Fujikin Inc.

Daihen Corporation

Itoki Corporation

Panasonic Corporation

Hiroyuki Ito

Nobukazu Ikeda

Kouji Nishino

Masaaki Nagase

Yuichiro Sasaki

Kaoru Hirata

Katsuyuki Sugita

Kohei Wada

Katsumi Okashita

Shinya Ogawa

Keisuke Ideguchi

Hiroyuki Kotani

Hirotaka Takei

Tatsuya Ikenari

Yoshiki Fukumoto

Shunsuke Kondo

Masashi Hasegawa

Seitaro Komoto

The flow rate control deviceincludes a control valve, a restriction partprovided downstream of the control valve, an upstream pressure sensorfor measuring a pressure Pbetween the control valveand the restriction part, a differential pressure sensorfor measuring a differential pressure ΔP between the upstream and the downstream of the restriction part, and an arithmetic control circuitconnected to the control valve, the upstream pressure sensor, and the differential pressure sensor

Flow rate control device

A rocking chair includes a seat, a backrest that is tiltable rearward, a locking spring portion that imparts resistance to the rearward tilting of the backrest, and a resilience adjustment member that changes the degree of resistance of the spring portion to the rearward tilting of the backrest. The resilience adjustment member is a cam that is rotationally operable by a person seated on a seat and the position in which rocking load due to the rearward tilting of the backrest is applied to the spring portion is changed by the cam, so that moment applied to the spring portion changes and the degree of resistance of the spring portion is adjusted.

Rocking chair and spring unit used therein

The invention relates to a HF power supply device including an oscillator () outputting a HF signal, an amplifier () amplifying the output of the oscillator for supplying a HF output to a load, and a DC power supply () to supply a DC power voltage to the amplifier (). The power supply device further includes a loss calculator () calculating a loss in the amplifier (), a first controller () controlling the output of the power supply () and a second controller () controlling the output of the oscillator () or amplifier (). When the calculated loss by the calculator () exceeds a predetermined loss set value, the first controller () lowers the output power voltage of the power supply () to make the calculated loss equal to the loss set value. When the calculated loss is no greater than the loss set value, the first controller () maintains the output power voltage at an appropriate DC voltage set value, while the second controller () controls the output of the oscillator () or amplifier () so that the HF output to the load from the amplifier () approaches a HF output set value.

High-frequency power supply device

Growing community of inventors

Osaka, Japan

Hiroyuki Ito