Quality Assurance

We will maintain our corporate DNA, the “pursuit of the highest quality,” we confidently supply world-class new materials to our customers.

We will maintain our corporate DNA, the “pursuit of the highest quality,” we confidently supply world-class new materials to our customers.

Quality assurance efforts

OHARA, propelled by its corporate DNA, the “pursuit of the highest quality”, we provide products and services that satisfy our customers and confidently develop and produce world-class new materials. Precision and homogeneity are the two characteristics most strictly required from optical and special glass. It means that their physical and optical properties must meet the design requirements and there must be no discrepancies among the same products.
All of the processes, including mixing of raw materials, cullet melting and preparation, continuous melting, pressing, cold working, annealing, product inspection, shipping and quality checks performed by internal staff and our partners across diverse production processes, have allowed us to develop management techniques that are among the best in the world. We focus our meticulous attention and efforts on maintaining and improving these techniques.

Quality & Environmental Policy


OHARA inc. will practice sustainability management to become a 100-year company, share our vision and strategy with related stakeholders based on the OHARA Value Creation Model, and open up the future by creating new values co-creation to address social and environmental issues. We will also realize carbon neutrality as a key management issue to realize a sustainable well-being of our planet.


◇ Protect sustainable well-being of our planet
We will promote GHG (greenhouse gas) reduction, waste reduction and reuse, energy and resource conservation, and substitution of environmentally hazardous substances in order to reduce our environmental impact.
◇ Complying with Laws and Regulations
We comply not only with applicable laws and regulations, but also with international frameworks and conventions, relevant organizations, and customer requirements.
◇ Customer trust and satisfaction
To provide products and services that gain customer trust and satisfaction, we start by fully understanding our customers’ needs and ensure they are shared with all concerned, including our partners.
◇ Value co-creation with stakeholders
We share social issues with relevant stakeholders, including local community, business partners, and related organizations, and strive to co-create the value.
◇ Value Creation Model in Action
We will enhance our human capital by fostering a culture of diversity and challenge in our human resources, and co-create the value to realize sustainable management.
◇ Craftsmanship that opens the future with outstanding materials
We integrate and compound materials into the forms required by our customers. We also reduce environmental impact and build quality into our products at the planning, design, and manufacturing stages.
◇ Establishment and continuous improvement of quality & environmental management systems
To ensure the implementation of the established Quality & Environmental Policy, we will establish and continuously improve our quality & environmental management system.

November 1, 2023.
President Chief Executive Officer
Hirokazu Saito


Related information can be viewed by following the links below.
The things we focus on in manufacturing are explained.