Location History:
- Shinagawa-ku, JP (2004 - 2006)
- Kawasaki, JP (1997 - 2008)
Company Filing History:
Years Active: 1997-2008
Title: **Yumiko Kawasaki: A Pioneer in Optical Transmission Technologies**
Introduction
Yumiko Kawasaki, based in Kawasaki, Japan, is an accomplished inventor known for his significant contributions to the field of optical transmission systems. With a remarkable portfolio of 22 patents, Kawasaki has continually pushed the boundaries of optical technology, enhancing both efficiency and performance in communication systems.
Latest Patents
Among his most recent innovations are two notable patents focusing on advanced optical transmission systems. The first patent describes an optical transmission system featuring a dispersion compensator situated within the receiver. This system includes an electro-optical (E/O) signal converter and a post-amplifier within the transmitter, utilizing RZ-coded optical signals to improve performance. The pre-chirp performed by the optical signal helps mitigate non-linear effects during transmission, thereby suppressing dispersion and increasing the optical output power.
Kawasaki's second patent elaborates on an optical transmission system employing in-line amplifiers. This design incorporates red chirping on the transmitting side to effectively manage dispersion across transmission paths. Each repeater includes a dispersion compensator, which optimally adjusts to ensure a constant compensation level for the preceding paths, thus enhancing signal integrity and pulse width efficiency.
Career Highlights
Yumiko Kawasaki's career has been defined by his role at Fujitsu Corporation, where he has been instrumental in the development of cutting-edge optical technologies. His work not only reflects his individual expertise but also represents the collaborative spirit of innovation that thrives within the company.
Collaborations
Throughout his career, Kawasaki has collaborated with esteemed colleagues such as Kazuo Yamane and Satoru Okano. Their collective efforts have contributed to significant advancements in optical communication, showcasing the importance of teamwork in driving innovation.
Conclusion
As a visionary inventor, Yumiko Kawasaki continues to shape the landscape of optical transmission technology. His extensive portfolio of patents and collaborative projects underscores his commitment to innovation and excellence in the field. Through his contributions, Kawasaki has not only impacted Fujitsu Corporation but has also set a benchmark for future advancements in optical communications.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.