Company Filing History:
1 out of 5,290 
1 out of 5 Years Active: 1995
Title: Kazumasa Nemoto: Innovator in Submarine Optical-Fiber Technology
Introduction
Kazumasa Nemoto is a notable inventor based in Yokosuka, Japan. He has made significant contributions to the field of optical-fiber technology, particularly in the development of submarine cables. His innovative designs have enhanced the capabilities of underwater communication systems.
Latest Patents
Kazumasa Nemoto holds a patent for a submarine optical-fiber cable that features a central metal wire and a slotted rod surrounding the wires. This cable includes an absorbent sheath, strength members helically wound around the sheath, a metal jacket, and a plastic sheath. The slotted rod is designed with peripheral helical slots that can accommodate optical fibers or ribbons. Each optical fiber is engineered to have a tensile strain ranging from about 0.015 to 0.3% along its axis. The absorbent sheath is crucial for water absorption, making the cable suitable for deep-sea operations, cable laying, recovery, and quick repairs. The modulated strain distribution in the optical fibers effectively suppresses stimulated Brillouin scattering.
Career Highlights
Throughout his career, Kazumasa Nemoto has worked with prominent companies such as Nippon Telegraph and Telephone Corporation and Ocean Cable Co., Ltd. His experience in these organizations has contributed to his expertise in optical-fiber technology and submarine cable design.
Collaborations
Kazumasa Nemoto has collaborated with notable colleagues, including Nobuyuki Yoshizawa and Tadatoshi Tanifuji. Their combined efforts have further advanced the field of submarine optical-fiber technology.
Conclusion
Kazumasa Nemoto's innovative work in submarine optical-fiber cables has significantly impacted underwater communication technology. His patents and collaborations reflect his dedication to advancing this essential field.