Tokyogasgroup csr report

Constructing a Robust Energy Platform

Enriching Daily Life

Tokyo Gas Group’s Contribution to Enriching Daily Life

Since its founding in 1885, Tokyo Gas has been providing gas-powered appliances that are deeply woven into daily life. Major examples include rice cookers which make housework easier, heating equipment that generates warmth in winter, and water heaters for providing hot water at any time. Over the past 130 years, we have sought to maintain a close relationship with everyday life and continue advancing our R&D so customers can enjoy comfortable, fulfilling lives.

Cooking Appliances that Revolutionized the Kitchen

Until the late 19th century, cooking rice required bending down to tend a fire, which was burdensome for housewives. The task was made easier with gas cooking stoves, which we began selling in 1902. Gas use made standing while cooking rice possible, and oven and indoor spaces were cleaner without soot. The automatic gas rice cooker, developed in 1957, further reduced the workload by automatically extinguishing the fire when the rice was ready. Since then, we have continued to develop rice cookers that are easier to use and even more convenient.
The gas kitchen stove was another appliance that made cooking easier. In 1920, we commercialized the tabletop stove at a more reasonable price than that of the imported variety which had become popular among the upper class around the turn of that century. We also sought to provide greater convenience by attaching a base to the product along with other improvements to its shape in order to better accommodate Japanese kitchen utensils. In 1956, we introduced the automatic ignition gas cooking stove, which did not require a match to light, and in 1977 we began selling a gas table that incorporated electronic technology to prevent gas leaks by automatically shutting off gas supply when a fire is inadvertently extinguished. Throughout its history, Tokyo Gas has endeavored to develop safe and secure products to support Japanese eating habits.

History of the Rice Cooker

1902 1957

Gas cooking stove

Gas cooking stove

Automatic gas rice cooker

Automatic gas rice cooker

History of the Gas Kitchen Stove

1920 1956 1977

Tabletop gas stove

Tabletop gas stove

Automatic ignition gas cooking stove

Automatic ignition gas cooking stove

Gas table with automatic safety shut-off feature


Gas table with automatic safety shut-off feature

Gas Heaters that Bring Warmth to Cold Winters

The gas stove, developed in 1927, became a popular appliance to counter the winter cold in the 1930s. Based on a British model imported around the turn of the 20th century, adaptations to the design were made to better fit with the Japanese lifestyle and bring warmth to daily life. Following the forced draft balanced flue-type gas heater developed in 1971, we adopted a warm-air heating method in addition to conventional direct-fire heating for significantly improved safety. With the gas fan heater commercialized in 1980, we increased the product’s power while reducing its size. Since then, we have continued to develop products that excel in comfort and safety and are environmentally sound, by adding safety devices and energy-saving features.
The use of gas hydronic underfloor heating is increasing. In underfloor heating, a gas water heater boils water that is circulated through underfloor pipes to heat a room. The unit has become especially popular in homes with children who suffer from allergies and those of the elderly, as it does not produce dust and so the air stays clean.

History of Gas Heaters

1927 1971 1980 1988

Gas stove made in Japan

Gas stove made in Japan

Forced draught balanced fuel-type gas heater

Forced draft balanced flue-type gas heater

Gas fan heater

Gas fan heater

Underfloor heating

Underfloor heating

Gas Bath Heaters for More Comfortable Living

Being able to take a hot bath at any time by burning gas has brought greater comfort and convenience to everyday life. In 1965, we began providing the balanced-type bath boiler, in which the boiler is installed next to the bath tub. The product prevented incomplete combustion inside the bathroom by using outside air for combustion and externally discharging the exhaust, thereby improving the security and safety of taking a bath. In 1976, we developed the outdoor installation bath heater, in which the boiler is separated from the bath tub and installed outdoors. This removed concerns related to air supply and exhaust and freed up bathroom space.
We have continued to focus on developing products that contribute to enriching daily life, such as the fully-automated bath heater, and have also recently commercialized environmentally sound products. One such product is the Eco-JOES water heater, equipped with a latent heat recovery system, which we began selling in 2001 as a model that significantly contributes to reducing energy consumption and CO2 emissions.

History of Water Heaters

1965 2001

Balanced-type bath boiler

Balanced-type bath boiler

Highly efficient water heater equipped with a latent heat recovery system (Eco-JOES)

Highly efficient water heater equipped with a latent heat recovery system (Eco-JOES)
DFF Inc., Corporate Social Responsibility Sect, General Administration Dept., Corporate Planning Dept., Resources & Global Business Division, Energy Solution Div, Power Buisiness Dept., Pipeline Network Division, IT Division, Residential Sales Div., Fundamental Technology Dept., Energy Solution Div, Environmental Affairs Dept., Purchasing Dept. , Health Insurance & Employees' Welfare Sect., Personnel Dept., Internal Audit Dept., Audit & Supervisory Board Member's Office, Compliance Dept., Regional Development Div., Finance Dept, TGES, TOKYO GAS COMMUNICATIONS, INC.