In 1967, Japan’s first domestic shower toilet, the Sanitarina 61, marked the beginning of a profound transformation in personal hygiene and home comfort. Originally developed by Ina Seito, one of LIXIL’s core heritage companies, this pioneering innovation initiated a fundamental shift from traditional flush toilets to advanced, health-focused sanitary engineering.
Since then, decades of continuous refinement, customer testing, and human-centric design have helped popularize shower toilet technology globally, establishing it as an essential feature of modern living.
Recognizing its lasting impact on society and technology, the Institute of Electrical and Electronics Engineers has officially honored LIXIL’s shower toilet technology with the prestigious IEEE Milestone. Celebrated alongside key industry pioneers, this achievement underscores LIXIL’s relentless commitment to innovation—from perfecting dual-nozzle designs for dedicated hygiene to incorporating ambient music and odor elimination.
Watch the video below to hear about how Japan’s core technology evolved to inspire comfort and wellness worldwide.
