Company Filing History:
Years Active: 1995-2010
Title: Mizuyuki Ushirozawa: Innovator in Optical Transmission Technology
Introduction
Mizuyuki Ushirozawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical transmission technology, holding a total of 8 patents. His work focuses on enhancing the efficiency and effectiveness of wavelength division multiplexing systems.
Latest Patents
Ushirozawa's latest patents include a wavelength division multiplexing optical transmission apparatus, a wavelength division multiplexing optical transmission system, and a wavelength division multiplexing optical transmission method. The optical transmission apparatus is designed to transmit wavelength division multiplexing optical signals. It comprises multiple optical transmitting units that output optical signals with different wavelengths, along with several optical intensity modulating units that modulate these signals. The wavelength multiplexing unit then multiplexes the optical signals, ensuring that the amount of wavelength chirp is appropriately set for each signal.
Another notable patent involves a transmission device that counts change points in a digital signal over a predetermined time interval. This device includes a transmission rate identification circuit that determines the transmission rate based on the count result. The input digital signal can include an STM-N signal, with the time interval being adjustable.
Career Highlights
Mizuyuki Ushirozawa has built a successful career at NEC Corporation, where he continues to innovate in the field of optical technologies. His work has been instrumental in advancing the capabilities of optical transmission systems, making them more efficient and reliable.
Collaborations
Ushirozawa collaborates with various professionals in his field, including his coworker Makoto Yamashita. Their combined expertise contributes to the development of cutting-edge technologies in optical transmission.
Conclusion
Mizuyuki Ushirozawa is a key figure in the realm of optical transmission technology, with a strong portfolio of patents that reflect his innovative spirit. His contributions continue to shape the future of optical communication systems.