Yoshikazu Yama

Title: Yoshikazu Yama: Semiconductor Laser Inventor.

Introduction

Yoshikazu Yama is an inventor associated with Shiga, Japan. His recorded patent work includes an invention concerning semiconductor laser design. He is associated with Omron Tateisi Electronics Co.

Latest Patents

Yama is credited with 1 patent, titled “Semiconductor laser.” The patent describes a layered structure in which a p-type semiconductor layer, an active layer, and an n-type semiconductor layer are laminated onto another n-type semiconductor layer. It also describes an electron injection electrode, a narrow current path formed within the semiconductor using inversion diffusion layers, and a positive-hole injection electrode on the p-type layer. The electrodes are arranged so that the positive-hole injection direction matches the electron injection direction.

Career Highlights

Yama’s documented innovation focuses on semiconductor laser architecture and the arrangement of its layers, current path, and injection electrodes. His recorded company affiliation is Omron Tateisi Electronics Co.

Collaborations

Yama’s listed coworkers include Hirohiko Yasuda and Shigeaki Yamashita.

Conclusion

Yoshikazu Yama’s recorded patent highlights his contribution to semiconductor laser design through a layered structure and coordinated charge-injection arrangement.