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Research and development

We leverage our development capability and high-mix, low-volume production to meet the needs of our customers.

NKK separators boast an overwhelming share of the market

Our separators for aluminum electrolyte capacitors were developed based on the technical data and manufacturing know-how we have accumulated since our founding and these have gained an overwhelming share of both the domestic and foreign markets with the electric double layer capacitor separator capturing a high global share. We will continue to challenge the future by meeting our user needs by continuing to create new products.

Why our separators boast the highest quality in the world

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