Ken Usui

Title: Ken Usui: Innovator in Optical Power Supply Technology

Introduction

Ken Usui is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of optical power supply technology. With a total of 2 patents to his name, Usui continues to push the boundaries of innovation in his industry.

Latest Patents

Usui's latest patents include an optical power supply converter and a semiconductor light receiving element. The optical power supply converter features a semiconductor light receiving element that includes a light receiving section on the main surface of a semiconductor substrate. This substrate has at least one inclined end surface that intersects the main surface at an acute angle, allowing light incident on the inclined end surface to be refracted toward the receiving section. The semiconductor light receiving element comprises a light absorption region formed near the main surface of the semiconductor substrate, which is transparent to the incident light. It also includes an incident region that is concentric with and larger than the light absorption region, along with a partially spherical concave reflecting portion on the back surface of the semiconductor substrate. This design enables the reflection of incident light toward the light absorbing region.

Career Highlights

Ken Usui is currently employed at Kyoto Semiconductor Co., Ltd., where he applies his expertise in semiconductor technology. His work has been instrumental in advancing the capabilities of optical power supply systems.

Collaborations

Usui collaborates with notable colleagues, including Etsuji Omura and Takatomo Isomura. Their combined efforts contribute to the innovative projects at Kyoto Semiconductor Co., Ltd.

Conclusion

Ken Usui is a key figure in the development of optical power supply technology, with a focus on enhancing semiconductor light receiving elements. His contributions and collaborations continue to shape the future of this field.