Central Filter Mfg. Co., Ltd.


Business philosophy

Central Filter Mfg. Co., Ltd. and its group companies have embraced management based on “Nature and Life” and “Environment and Health,” which are eternal themes of “Earth and Humankind.” We strive to contribute to the society of the future by providing high-quality filters, related products, and system products.

Business policies

We work to develop numerous unique products that closely align with market needs and differentiate us from competitors and to become a company with the flexibility, diversity, and exceptional technological capabilities needed to maintain leadership in a niche market.

The Central Filter Group meets a diverse range of customer needs with state-of-the-art filtration technology and an extensive product line that its companies have developed to date.

Quality Policy

  • We supply highly reliable products and technologies that meet customers’ needs.

  • We strive to improve the quality of our products and the sophistication of our technologies.

  • We strive to facilitate the development of our businesses by planning and undertaking an ongoing program of quality-related activities.

  • We make improvements by repeatedly reviewing and reassessing those activities.

  • We comply with all applicable laws and regulations.


1. Complying with laws and regulations
We comply with laws and company regulations.

2. Respecting contracts
We enter into fair contracts with business partners and respect their terms.

3. Engaging in legal, appropriate transactions with business partners
We pursue fair business transactions.

4. Prohibiting insider trading
We never engage in any conduct or behavior that constitutes, or invites suspicion of, insider trading.

5. Eliminating relationships with anti-social forces
We never engage in anti-social business transactions.

6. Rigorously separating business and private interests
We rigorously separate personal and corporate interests so that we can carry out operations in a spirit of sincerity and good faith.

7. Respecting human rights
We respect human rights and never engage in discrimination or harassment.

8.Realizing safe, employee-friendly workplaces
We comply with all laws and internal rules related to safety and health.

9. Using information systems in an appropriate manner
We use the company’s information systems only for the purpose of carrying out its operations.

10. Managing confidential information appropriately
We manage confidential information obtained in a legal manner appropriately and in accordance with laws and internal rules.