Toto Ltd.

Saori Sonokawa

Hiromasa Tokudome

Koji Okubo

Hiroyuki Fujii

Kyoko Kataoka

A self-cleaning member comprising a member having a porous surface is disclosed. The member has a contact angle hysteresis &#x394;&#x3b8; (=&#x3b8;a&#x2212;&#x3b8;r), which is a difference between an advancing contact angle &#x3b8;a and a receding contact angle &#x3b8;r measured by a dynamic contact angle measurement with an extension/contraction method, of 80 degree or more at the surface layer and a receding contact angle &#x3b8;r of 25 degree or less, is capable of forming a water film on the surface by water provided and of allowing an ionic or reactive contaminant to be washed away without fixation.

Growing community of inventors

Chigasaki, Japan

Saori Sonokawa