We continue to take on challenges based on the elucidated principles and new knowledge created through our daily basic research.


Our unique product design and production technologies are expanding into new products.

Starting from wall clocks, HAYAMIZU's spiral springs have developed into the fields of automobile, home appliances, industrial equipment and medical, thanks to our experience as a global company and our technical expertise such as in weight reduction technology, high strength technology and analysis capability among other.

List of frequently asked questions about spiral springs

Introduction of design methods for spiral springs, constant force springs, etc.