Location History:
- Tochigi, JP (1994)
- Kawasaki, JP (1996 - 2008)
Company Filing History:
Years Active: 1994-2008
Title: The Innovations of Shoji Yoshida
Introduction
Shoji Yoshida is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical technology, holding a total of 4 patents. His work primarily focuses on optical amplifying devices and optical transmission systems, showcasing his expertise in enhancing communication technologies.
Latest Patents
One of Yoshida's latest patents is an optical amplifying device. This device is designed to be placed on a transmission path of a wavelength-division multiplexing (WDM) signal. It includes an optical amplifier that amplifies the WDM signal, a detecting unit that monitors changes in the transmission wavelength count and light receiving levels, and a measuring unit that assesses the optical signal-to-noise (SN) ratio. Additionally, it features an update unit that adjusts reference values based on detected changes, a judging unit that determines if the measurement deviates from acceptable ranges, and an output unit that signals errors in the optical amplifier when necessary.
Another notable patent is for an optical transmission system. This system incorporates an optical wavelength branching unit that adjusts the wavelength transmission band based on the temperature of a branching filter. It performs a branching operation on a wavelength-multiplexed signal and includes a reception transponder for decoding error correction codes. The system also features an error correction monitoring unit and a transmission transponder for encoding error correction codes, ensuring efficient optical signal processing.
Career Highlights
Shoji Yoshida is currently employed at Fujitsu Corporation, where he continues to innovate in the field of optical technologies. His work has significantly impacted the development of advanced communication systems, making them more efficient and reliable.
Collaborations
Yoshida has collaborated with notable colleagues, including Tooru Matsumoto and Yoshihiro Shimizu. Their combined expertise has contributed to the successful development of various optical technologies.
Conclusion
Shoji Yoshida's contributions to optical technology through his patents and work at Fujitsu Corporation highlight his role as a key innovator in the field. His inventions continue to shape the future of communication technologies.