Nittan Company Limited

Yoshinori Shinohara

Takashi Suzuki

Mitsuo Hasegawa

Akira Yokota

A smoke detector having a housing including openings for admission of smoke, a smoke detecting chamber within said housing with the wall of said chamber formed of spaced overlapping elements which form a serpentine path therebetween, means on one side of said chamber for emitting light into said chamber, a light detector adjoining and shielded from said light source and a conical reflector in said chamber and on a side opposite said light source and detector.

Growing community of inventors

Tama, Japan

Yoshinori Shinohara