公开(公告)号：US20240353048A1

公开(公告)日：2024-10-24

申请号：US18685549

申请日：2022-06-30

Applicant: FUJIKIN INCORPORATED

Inventor： Yasumasa Yanagida ,  Koji Hiramatsu ,  Tomohiro Mouri ,  Tadayuki Yakushijin ,  Kunihiko Daido

IPC: F16L55/24 ,  B01D46/24

CPC classification number: F16L55/24 ,  B01D46/2403

Abstract: The present invention has a purpose of providing a joint with a built-in filter capable of replacing the filter without requiring removal of the joint from piping, thereby facilitating the replacement of the filter. The joint with the built-in filter includes: first and second inlet/outlet sections; a communication space formed to communicate with the first and second inlet/outlet sections; and a maintenance opening sealed in an airtight manner during non-maintenance. A filter element has: a cylindrical filter body; a base end section attached to an opening at one end of the filter body in an airtight manner and including a seal ring disposed between an outer circumferential surface thereof and an inner surface of the communication space; and a tip section disposed to seal an opening at the other end of the filter body in the airtight manner.

公开(公告)号：US20230160478A1

公开(公告)日：2023-05-25

申请号：US17921685

申请日：2021-04-23

Applicant: FUJIKIN INCORPORATED

Inventor： Koji Hiramatsu ,  Tomohiro Mouri ,  Tomoya Kanzaki ,  Tadayuki Yakushijin

IPC: F16K1/46 ,  F16K41/06

CPC classification number: F16K1/46 ,  F16K41/06

Abstract: Provided is a valve with which a seal member is not damaged when pressure accumulated near the seal member is released. This valve includes a valve box having a valve chamber, a valve seat provided in the valve chamber and having a seat surface, a stem including, at a tip end thereof, a valve element configured to abut against and move away from the seat surface due to an operation of an actuator, a seal space provided with a seal member configured to prevent a fluid from leaking, a seal opening space formed outside the seal space, and a seal pressing member configured to press and fix the seal member to a valve chamber side. The valve box is formed with a leak hole through which the seal space and the outside of the valve box communicate.

公开(公告)号：US10371270B2

公开(公告)日：2019-08-06

申请号：US15559980

申请日：2016-03-04

Applicant: FUJIKIN INCORPORATED

Inventor： Takashi Funakoshi ,  Tadayuki Yakushijin ,  Tomohiro Nakata

IPC: F16K1/14 ,  F16K7/16 ,  F16K31/06 ,  F16K31/12 ,  F16K31/44 ,  F16K31/122

Abstract: Provided is a diaphragm valve that improves the durability of a diaphragm by focusing on the ratio of the radius of curvature of a pressing surface of a diaphragm presser to the radius of curvature of the diaphragm. SRb/SRa=0.4 to 0.6 is satisfied, wherein SRa represents the radius of curvature of a diaphragm 5 and SRb represents the radius of curvature of a pressing surface of a diaphragm presser 6.

公开(公告)号：US10132415B2

公开(公告)日：2018-11-20

申请号：US15502842

申请日：2015-12-14

Applicant: FUJIKIN INCORPORATED

Inventor： Tsuyoshi Tanikawa ,  Michio Yamaji ,  Tadayuki Yakushijin ,  Keisuke Ishibashi ,  Yasumasa Yanagida

IPC: F16K31/12 ,  F16K1/52 ,  F16K31/122 ,  F16K35/00

Abstract: Provided is a fluid controller which enables precise flow-rate adjustment while securing the durability. The fluid controller includes a stem vertical-movement-amount upper-limit-value setting means 10 which sets an upper limit value of a vertical movement amount of a stem 8 associated with opening and closing operations. The fluid controller further includes a stem vertical-movement-amount fine-adjustment means 11 which changes the vertical movement amount of the stem 8 associated with the opening and closing operations, within a range of not greater than the upper limit value.

