Casio History: From a Finger-Ring Pipe to Calculators, Watches and Compact Electronics

Casio’s history begins in post-war Japan with a product that had nothing to do with watches or calculators. Tadao Kashio established Kashio Seisakujo in Mitaka, Tokyo, in 1946, initially doing subcontract manufacturing. One of the young business’s early successes was the Yubiwa finger-ring pipe, designed so a cigarette could be smoked down to the nub while leaving the user’s hands free. Profits from that product helped fund the brothers’ later calculator work.

The Kashio brothers became interested in calculation after seeing electric calculators at a business show. Rather than copy the motor-driven machines already on the market, they developed an all-electric design based on relays. In 1957 the 14-A went on sale, which Casio describes as the world’s first compact all-electric calculator. Casio Computer Co., Ltd. was established that same year.

From a Finger-Ring Pipe to Calculators, Watches and Compact Electronics

The 14-A changed the business because it gave Casio a scalable electronic identity. Later calculators moved from relays to transistors and integrated circuits, shrinking dramatically while adding memory and programmability. The company also pushed into watches, where electronic timing, low-power circuits and compact displays provided a natural extension of those skills.

Products such as digital watches and eventually G-SHOCK made Casio a consumer brand far beyond office calculation. The technical emphasis shifted from arithmetic to timekeeping, sensors and rugged product design, but miniaturised electronics remained common ground. Musical instruments and other devices added further applications.

Casio today

Casio remains a diversified electronics company spanning watches, calculators, musical instruments and specialised products, with compact low-power electronics connecting many of those categories.

Casio’s origin is valuable precisely because it is not neat. The Yubiwa pipe shows an inventive small manufacturer searching for viable products; the 14-A shows the moment electronics provided a durable direction. Modern watches and calculators make more sense when seen as descendants of that move toward compact, reliable electronic devices rather than as unrelated categories accumulated by a conglomerate.