EDP Japan

About EDP Japan

EDP (Excellent Diamond Products) Corporation is a Japanese company specializing in the manufacturing and development of large, single-crystal diamonds for industrial use. The company was founded on September 8, 2009, by Naoji Fujimori, who has over 30 years of experience in diamond research, including his time at Sumitomo Electric Industries and as the director of the Diamond Research Center at the National Institute of Advanced Industrial Science and Technology (AIST). EDP was established to commercialize the single-crystal diamond manufacturing technology developed at AIST, receiving the title of an "AIST-certified venture."

The company's core technology is a chemical vapor deposition method, which uses a plasma discharge to grow diamond seed crystals from hydrogen and methane gas. This process allows for the creation of large single-crystal diamonds, such as 10x10 mm or larger, and 30x30 mm mosaic crystals, which were previously difficult to produce. These diamonds possess superior properties, including extreme hardness and high thermal conductivity, making them ideal for a range of applications.

EDP's business focuses on producing materials for various sectors. Its main products include seed crystals for artificial gems, substrates for semiconductors, heat spreaders and optical components, and materials for cutting tools. The company serves clients in high-tech industries that require materials with advanced thermal and optical properties. A major long-term goal is the development of diamond semiconductors, which are considered ideal due to their high voltage endurance and thermal conductivity. EDP went public and was listed on the Tokyo Stock Exchange's Growth Market on June 27, 2022.