Seiichi Itabashi

Title: Seiichi Itabashi: Innovator in Photodiode Technology

Introduction

Seiichi Itabashi is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of photodiode technology, particularly with his innovative designs that enhance optical waveguide systems. His work has implications for various applications in telecommunications and optical devices.

Latest Patents

Itabashi holds a patent for a waveguide path coupling-type photodiode. This invention features a semiconductor light absorbing layer and an optical waveguide path core that are arranged adjacently. An electrode, formed of at least one layer, is installed at the boundary of the semiconductor light absorbing layer and the optical waveguide path core. The electrodes are strategically arranged at an interval of (1/100)λ to λ, where λ represents the wavelength of light transmitted through the optical waveguide path core. Notably, at least a part of the electrodes is embedded in the semiconductor light absorbing layer, with an embedding depth not exceeding λ/(2 ns), where ns is the refractive index of the semiconductor light absorbing layer. Additionally, at least one layer of the electrode is made from a material capable of inducing surface plasmon effects.

Career Highlights

Throughout his career, Itabashi has worked with prominent companies such as NEC Corporation and Nippon Telegraph and Telephone Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in photonics and semiconductor technology.

Collaborations

Itabashi has collaborated with esteemed colleagues, including Junichi Fujikata and Jun Ushida. These partnerships have fostered a creative environment that has led to innovative solutions in the field of optical technologies.

Conclusion

Seiichi Itabashi's contributions to photodiode technology exemplify the impact of innovative thinking in the field of optics. His patented designs and collaborations with industry leaders highlight his role as a significant figure in advancing photonic applications.