About YKK AP

YKK Group and YKK AP Philosophy

YKK's founder, Tadao Yoshida made the "Cycle of Goodness" the central philosophy of all business activities.
Based on this philosophy, and in keeping with the times, Tadahiro Yoshida, the second YKK president and YKK AP's Founder, established the Management Principle, "YKK seeks corporate value of higher significance."
Then, YKK AP defined its "Purpose," which was developed on the basis of these corporate philosophies, as the meaning of its existence. As we continue to focus on the "Architectural Products" of our company name, we are committing ourselves to being a company that builds a better society.

YKK Philosophy

The corporate philosophy of YKK's founder, Tadao Yoshida, expresses the fundamental position of the YKK Group.

YKK Philosophy


"No one prospers without rendering benefit to others."

As an important member of society, a company survives through coexistence.
When the benefits are shared, the value of the company's existence will be recognized by society.
When pursuing his business, YKK's founder, Tadao Yoshida was most concerned with that aspect, and would find a path leading to mutual prosperity.
He believed that using ingenuity and inventiveness in business activities and constantly creating new value would lead to the prosperity of clients and business partners, making it possible to contribute to society.
This way of thinking is referred to as the "Cycle of Goodness" and has always served as the foundation of our business activities.
We have inherited this way of thinking and have established this as the YKK Philosophy.

Management Principle

Based on the "Cycle of Goodness" philosophy, our management principle highlights the importance of increasing corporate value in step with the times.

Management Principle

Seeking corporate value of higher significance, YKK will pursue innovative quality in the seven key areas shown above.

"YKK seeks corporate value of higher significance."

The YKK Group's Management Principle, based on the spirit of the "Cycle of Goodness," is to "seek corporate value of higher significance." We aspire to become a company that is appreciated by our customers, valued by society, and where all employees are able to work with pride and pleasure. As a means to achieve this, we will enhance the quality of our products, technology, and management. In putting these into practice, we always place Fairness at the foundation of all our business activities.

Core values

What we hold dear to enhancing corporate values for the future are summed up in three mottos:

Core values

Do not fear failure; experience builds success. / Create opportunities for employees.
Insist on quality in everything.
Build trust, transparency and respect.

Core values are the common values that each of us cherishes and aspires to put into practice.
Our 3 mottos encompass our desire to be a company that provides values to our employees through "Development of human resources", to our customers through the philosophy of "Monozukuri", and to the society through "Developing relationships".
These are our values that reaffirm "YKK's culture" fostered over the years to pass on, as we approach our 100th anniversary.


At YKK AP, building a better society through our activities is the meaning and purpose of our business.


We Build a Better Society Through Architectural Products.

With a spirit of curiosity and exploration, we develop architectural products of true value that connect people, planet, and the future.
We want to create a better society, while remaining committed to the art and technology that have always been fundamental to architectural culture.

YKK Group Code of Conduct

YKK Group has established the YKK Group Code of Conduct that sets the scopes of behavior of which YKK Group employees in all countries and regions should be aware.

View the YKK Group Code of Conduct

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