Iwatani
Corporate brand
UnclaimedJapanese company founded in 1930 that supplies LP gas, hydrogen, industrial gases, machinery, and materials, and offers cassette gas products and home appliances.
Last updated September 15, 2026
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Overview
Iwatani is a Japanese company whose history dates to 1930, when founder Naiji Iwatani established Iwatani Naiji Shoten in Osaka, dealing in oxygen, welding rods, and carbide. Its engagement with hydrogen began in 1941, when it began selling hydrogen gas that had been generated as a byproduct of industrial production. The company's business fields include integrated energy (LP gas and LNG), industrial gases (oxygen, nitrogen, argon, hydrogen, helium and related equipment), machinery (welding robots, FA systems, electronic component manufacturing equipment, pharmaceutical manufacturing equipment, environmental equipment), and materials (functional resins, metals, mineral resources, electronic materials, biomass fuel, low-environmental-impact PET resin, and secondary battery materials). It also offers cassette gas-related products and cooking appliances to individual customers.
History
Iwatani's history dates to 1930, when founder Naiji Iwatani established Iwatani Naiji Shoten in Osaka, dealing in oxygen, welding rods, and carbide. The company's connection with hydrogen began in 1941, when it focused on hydrogen gas that was generated during industrial production and released into the air, and began selling it. The company's business fields include integrated energy (LP gas and LNG), industrial gases (oxygen, nitrogen, argon, hydrogen, helium and related equipment), machinery (welding robots, FA systems, electronic component manufacturing equipment, pharmaceutical manufacturing equipment, environmental equipment), and materials (functional resins, metals, mineral resources, electronic materials, biomass fuel, low-environmental-impact PET resin, secondary battery materials). It also offers cassette gas-related products and cooking appliances to individual customers.
Products and positioning
LP gas
Clean-energy LP gas and LNG contributing to energy saving, CO2 reduction, and cost saving for stores, commercial facilities, and factories.
Industrial gases
A range of industrial gases such as oxygen, nitrogen, argon, hydrogen, and helium, along with gas-related equipment and applications.
Machinery
Industrial machinery including welding robots, FA systems, electronic component manufacturing equipment, pharmaceutical manufacturing equipment, and environmental equipment.
Materials
Functional resins, metals, mineral resources, and electronic materials from raw materials to products, as well as development and deployment of biomass fuel, low-environmental-impact PET resin, and secondary battery materials.
Cassette gas-related products
Cassette gas-related products offered to individual customers.
Cooking appliances
Cooking appliances offered to individual customers.
Recent events
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