Location History:
- Tokyo, JP (2000)
- Yokohama, JP (1997 - 2008)
Company Filing History:
Years Active: 1997-2008
Title: Hitoshi Obara: Innovator in Optical Communication Technologies
Introduction: Hitoshi Obara is a notable inventor based in Yokohama, Japan, recognized for his significant contributions to the field of optical communication. He holds four patents that showcase his innovative spirit and technical prowess in developing advanced communication systems.
Latest Patents: Among his latest inventions is a remarkable patent for a node apparatus for an optical wavelength division multiplexing network. This system features a multi-level structure where numerous optical network units (ONUs) are linked to a lowest-level network. His design includes passive optical components that efficiently branch optical signals from a higher-level network to a lower-level network while coupling signals effectively. Additionally, the node apparatus incorporates optical amplifiers to enhance the optical signals. This invention allows for an efficient communication path between diverse network levels without requiring the conversion of optical signals into electrical signals.
Career Highlights: Hitoshi Obara has been affiliated with Nippon Telegraph and Telephone Corporation, where he has played a crucial role in advancing optical communication technologies. His expertise in optical wavelength division multiplexing networks has led to the development of systems that provide large-capacity access services with simplified structures, making significant strides in the field of communications.
Collaborations: Throughout his career, Hitoshi has collaborated with esteemed colleagues such as Noboru Takachio and Katsumi Iwatsuki. Their combined efforts have contributed to groundbreaking innovations and advancements in optical networking technologies.
Conclusion: Hitoshi Obara stands out as a prominent inventor whose work has greatly influenced optical communication systems. His innovative patents and collaborations continue to shape the future of communication technology, ensuring more efficient and robust networks for users globally.