Quality Assurance

Ohara confidently supplies world-class materials of the highest quality to its 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.



Our certification for the ISO9001:2015 international standard was renewed through an inspection by a third-party certifying body. By aligning the OHARA quality management system with corporate strategy policies, we clarified risks and issues that would affect quality, allowing us to provide products and services trusted by customers. At OHARA, high-accuracy quality assurance methods will be offered for products for new customers’ using the material evaluation technology that has been cultivated.

LRQA Certified
Quality Assurance
Quality Assurance