The Architectural Products Business Group manufactures YKK AP brand products, and does business in Japan and Asia as well as in the United States. Our production system features products developed to meet market needs precisely, manufactures to consistent standards, and delivers a level of quality trusted around the world. The YKK AP brand aims to increase the value of buildings with entrance and window systems that offer quality, diversity, and uniqueness, based on the wide-ranging know-how we have accumulated through major projects around the world. Our customers know they can rely on us for top-quality manufacturing, precision installment, and dependable after-sales service.