Toto Ltd.

Satoshi Takano

Eiji Shiohara

Tomoyasu Ichiki

Takahiro Hino

Shinichi Yagi

Hideyuki Nakatsu

Yuki Kubota

Mitoki Higashi

Shu Kashirajima

Masaaki Momoe

Masaki Mori

Kenji Watanabe

Hiroki Tanaka

Yoshikatsu Adachi

Yuki Hayashi

Hideaki Kashimura

Koichi Motooka

A flush toilet apparatus includes a toilet body that includes a rim water spout port, a tank that stores washing water, a rim side water supply channel that supplies washing water to the rim water spout port, a tank side water supply channel that supplies washing water to the tank, a flow channel switching part that adjusts an amount of washing water that is supplied to one or both of the rim side water supply channel and the tank side water supply channel, and an electrical power failure detection part that detects electrical power failure, wherein, in a case where electrical power failure is caused when washing water is supplied to the tank side water supply channel, the flow channel switching part decreases washing water that is supplied to the tank side water supply channel and increases washing water that is supplied to the rim side water supply channel.

Flush toilet apparatus

A flush toilet includes a first rim spout port provided in a rim on one side in a left-right direction of a bowl and a second rim spout port provided in the rim on the other side in the left-right direction of the bowl. The first rim spout port is disposed further in the front than the front end of a well portion. The second rim spout port causes the second rim spout to traverse a swirling direction of a swirling flow of the first rim spout and guide the flush water interfering with the swirling flow of the first rim spout to a rear region of the bowl further on the rear side than the well portion.

Flush toilet

The water conduit has: a first water-guiding portion extending from a water supply portion, where the flush water is supplied to the water conduit, to a first spout port located on one of right and left sides of the bowl portion; and a second water-guiding portion extending from the water supply portion to a second spout port located on the other side. The water supply portion is located at a position on the one side. The flush water is supplied to the water supply portion in a direction from the water supply portion toward the first water-guiding portion. A collision wall is provided on a way of the first water-guiding portion such that at least a part of the supplied flush water collides with the collision wall. The at least part of the flush water having collided with the collision wall is supplied to the second water-guiding portion.

A water passage in a front region of a bowl of a toilet includes an upstream side water passage and a downstream side water passage formed on the upstream side and on the downstream side, respectively, of a front end of the bowl surface. The curvature radius of the downstream side water passage in a plan view is set to be smaller than the curvature radius of the upstream side water passage in a plan view. The water passage in the front region of the bowl has a flow path vertical cross-section that is taken in the vertical direction and is formed between a shelf surface and an overhanging part. The cross-sectional area of the flow path vertical cross-section taken in the vertical direction is set to be the smallest in a front end of the water passage.

Disclosed is a sanitary ware having a photocatalyst layer which has excellent durability even in an environment where the photocatalyst layer is exposed to an acid and an alkali alternately. The sanitary ware comprises a glaze layer, an intermediate layer provided on the glaze layer, and a photocatalyst layer provided on the intermediate layer, wherein the photocatalyst layer comprises titanium oxide in the amount of 95 mass % to 75 mass % and zirconium oxide in the amount of 5 mass % to 25 mass % and the intermediate layer comprises silica in the amount of 98 mass % to 85 mass %, and titanium oxide and/or zirconium oxide in the amount of 2 mass % to 15 mass %.

Sanitary ware having photocatalyst layer

Disclosed is a photocatalyst member including a glaze layer and a photocatalyst layer provided on the glaze layer, the photocatalyst layer is good in layer strength, water resistance, or abrasion resistance. More specifically, the photocatalyst member includes a base having a glaze layer and a photocatalyst layer that is provided on the glaze layer and contains titanium oxide and zirconium titanate, wherein the content of zirconium titanate in the photocatalyst layer is 15 to 75% by mass based on the total content of titanium oxide and zirconium titanate, and the content of zirconium titanate in an area from around an interface between the photocatalyst layer and the base to an median line in the thickness of the photocatalyst layer is larger than the content of zirconium titanate in an area near the external surface of the photocatalyst layer.

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Kitakyushu, Japan

Satoshi Takano