Company Filing History:
5 out of 21,351 
3 out of 446 
3 out of 9 
Years Active: 2004-2009
Title: Kenkichi Shimomura: Innovator in Optical and Bias Circuit Technologies
Introduction
Kenkichi Shimomura is a prominent inventor based in Tokyo, Japan. He holds a total of 7 patents that showcase his contributions to the fields of bias circuits and optical transmission technologies. His innovative work has significantly impacted the way signals are processed and transmitted in modern communication systems.
Latest Patents
One of Shimomura's latest patents is a bias circuit designed to supply bias voltage or current to a transmission line. This circuit includes an inductor that effectively prohibits high-frequency components of a baseband signal while allowing frequency components near direct current to pass through. Additionally, it features an impedance-decrease prevention element that mitigates impedance reduction caused by resonance between parasitic capacitance and the inductor's inductance. Another notable patent is for an optical transmitter that incorporates a signal carrier-suppressed pulse modulating unit. This unit performs pulse modulation on a light source signal to create a CS-RZ signal, followed by a phase modulating unit that converts the data signal into a phase-modulated signal. An optical filtering unit is also included to eliminate redundant frequency components from the phase modulation signal.
Career Highlights
Throughout his career, Kenkichi Shimomura has worked with leading companies in the technology sector, including Mitsubishi Electric Corporation and KDDI Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in communication technologies.
Collaborations
Shimomura has collaborated with notable colleagues such as Takashi Mizuochi and Yasunori Kasahara. Their joint efforts have further enhanced the development of cutting-edge technologies in their respective fields.
Conclusion
Kenkichi Shimomura's contributions to bias circuits and optical transmission technologies highlight his role as a significant innovator in the industry. His patents reflect a commitment to advancing communication systems, making him a noteworthy figure in the realm of inventions.