Kazuhiro Ohkawa

Title: Kazuhiro Ohkawa: Innovator in Semiconductor Technology

Introduction

Kazuhiro Ohkawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, particularly through his innovative patents. His work has had a lasting impact on the development of light-emitting devices.

Latest Patents

Kazuhiro Ohkawa holds a patent for a light-emitting ceramic substrate that includes group-III nitride. This patent describes a semiconductor device where a YAG substrate is formed as a single-crystal substrate of various surface orientations, including (100), (110), and (111). The fabrication process involves feeding TMAl gas onto the YAG substrate to create a nucleation layer made of aluminum, a group-III element. Following this, NH gas is introduced to transform the nucleation layer's surface into a group-V element, leading to the formation of a group-III-V compound layer of AlN. A mixed gas of TMAl and NH is then fed onto this compound layer to create another group-III-V compound layer. Finally, a group-III nitride semiconductor layer is crystal-grown on the group-III compound layer.

Career Highlights

Throughout his career, Kazuhiro Ohkawa has worked with notable organizations, including Koito Manufacturing Company, Ltd. and Tokyo University of Science. His experience in these institutions has allowed him to refine his expertise in semiconductor technology and contribute to various innovative projects.

Collaborations

Kazuhiro Ohkawa has collaborated with esteemed colleagues such as Akihiro Nomura and Akira Hirako. These partnerships have fostered a creative environment that has led to advancements in their respective fields.

Conclusion

Kazuhiro Ohkawa is a distinguished inventor whose work in semiconductor technology has paved the way for advancements in light-emitting devices. His innovative patent and collaborations highlight his significant contributions to the industry.