Our Philosophy and Culture

Our Philosophy

YKK was founded by Tadao Yoshida in Tokyo in 1934. He firmly believed that business belongs to society and survives through coexistence. When the benefits are shared, the value of the company’s existence will be recognized. He further believed that using ingenuity and inventiveness in business activities and constantly creating new value would lead to the success of clients and business partners and make it possible to contribute to society.

He called this the “Cycle of Goodness.” This idea — that “no one prospers without rendering benefit to others”— remains the guiding principle of the YKK Group today.

Our Management Principle

When Tadahiro Yoshida became president of YKK in 1993, he expanded upon the CYCLE OF GOODNESS® in a way that would resonate in an increasingly globalized society. Building on YKK’s fundamental concept of creating value, he adopted “YKK seeks corporate value of higher significance” as the YKK Management Principle.

The CYCLE OF GOODNESS® and the Management Principle complement each other – while the CYCLE OF GOODNESS® asks us to create value and share the benefits, the Management Principle gives us a clear set of rules on how to do so. By continually striving for innovation in our products, technology, and the management of our company, we can deliver value to our customers, employees and society.

Fairness is the anchor between those with whom we share benefits and our way of delivering those benefits. We use “fairness” in a broader sense – one that goes beyond simply abiding by the law. “Fairness” at YKK means cultivating the knowledge and wisdom within our company to make just decisions in every community around the world where we do business.

Our Core Values


We do not believe in setting low targets just so everyone can achieve them. Instead, we see value in striving to achieve high goals. It is important to seek ambitious goals, to be unafraid of making mistakes on the way up, and stick to the job to the very end. That’s where the saying “Do not fear failure, experience builds success” comes in. And behind that is the custom of “Create opportunities for employees.” Managers give the members of their team enjoy the opportunity to overcome challenges and achieve success. They “create opportunities for employees” in the members of their team, and support them on their way to success.


We continue to emphasize the quality of the services and products we offer our customers. This has brought us growth. Therefore, “insistence on quality” is the way each of us uncompromisingly demands our own quality. “Job Quality” does not end with you. It means understanding your customer’s standpoint and doing all you can offer that customer higher quality than expected through innovative ideas and inventions. This requires a severely ambitious spirit, to do just a little bit more, only a tiny bit more, to boost our jobs’ quality and our customers’ satisfaction.


We put a great deal of weight on doing business in such a way that we build credit and trust from customers and business partners, from the community and society, and from the state and the nation. We build invaluable trust by always making fair and truthful decisions and by an accumulation of efforts with a very high degree of transparency, which is “Build trust, transparency and respect.” We are proud of what we have achieved so far, and feel that the trust we have earned is vital to our long-term growth.

YKK Americas Group Fundamental Behaviors

At the YKK Americas Group, we believe in the CYCLE OF GOODNESS® – the idea that “no one prospers without rendering benefit to others.” We’re committed to creating value for our customers, employees, and society in all that we do. Our three Core Values provide the framework for carrying out these objectives. But what do these values mean on a daily basis? The 25 Fundamental Behaviors that provide the answer. They describe the daily practices that bring our culture to life. Click here to learn more.