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