Hiroshi Marui

Title: Hiroshi Marui: Innovator in Nitride Semiconductor Technology

Introduction

Hiroshi Marui is a prominent inventor based in Tokushima, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of nitride semiconductor devices. With a total of 2 patents, Marui's work has had a substantial impact on the industry.

Latest Patents

Marui's latest patents focus on nitride semiconductor devices that are primarily used as laser diodes (LD) and light-emitting diode (LED) elements. These devices are designed to enhance output and reduce voltage drop (Vf). The innovative designs include a three-layer structure where a nitride semiconductor layer, doped with n-type impurities, serves as an n-type contact layer. This layer is sandwiched between undoped nitride semiconductor layers. Alternatively, a superlattice structure of nitride can also be employed. The n-type contact layer boasts a carrier concentration exceeding 3×10¹⁸ cm^-3, and the resistivity can be lowered to below 8×10⁻² Ω·cm.

Career Highlights

Hiroshi Marui is associated with Nichia Corporation, a leading company in the field of semiconductor technology. His work has been instrumental in advancing the capabilities of nitride semiconductors, which are crucial for modern lighting and laser applications.

Collaborations

Marui has collaborated with notable figures in the industry, including Shuji Nakamura and Takashi Mukai. These partnerships have fostered innovation and have contributed to the development of cutting-edge technologies in the semiconductor sector.

Conclusion

Hiroshi Marui's contributions to nitride semiconductor technology exemplify his dedication to innovation in the field. His patents and collaborations highlight the importance of teamwork in advancing technological frontiers.