Toto Ltd.

Shingo Tanaka

Osamu Tsutsui

Keiji Hayashi

Hiroshi Kobayashi

Atsuo Makita

Hideki Kawaguchi

Masahiro Kayano

Hisashi Nakamura

Shinji Shibata

Hirofumi Takeuchi

Hiroshi Tsuboi

Yukihiro Muroya

Hidetaka Miyahara

Takeshi Takaki

Kiyoshi Fujino

Takenori Fukushima

Yumiko Kataoka

Toilet bowl

A multiple purpose instantaneous gas water heater comprises a combination of a larger combustion capacity type first burner with a smaller combustion capacity type second burner. Each of the burners can be controlled by a proportional combustion control method and/or an intermittent combustion control method. It is possible to combine these functions within a microcomputer system so as to use each or both burners selectively, or both together, so that it is possible to select water from a wide range of hot water temperatures or to select a target temperature.

Multiple-purpose instantaneous gas water heater

This invention relates to a cold/hot water discharging apparatus which is used for cold/hot water massage shower, and the like. In order to alternately switch and supply hot water of a predetermined temperature supplied from a hot water source to a discharge portion, a valve of a cold/hot water mixing tap is driven by a motor and is reciprocated in a pre-set period between a position where high temperature hot water is discharged and low temperature hot water is discharged. In each of the periods for discharging low/high temperature hot water, an optimum gain of this period is determined from the previous period and previous gain so as to shorten the discharge period of cold/hot water and to obtain a stable curve of the discharge hot water.

Cold/hot water discharging apparatus

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Kitakyushu, Japan

Shingo Tanaka