Yuji Okura

Title: Innovations of Yuji Okura in Semiconductor Laser Technology

Introduction

Yuji Okura is a notable inventor based in Itami, Japan, recognized for his contributions to semiconductor laser technology. With a total of two patents to his name, Okura has made significant advancements in the field, particularly in the fabrication and design of semiconductor lasers.

Latest Patents

Okura's latest patents include a method of making a semiconductor laser and the semiconductor laser itself. The method involves forming a double heterojunction structure on a first conductivity type semiconductor substrate, which is then shaped into a stripe mesa through selective etching. This process includes the growth of various layers to embed the mesa and the addition of impurities to create electrically separated regions. The semiconductor laser patent describes a structure that includes a double-heterojunction with cladding layers and an active layer, designed to prevent leakage current paths, thereby enhancing the efficiency of the laser.

Career Highlights

Yuji Okura has built a distinguished career at Mitsubishi Electric Corporation, where he has focused on semiconductor technologies. His innovative approaches have contributed to the advancement of laser technology, making significant impacts in various applications.

Collaborations

Okura has collaborated with esteemed colleagues such as Kenzo Mori and Tadashi Kimura, further enriching his work and expanding the scope of his innovations.

Conclusion

Yuji Okura's work in semiconductor laser technology exemplifies the spirit of innovation and dedication to advancing the field. His patents reflect a deep understanding of the complexities involved in semiconductor design and fabrication.