Tomoyuki Ohtsuka

Title: Tomoyuki Ohtsuka: Innovator in Optical Transmission Systems

Introduction

Tomoyuki Ohtsuka is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical transmission systems, holding a total of 4 patents. His work focuses on enhancing the efficiency and quality of optical communication technologies.

Latest Patents

Ohtsuka's latest patents include a Coarse Wavelength Division Multiplexing (CWDM) optical transmission system and a corresponding method. In his CWDM optical transmission system, he innovatively replaces an optical signal from a CWDM system with Dense Wavelength Division Multiplexing (DWDM) light. This DWDM light is multiplexed with CWDM signals and sent through a transmission path, ensuring that the total power of the DWDM light is attenuated to match the power per wavelength of the CWDM light. This approach allows for the addition of optical signals in a CWDM system at a low cost while maintaining transmission quality. Another significant patent involves a circuit for generating a discrimination voltage level, which serves as a reference voltage for distinguishing between adjacent logic levels in input signals.

Career Highlights

Throughout his career, Ohtsuka has worked with prominent companies, including Fujitsu Corporation. His experience in these organizations has contributed to his expertise in optical technologies and innovations.

Collaborations

Ohtsuka has collaborated with notable individuals in his field, including Masaaki Kawai and Hisako Watanabe. These collaborations have likely enriched his work and led to further advancements in optical transmission systems.

Conclusion

Tomoyuki Ohtsuka's contributions to optical transmission technology demonstrate his innovative spirit and commitment to enhancing communication systems. His patents reflect a deep understanding of the complexities involved in optical technologies, making him a significant figure in the field.