Since 1921, Hario company has been dedicated to the design, production, and sale of heatproof glass since it was founded in 1921 and is the only heatproof glass manufacturer in Japan to have a factory.
They began their history as a manufacturer of laboratory glassware. In 1964, they expanded their production to household items, starting with the coffee syphon. They also began producing lenses for automotive headlights in 1980. Today, they continue to make a variety of items, from microwave-safe kitchenware and coffee and tea implements, to aromatherapy and pet products.