Toto Ltd.

Noboru Shinbara

Osamu Tsutsui

Shinji Shibata

Atsuo Makita

Hirofumi Takeuchi

Makoto Hatakeyama

Ryosuke Hayashi

Takashi Yoshioka

Hideki Kawaguchi

Yoshiki Ohta

Ryouichi Tsukada

Yoshinori Nakamura

Katsuichi Irifune

Takayuki Ootani

Takeshi Uemura

Nobuichiro Ohsato

Method for designing a multiblade radial fan and a multiblade radial fan

Multiblade radial fan and method for making same

A flush toilet stool includes a toilet bowl and a trap drainage passage connected to the toilet bowl. The toilet bowl has a water jet hole defined in a bottom region thereof and opening toward the trap drainage passage. A pressurizing unit such as a water pump is coupled to the water jet hole for drawing water under lower pressure directly from an external water supply and expelling the water under higher pressure through the water jet hole toward the trap drainage passage to develop a siphon flow to discharge sewage from the toilet bowl through the trap drainage passage.

Siphon-jet flush water supply system for toilet stool

A water closet flushing apparatus provided with a pressure detector mounted along a water supply pipe, an opening and closing apparatus to open and close a water supply passage provided along the water supply pipe and a control apparatus that uses the pressure detected by the pressure detector to control the opening and closing operation of the opening and closing apparatus so that a predetermined amount of water is supplied to the water closet.

Water closet flushing apparatus

In a water closet flushing apparatus of the type in which the flushing water from a flushing water supply source is fed through different flushing water feed lines to a bowl portion and a trap discharge passage defined adjacent to the bottom portion of the bowl portion, a water jet injector is provided so as to inject the flushing water jet toward the trap discharge passage, an opening-closing valve is disposed in each of different feed lines, and the operation of the opening-closing valve is controlled by a control unit. The flushing water is flushed into the bowl portion so as to clean the same while the jet of flushing water is injected into the trap discharge passage to cause the same to act as a siphon, whereby waste matter is discharged.

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Chigasaki, Japan

Noboru Shinbara