Yoshikazu Terayama

Title: Innovations of Yoshikazu Terayama

Introduction

Yoshikazu Terayama is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical technology, holding a total of 2 patents. His work focuses on enhancing the performance and reliability of optical receivers.

Latest Patents

Terayama's latest patents include a method for detecting abnormalities in an optical receiver. This invention involves an optical apparatus that branches input light modulated by DQSPK format, outputting two branched lights. The system includes an interferometer, a photo detector, and a discriminator to demodulate I-signal and Q-signal. An abnormality detection unit is designed to identify issues in the input light through synchronized detection of demodulated signals and recovered signals from both branches.

Another significant patent is a phase control apparatus and optical DQPSK receiver. This invention features a calculation processing unit that regulates the temperature of a Peltier device based on waveform analysis. It also controls the phases of both the A-arm and B-arm of the optical system. Micro-controllers on both sides manage the temperature and phase adjustments, ensuring optimal performance.

Career Highlights

Yoshikazu Terayama is currently employed at Fujitsu Corporation, where he continues to innovate in optical technologies. His work has been instrumental in advancing the capabilities of optical communication systems.

Collaborations

Throughout his career, Terayama has collaborated with esteemed colleagues such as Noriaki Mizuguchi and Takashi Toyomaki. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Yoshikazu Terayama's contributions to optical technology through his patents and collaborations highlight his role as a leading inventor in the field. His innovative solutions continue to impact the industry positively.