Masaki Kohtoku

Title: Masaki Kohtoku: Innovator in Semiconductor Technology

Introduction

Masaki Kohtoku is a prominent inventor based in Atsugi, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on enhancing the performance and stability of optical modulation elements.

Latest Patents

Kohtoku's latest patents include a semiconductor optical modulation element and an optical wavelength multiplexing/de-multiplexing circuit. The semiconductor optical modulation element is designed to provide a Mach-Zehnder type modulator that is ultrafast and exhibits excellent electrical stability. This invention utilizes a refractive index modulation region to modulate light guided through an optical waveguide. The optical wavelength multiplexing/de-multiplexing circuit aims to achieve low loss and a flat transmission spectrum while compensating for temperature dependence of the center transmission wavelength.

Career Highlights

Masaki Kohtoku is currently employed at Nippon Telegraph and Telephone Corporation, where he continues to innovate in the field of semiconductor technology. His work has been instrumental in advancing optical communication systems.

Collaborations

Kohtoku has collaborated with notable coworkers, including Shin Kamei and Tsutomu Kitoh, contributing to various projects that enhance the capabilities of semiconductor devices.

Conclusion

Masaki Kohtoku's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in optical communication systems.