Takako Hayashi

Title: Takako Hayashi: Innovator in Semiconductor Technology

Introduction

Takako Hayashi is a prominent inventor based in Yokohama, Japan. She has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. Her work focuses on innovative light-emitting devices that have applications in various industries.

Latest Patents

One of her latest patents is a semiconductor light emitting apparatus. This apparatus includes a semiconductor lamination of n-type layer, active layer, and p-type layer. It features a recess that penetrates the lamination from the p-type layer, exposing the n-type layer. The design includes an n-side electrode formed on the n-type layer at the bottom of the recess, extending upward above the p-type layer. Additionally, a p-side electrode is formed on the p-type layer, with an opening surrounding the recess in plan view. The n-side electrode extends from inside to above the recess, while an insulating layer is disposed between the p-side and n-side electrodes on the p-type layer. The p-side electrode acts as a reflective electrode, reflecting light incident from the active layer, and the n-side electrode includes a reflective electrode layer that covers the opening in plan view, reflecting light from the emission layer side.

Another notable patent is an LED array that consists of a substrate and a semiconductor structure layer provided on the substrate. This semiconductor structure layer includes a first semiconductor layer, an active layer formed on the first semiconductor layer, and a second semiconductor layer formed on the active layer. The semiconductor structure layer is partitioned into multiple light emitting sections by grooves formed within it. Each groove is defined by two opposite side faces of adjacent light emitting sections, with a recessed and protruding configuration that allows for efficient light emission.

Career Highlights

Takako Hayashi is currently employed at Stanley Electric Co., Ltd., where she continues to innovate in the field of semiconductor technology. Her work has garnered attention for its potential to enhance the performance and efficiency of light-emitting devices.

Collaborations

Throughout her career, Takako has collaborated with notable colleagues, including Mamoru Miyachi and Tatsuma Saito. These collaborations have contributed to the advancement of her research and the development of her patented technologies.

Conclusion

Takako Hayashi is a trailblazer in semiconductor technology, with a focus on innovative light-emitting devices.