公开(公告)号：US09651467B2

公开(公告)日：2017-05-16

申请号：US14888841

申请日：2014-04-30

Applicant: TOKUSHIMA UNIVERSITY ,  FUJIKIN INCORPORATED

Inventor： Yoshihiro Deguchi ,  Masaaki Nagase ,  Ryousuke Dohi ,  Nobukazu Ikeda ,  Kouji Nishino ,  Michio Yamaji ,  Tadayuki Yakushijin

IPC: G01N9/00 ,  G01N21/05 ,  G01N21/59 ,  G01N9/24 ,  G01N21/33 ,  G01N21/85

CPC classification number: G01N9/00 ,  G01N9/24 ,  G01N21/05 ,  G01N21/33 ,  G01N21/59 ,  G01N21/85 ,  G01N2201/08

Abstract: This invention is related to an optical-analysis-type raw material fluid density detector including a detector main body and a light oscillation unit and a light detection unit that are provided on the upper surface or the under surface of the detector main body, in which the detector main body has at least one recess formed in the upper surface and the under surface, a fluid flow path connecting a fluid inlet of the detector main body to the recess, a fluid flow path connecting the recesses to each other, and a fluid flow path connecting the recess to a fluid outlet of the detector main body; the light oscillation unit is disposed in the recess that is closest to the inlet; and light detection units are disposed in the remaining recesses.

公开(公告)号：US20150369370A1

公开(公告)日：2015-12-24

申请号：US14740854

申请日：2015-06-16

Applicant: FUJIKIN INCORPORATED

Inventor： Tsuyoshi Tanikawa ,  Tadayuki Yakushijin ,  Keisuke Ishibashi ,  Yasumasa Yanagida

IPC: F16K1/02 ,  F16K31/50 ,  F16K31/122

CPC classification number: F16K31/1225 ,  F16K7/16 ,  F16K7/17 ,  F16K31/508

Abstract: A fluid controller includes an automatic opening-and-closing device configured to move a valve rod upward and downward, and a manual opening-and-closing device configured to move the valve rod upward and downward by a manual operation. The manual opening-and-closing device includes a cylindrical handle supported by a casing so as to be rotatable and not to move upward and downward, and a cylindrical operating member screwed into a female screw of the handle and configured to move upward and downward with a rotation of the handle. The operating member is apart from a piston of the automatic opening-and-closing device in a vertical direction in an automatic operation. The piston is moved by the operating member which moves upward in association with the rotating operation of the handle in a manual operation in an opposite direction from the opening state brought by the automatic opening-and-closing device.

Abstract translation: 流体控制器包括被配置为向上和向下移动阀杆的自动开闭装置，以及手动开闭装置，其被配置为通过手动操作来向上和向下移动阀杆。 手动打开和关闭装置包括由壳体支撑以便可旋转并且不向上和向下移动的圆柱形手柄，以及螺旋到手柄的内螺纹中的圆柱形操作构件，并被构造成上下移动， 手柄的旋转。 操作构件在自动操作中在垂直方向上与自动打开和关闭装置的活塞分开。 活塞通过与手柄的旋转操作相对应地向上移动的操作构件在与自动开关装置所带来的打开状态相反的方向上进行手动操作。

公开(公告)号：US20150323092A1

公开(公告)日：2015-11-12

申请号：US14409139

申请日：2013-06-26

Applicant: FUJIKIN INCORPORATED

Inventor： Tadayuki Yakushijin ,  Michio Yamaji ,  Tsuyoshi Tanikawa ,  Keisuke Ishibashi ,  Shinichiro Sasaki

IPC: F16K31/122 ,  F16K21/04

CPC classification number: F16K31/1221 ,  F15B15/02 ,  F15B15/1476 ,  F16K21/04 ,  F16K27/0236 ,  F16K31/1225 ,  Y10T137/7754

Abstract: There is provided a fluid controller actuator which does not require a plurality of bolts for fixing an inner side spring presser to a casing, in which a configuration is simple and assembly does not take time and effort, and further, in which a biasing force of an biasing member can be adjusted from the outside after the assembly. An inner side spring presser (15) includes a shaft portion (22) and a cylinder portion (23) provided at a lower edge portion of the shaft portion (22), and presses an upper side peripheral edge portion of a through hole (12a) of a biasing member (12) by a lower end of the cylinder portion (23). The shaft portion (22) penetrates an outer side spring presser (16) and extends upwardly. An adjustment screw (19) which positions the inner side spring presser (15) as a lower end abuts against an upper surface of the shaft portion (22) of the inner side spring presser (15), is screwed to a top wall (11d) of a casing (11).

