Kabushiki Kaisha Toshiba

Tokico, Ltd.

Tokyo Metropolitan

Kyb Corporation

Kayaba Industry Company, Ltd.

Tsutomu Suzuki

Jun Aoki

Tetuo Kato

Hiroaki Wakabayashi

Seiji Yamaguchi

Takeshi Yamaura

Takatsugu Ogata

Ikuo Arai

Seiji Toda

A densitometer using a microwave comprises a microwave detection section, a phase detection section, and a density calculation section. The microwave detection section picks up a first microwave receiving signal by transmitting and receiving a microwave of a frequency band of 1.4 --GHz-- to 1.75 --GHz-- to/from a reference fluid, and a second microwave receiving signal by transmitting and receiving a microwave of a frequency band of 1.4 --GHz-- to 1.75 --GHz-- to/from a measuring fluid. The phase detection section obtains a phase difference between the first microwave receiving signal and the second microwave receiving signal. The density calculation section calculates the density of measuring fluid based on the phase difference obtained by the phase detection section.

Densitometer using a microwave

A hydraulic damper has a valve mechanism adapted to generate a damping force during extension and contraction strokes of the damper. The valve mechanism includes a disc valve assembly consisting of a main disc valve for generating a damping force and an orifice for generating a damping force in low operation speed region of the damper. The orifce is provided with an additional disc valve for controlling the damping force generated.

Hydraulic damper

Growing community of inventors

Tokyo, Japan

Tsutomu Suzuki