Reiko Okayama

Title: The Innovative Contributions of Reiko Okayama

Introduction

Reiko Okayama, an accomplished inventor based in Shunan, Japan, has made significant strides in the field of materials science, particularly in the production of aluminum nitride (AlN) single crystal substrates. With a total of two patents to her name, she exemplifies the spirit of innovation and dedication to advancing technology.

Latest Patents

Reiko Okayama's recent inventive efforts include a groundbreaking method for producing aluminum nitride single crystal substrates. This method outlines a comprehensive process that begins with preparing a first base substrate consisting of a first AlN single crystal, followed by growing a first AlN single crystal layer. The process involves separating and polishing the layered body to yield a high-quality second AlN single crystal substrate.

Additionally, she has patented a method for manufacturing aluminum-based group III nitride single crystals using hydride vapor phase epitaxy. This method introduces a novel approach where an aluminum halide gas and a nitrogen source gas are supplied onto a base substrate in the presence of a halogen-based gas. The reaction conditions are carefully orchestrated to ensure a growth rate of at least 10 μm/h for the aluminum-based group III nitride single crystals.

Career Highlights

Reiko Okayama is currently employed at Tokuyama Corporation, where she actively contributes to the advancement of semiconductor materials. Her work not only enhances the understanding of crystal growth processes but also has potential applications in the electronics and optoelectronics industries.

Collaborations

Throughout her career, Reiko has collaborated with other notable scientists, including Toru Nagashima and Akinori Koukitsu. These collaborations have undoubtedly enriched her research and contributed to her innovative successes in the field of material sciences.

Conclusion

Reiko Okayama stands as a remarkable figure in the innovation landscape, particularly in the production of aluminum nitride single crystal substrates. Her patented methods signify a leap forward in material manufacturing techniques, influencing the future of technology in significant ways. Her contributions demonstrate that female inventors play a crucial role in shaping the advancements of science and engineering.