Location History:
- Yokosuka, JP (2007 - 2008)
- Yokohama, JP (1998 - 2009)
- Kanagawa, JP (2009 - 2011)
- Makuhari, JP (2011)
Company Filing History:
20 out of 5,290 
1 out of 27,375 
Years Active: 1998-2011
Title: The Innovations of Katsumi Iwatsuki: A Pioneer in Optical Communication
Introduction
Katsumi Iwatsuki, based in Yokohama, Japan, is a notable inventor with a remarkable portfolio of 20 patents to his name. His work primarily focuses on advancements in optical communication systems, showcasing a deep commitment to innovation in this rapidly evolving field.
Latest Patents
Iwatsuki's recent patents include groundbreaking inventions such as an optical wavelength multiplexing access system and an optical communication light source unit with a wavelength monitoring control method. The optical wavelength multiplexing access system allows for a star-type wavelength multiplexed communication network using optical transmission and reception devices, enabling wavelength assignment without the need for monitoring light. The optical TX/RX device intelligently detects RX wavelengths not in use and assigns them appropriately, facilitating efficient communication.
Additionally, the optical communication light source unit simplifies the setting and control of optical output wavelengths and powers, eliminating the need for costly optical components. This invention uses stored values to determine the relationship between drive current, device temperature, and optical output parameters.
Career Highlights
Throughout his career, Katsumi Iwatsuki has contributed his expertise to renowned companies such as Nippon Telegraph and Telephone Corporation and Matsushita Electric Industrial Co., Ltd. His experience in these esteemed organizations has propelled his innovations and has positioned him as a leader in his field.
Collaborations
Iwatsuki has collaborated with distinguished professionals, including Mitsuhiro Teshima and Noboru Takachio. Their collective efforts have fostered a rich environment for research and development, leading to pioneering advancements in optical technology.
Conclusion
Katsumi Iwatsuki’s contributions to optical communication demonstrate his ingenuity and commitment to progress in the field. His patent portfolio not only highlights his innovative spirit but also serves as a testament to the importance of collaborative efforts in driving technology forward. As innovations continue to evolve, Iwatsuki remains a key figure to watch in the realm of optical technologies.