Fujikin Inc.

Tomoki Nakada

Tsutomu Shinohara

Tomohiro Nakata

Kazunari Watanabe

Akihiro Harada

Ryutaro Tanno

Yuya Suzuki

Toshiyuki Inada

Kenta Kondo

Kengo Tsujino

A diaphragm includes: a metal thin plate; and a thin film layer formed over an entirety of a surface on one side of the thin plate.

Diaphragm, valve device, and method for manufacturing diaphragm

A valve which can accurately detect an operation of the valve is provided. The valve includes a valve body defining a fluid flow passage, a valve disk operating to be able to open and close the fluid flow passage, an actuator driving the valve disk by supplying or interrupting a working fluid, a stem transmitting a driving force of the actuator to the valve disk, a detection means detecting an opening and closing operation of the valve disk, and an elastic member fixing a ring-shaped magnetic body inserted through an end of the stem to the stem. The detection means includes the magnetic body fixed by the elastic member, and a magnetic sensor detecting a change in a magnetic field of the magnetic body.

Valve and fluid control device with a magnetic indicator

Growing community of inventors

Osaka, Japan

Tomoki Nakada