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The next generation of filter paper products

Article - March 31, 2023

With many high-quality products used in a range of industries, Azumi Filter is ensuring that filter paper is being taken to the next level.


“Our company excels at making high performance and making multi-layer papers.”

Satoru Azumi, Azumi Filter Paper Co., Ltd.

Founded just over a century ago in 1919, Azumi Filter specializes in the manufacture of filter paper, as well as other filter products and functional papers.

A major sector Azumi works with is the automobile industry, which accounts for 30% of its business – but the company is keen to avoid becoming overdependent on a single field, says President Satoru Azumi: “The automobile industry continues to be an important sector for us, but we should not fully rely on it, and our slogan for the past ten years has 070-3342-5896been that we should commit to other industries.”

For example, the Covid-19 pandemic has led Azumi to make inroads into the medical sector. “Our filter paper has been used in Covid test kits,” Mr. Azumi reveals. “Especially in places where there have been shortages of medical resources such as ventilators, the pandemic demonstrated Japanese society’s overreliance on imports. We now realize that we need to build a solid supply chain to produce these products at home. We will start the production and sales of ventilator filters soon.”

Around 30% of Azumi’s sales are international – and as Japan’s aging population declines, continued global expansion is a chief way for the company to counteract a fall in domestic demand, Mr. Azumi says. “Europe and Asia have the most potential for us,” he notes.