Masahiko Moteki

Title: Masahiko Moteki: Innovator in Semiconductor Technology

Introduction

Masahiko Moteki is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of light-emitting devices. With a total of 4 patents to his name, Moteki continues to push the boundaries of innovation in this critical area.

Latest Patents

One of his latest patents is a GaN-containing semiconductor light-emitting device. This device includes an n-type semiconductor layer formed of GaN-containing semiconductor, an active layer with a multiple quantum well structure, and a p-type semiconductor layer. The barrier layers consist of a first barrier layer made of a GaN/AlGaN layer and second barrier layers made of an InGaN/GaN layer. The well layers are formed of an InGaN layer, which has a narrower band gap than that in the InGaN sublayer.

Another notable patent is for a semiconductor light-emitting element and its manufacturing method. This element features a first semiconductor layer, a second semiconductor layer, and an active layer situated between them. A polarity inversion layer is provided on the second semiconductor layer, along with a third semiconductor layer. The crystal orientations of these layers are inverted, with the polarity inversion layer acting as a boundary. The design includes hexagonal conical protrusions arising from the crystal structure, enhancing the device's performance.

Career Highlights

Masahiko Moteki is currently employed at Stanley Electric Co., Ltd., where he continues to innovate in the semiconductor field. His work has been instrumental in advancing technologies that are essential for modern lighting and display applications.

Collaborations

Moteki has collaborated with notable colleagues, including Yusuke Yokobayashi and Satoshi Tanaka. These partnerships have fostered a creative environment that encourages the exchange of ideas and expertise.

Conclusion

Masahiko Moteki's contributions to semiconductor technology exemplify the spirit of innovation. His patents reflect a deep understanding of materials and engineering principles, paving the way for future advancements in light-emitting devices.