公开(公告)号：US12031312B2

公开(公告)日：2024-07-09

申请号：US17214225

申请日：2021-03-26

Applicant: TOTO LTD.

Inventor： Naoki Koga ,  Satoru Kitazaki ,  Hiroyuki Kameshige ,  Yuki Okayasu ,  Tomofumi Ano

IPC: C03C8/02 ,  E03D11/02 ,  E03D11/13 ,  E03D13/00

CPC classification number: E03D11/13 ,  C03C8/02 ,  E03D11/02 ,  E03D13/00

Abstract: Disclosed is a sanitary ware compatibly satisfying both low water absorption and weight reduction. The sanitary ware has a pottery substrate of a vitreous body and a glaze layer, in which part of the substrate is exposed to outside thereof without the glaze layer; the substrate has (A) an anorthite and (B) an alkali metal component; and an amount of the alkali metal component is in the range of 5 to 10% by weight in terms of an oxide conversion (A2O) relative to the substrate. This sanitary ware has the properties of low water absorption and light weight.