Company Filing History:
11 out of 35,689 
1 out of 5,290 
1 out of 42,494 
Years Active: 1994-2019
Title: Ryuichi Ikematsu: Innovator in Optical Network Technology
Introduction
Ryuichi Ikematsu is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical networks, holding a total of 11 patents. His work focuses on improving the efficiency and functionality of optical communication systems.
Latest Patents
Among his latest patents is an optical network controller and optical network control method. This invention addresses the challenge of enhancing the wavelength-band utilization rate of an optical network while maintaining stable operations. The optical network controller features optical wavelength region setting means, which establish a wavelength region in an optical transmission line between multiple optical nodes. It utilizes a wavelength division multiplexing system to divide the wavelength region into consecutive first and second regions. Additionally, it includes optical path setting means for configuring distinct optical paths in each wavelength region, along with a control unit that instructs the optical nodes on the central wavelength and usable band of signal light for transmission.
Another notable patent is for an optical switch, optical transmission device, and optical switching method. This invention tackles the difficulty of increasing the number of inputs and outputs of an optical switch that supports CDC functions. The optical switch comprises a unit optical switch that inputs and outputs multiple optical signals, an optical splitter that divides a single optical signal into several outputs, and an optical selector that consolidates multiple inputs into a single output. This innovative design enhances the efficiency of optical signal management.
Career Highlights
Ryuichi Ikematsu has worked with notable companies such as NEC Corporation and Nippon Telegraph and Telephone Corporation. His experience in these organizations has contributed to his expertise in optical technologies and innovations.
Collaborations
Throughout his career, Ryuichi has collaborated with esteemed colleagues, including Hiromi Ueda and Hitoshi Takeshita. These partnerships have fostered advancements in optical network solutions.
Conclusion
Ryuichi Ikematsu's contributions to optical network technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the development of efficient optical communication systems.