flexible printed circuits

Differentiation Through In-House Adhesive Development

One of NOK’s signature products, the oil seal, is typically made by combining rubber, a metal ring, and a spring. Adhesives are used to integrate these different materials into a single unit. However, bonding dissimilar materials such as rubber and metal is technically challenging, and oil seals must also perform reliably in demanding environments. For instance, they need to maintain adhesion while exhibiting heat and oil resistance, even at temperatures exceeding 100°C. To meet these stringent specifications, NOK has developed its own in-house adhesives for over 60 years.

Leveraging Group Strengths to Develop FPC-Based Cell Separation Devices

NOK is set to celebrate its 100th anniversary in 2041. As part of its long-term initiatives, the company has identified wellness-related fields — including life sciences and healthcare — s priority areas for innovation. Within this focus, NOK is striving to commercialize cell separation technology using flexible printed circuits (FPC) — a product line that exemplifies the synergy created through the specialized expertise of its Group companies. FPC are the flagship products of Mektec, a NOK Group company engaged in the manufacture and sales of electronic products. Headquartered in Tokyo's Minato Ward, and known globally as a leading player in the FPC market, Mektec is now advancing research and development to harness the unique advantages FPC bring for cell separation devices.

Expanding FPC Applications: Opportunities in Vehicle Electrification

Flexible printed circuits (FPC) are thin and flexible circuit boards that enable the miniaturization of electronic devices and improve component mounting capabilities. Mektec, based in Minato City, Tokyo, and led by President Taro Ito, is part of the NOK Group and plays a key role in its electronic products business. Mektec holds the third-largest global market share in FPC sales. Since it began operations in 1969, Mektec has pioneered the domestic FPC market, leading its growth and development.