In response to the revised Consumer Product Safety Act, which came into force in May 2007, we drew up the Voluntary Action Plan of Tokyo Gas Concerning Product Safety as a company that repairs, installs and sells residential gas appliances, with the intention of ensuring product safety and fostering a culture of product safety. Under the plan, we strive to ensure and improve safety to meet social demands and expectations. Moreover, in our drive to promote a culture of gas appliance safety, we post important notices on the use of residential gas appliances on our website to enable customers to find accurate information quickly on the correct use of our products as well as recalls and reported problems.
The entire Tokyo Gas Group is committed to acting quickly and effectively in order to ensure safety and improve the quality of gas appliances under our three pillars of safety, security, and reliability.
We shall comply with laws and regulations concerning product safety, formulate in-house voluntary standards for repair and installation work, and strive to ensure product safety.
We shall improve our company’s product safety promotion system to ensure product safety.
We shall contribute to reducing the risk of product-related accidents by sending feedback on product-related accidents and problems that come to our attention to the manufacturers and importers of gas appliances.
Whenever we learn of a product-related accident we will promptly forward the information to senior management and related departments in the company, as well as to manufacturers and import companies.
We shall promote awareness and disseminate information to our customers on the proper use of gas products, follow-up on questions from customers on product safety and commit to the cultivation of a culture of product safety.
Whenever manufacturers or importers recover products due to recalls or other reasons, we shall cooperate with them to efficiently facilitate product recovery.
Measures to Improve the Quality of Gas AppliancesWe address gas appliance failures or accidents at a section dedicated to quality in order to quickly identify the causes and determine effective responses. A new section was created in April 2011 to strengthen these efforts.
All Kitchen Stove Burners Fitted with SensorsTo improve the safety of gas kitchen stoves, the gas industry, including gas suppliers and gas appliance manufacturers and sellers, enforced self-regulating standards that require the installation of safety devices on all burners of residential gas kitchen stoves manufactured in April 2008 and later, except single-burner tabletop stoves. Every applicable burner must be fitted with sensors to prevent overheating of cooking oil and to detect flame failure and device to shut off after certain amount of time.
Development of More Advanced Alarms
Development of a Residential Ultrasonic Gas Meter and Wide-area Wireless Communications DeviceResidential gas meters that measure customer gas consumption and monitor gas usage are called microcontroller meters*2. We jointly develop ultrasonic gas meters with Osaka Gas Co., Ltd., Toho Gas Co., Ltd. and appliance makers. These meters use ultrasonic sensors to measure gas flow and are utilized as microcontroller meters primarily for household use. Since ultrasonic gas meters have a simple structure with no mechanical moving parts, they are much lighter than conventional diaphragm gas meters, or about one-third the volume and half the weight, while performing the same functions. Therefore, they have a better appearance and offer users more leeway in deciding where to locate them.
Development of a Multi-hop Relay DeviceAlong with Osaka Gas Co., Ltd., Toho Gas Co., Ltd. and appliance makers, we are jointly developing a multi-hop relay device for connecting residential gas meter readings and other data via multiple gas meters. The device applies intermittent rather than continuous transmission, sending and receiving signals every five seconds to save power consumption, and operating for 10 years despite being battery-powered. Current wireless devices allow transmission only within an area that can be served by radio waves and are only usable in buildings of up to five stories, within the reach of radio waves transmitted by ground-based meter checkers. They also require long transmission times. The new device, capable of multi-hop relays, allows wirelessly checking meters in commercial buildings and condominiums six or more stories high.
|Air supply and exhaust method||Target appliances||Number of units targeted for replacement at campaign start||Number of units at end of FY2017|
|Open-type gas appliances||Small water heaters||37,000||2,395|
|Wire mesh stoves||4,200||448|
|Semi-closed-type gas appliances||Conventional flue-type water heaters and bath boilers /
forced exhaust-type water heaters (with downdraft diverters)
|Fiscal Year||Alarms Installed|
|2006||No data available|