtration section and formed with a plurality of second air vent holes between the first filtration section and the second filtration section, in a plan view.

    FILTER DEVICE
    8.
    发明申请
    FILTER DEVICE 审中-公开

    公开(公告)号：US20190240599A1

    公开(公告)日：2019-08-08

    申请号：US16388390

    申请日：2019-04-18

    Applicant: YAMASHIN-FILTER CORP.

    Inventor： Makoto ISHIZUKA

    IPC: B01D29/21 ,  B01D35/027

    Abstract: When air inside a filter device is purged, filtered liquid can be discharged together with air to the outside of the filter device. A casing is provided inside a tank, a filter element is provided inside the casing, and a lid is provided so as to cover the upper face of the casing and the upper face of the tank. A first through-hole is formed in the substantially center of an upper plate that covers the upper end face of a filtration member of a filter element and is abutted with the lower face of the lid; in a plan view, a second through-hole, in which a first opening being one end is disposed at a position overlapped with the first through-hole, and a second opening being the other end is disposed between the side face of the tank and the side face of the casing, is formed in the lid; and the first through-hole and the second through-hole communicate with the hollow portion of the filtration member and space that is inside the tank and outside the casing.

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