Abstract translation: 提供了一种流体控制器致动器，其不需要用于将内侧弹簧压紧件固定到壳体的多个螺栓，其中构造简单并且组装不花费时间和精力，并且其中， 在组装之后可以从外部调整偏置构件。 内侧弹簧压脚（15）包括轴部（22）和设置在轴部（22）的下边缘部分处的气缸部（23），并且将通孔（12a）的上侧周缘部 ）由所述气缸部分（23）的下端构成的偏压构件（12）。 轴部分（22）穿过外侧弹簧压脚（16）并向上延伸。 将位于内侧弹簧压脚（15）的轴部（22）的上表面的下端的内侧弹簧压脚（15）定位的调节螺钉（19）旋入到顶壁（11d） ）的壳体（11）。

公开(公告)号：US20240229940A1

公开(公告)日：2024-07-11

申请号：US18561487

申请日：2022-05-24

Applicant: FUJIKIN INCORPORATED

Inventor： Keisuke Ishibashi ,  Akihiro Harada ,  Tadayuki Yakushijin ,  Yusei Horikawa ,  Souta Hachiman ,  Toshiyuki Inada ,  Ryo Sugimura

IPC: F16K7/16 ,  F16K7/17 ,  F16K31/143

CPC classification number: F16K7/16 ,  F16K7/17 ,  F16K31/143

Abstract: The invention provides a valve capable of suppressing unintended valve opening/closing by providing a play state during a manual operation and also enabling smooth transition from the play state to a rotation state. In the valve, a tip of another end portion of the stem and the engagement hole of an operation handle form a corresponding circumferential surface and a planar section continuous to the circumferential surface. Either one of the tip of the other end portion of the stem and the planar section of the engagement hole of the operation handle is formed to have two flat surfaces defining a predetermined angle, and thereby generates predetermined play when the operation handle is rotated in one direction after being rotated in another direction.

公开(公告)号：US11035494B2

公开(公告)日：2021-06-15

申请号：US16495931

申请日：2018-06-21

Applicant: FUJIKIN INCORPORATED

Inventor： Takashi Funakoshi ,  Yoshinori Shimomura ,  Tsuyoshi Tanikawa ,  Tadayuki Yakushijin

IPC: F16K37/00 ,  F16K43/00

Abstract: Provided is a flow rate control apparatus capable of being used continuously when the apparatus is used in equipment that operates continuously, and a flow rate control method for the flow rate control apparatus. A flow rate of a fluid is controlled via any one of control valves disposed in branch passages, respectively. When replacement of the one control valve is determined to be necessary on the basis of a signal outputted from a monitoring portion of the one control valve, the one control valve performing flow rate control is closed, and another control valve disposed in another one of the branch passages, is opened, to perform flow rate control with a flow rate equivalent to that before the replacement. Furthermore, on-off valves disposed at upstream and downstream sides of the closed control valve are closed.

公开(公告)号：US20210018103A1

公开(公告)日：2021-01-21

申请号：US17043025

申请日：2019-09-17

Applicant: FUJIKIN INCORPORATED

Inventor： Tadayuki Yakushijin ,  Keisuke Ishibashi ,  Michio Yamaji ,  Akihiro Harada

IPC: F16K7/16 ,  F16K7/17

Abstract: A diaphragm valve configured to allow for adjustment of a Cv value during assembly of the diaphragm valve is provided. A valve body, a diaphragm, an actuator, a bonnet, a stem, and a diaphragm holder are provided, the bonnet includes a through hole coaxial with the stem and formed with a female thread, the cylindrical body formed with a male thread on an outer surface is screwed into the through hole in engagement with the female thread, the stem is inserted into the cylindrical body, a diaphragm side end surface of the cylindrical body protrudes from an opening surface of the through hole on the diaphragm side toward a diaphragm, a stem side end surface of the diaphragm holder comes into abutment with the diaphragm side end surface of the cylindrical body, so that a position of the abutted surfaces in an axial direction of the stem is adjusted by a degree of adjustment between the male thread and the female thread.