Nippon Seiki Co., Ltd.

Toshio Hayakawa

Koichi Sato

Yoshiyuki Shimazaki

Kiyoshi Enomoto

Tetsuya Sato

Tadao Nakagawa

A liquid level detecting apparatus resistant to the deterioration and corrosion thereof is provided while holding down an increase in the manufacturing cost thereof. This apparatushas fixed electrodeson which a sliding contact pointis slidingly moved in accordance with a fluctuation of a float, and a first resistorconnected to the fixed electrodes, the fixed electrodesbeing made of at least silver (Ag), palladium (Pd) and a glass component, a weight ratio of the silver (Ag) to palladium (Pd) being not lower than 75 wt. % to not higher than 25 wt. %, a sliding portionof the fixed electrodeson which the sliding contact pointis slidingly moved being covered with second resistorsa resistance value of which is lower than that of the first resistor

Growing community of inventors

Niigata, Japan

Toshio Hayakawa