The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 30, 2025

Filed:

Aug. 09, 2023
Applicant:

Toto Ltd., Kitakyushu, JP;

Inventors:

Jing Chen, Fukuoka, JP;

Hiroshi Hashimoto, Fukuoka, JP;

Satoshi Yamazaki, Fukuoka, JP;

Kenichi Takano, Fukuoka, JP;

Assignee:

TOTO LTD., Kitakyushu, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E03D 11/08 (2006.01); E03D 11/13 (2006.01);
U.S. Cl.
CPC ...
E03D 11/08 (2013.01); E03D 11/13 (2013.01); E03D 2201/40 (2013.01);
Abstract

A flush toilet includes a bowl part that includes a waste-receiving surface with a bowl shape that receives waste and a rim part that extends upward on an upper edge part of the waste-receiving surface, a first water-spouting port that spouts a washing water toward the rim part to form a first flow of a washing water that swirls on the waste-receiving surface, a second water-spouting port that spouts a washing water toward the rim part to form a second flow of a washing water that joins the first flow, and a connection part that includes a concave surface that connects the waste-receiving surface and the rim part and is curved to have a curvature that decreases from an upstream side to a downstream side of the first flow just before the first water-spouting port or the second water-spouting port in a flow direction of the first flow.


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