Location History:
- Yokohama, JP (1987 - 1988)
- Tokyo, JP (1989)
Company Filing History:
3 out of 5 
1 out of 614 
1 out of 522 Years Active: 1987-1989
Title: The Innovative Contributions of Kiyoshi Funaki
Introduction
Kiyoshi Funaki is a notable inventor based in Yokohama, Japan, recognized for his pioneering work in the field of optical fiber technology. With a total of three patents to his name, Funaki's contributions have significantly advanced the capabilities of submarine optical fiber cables, enhancing communication systems across the globe.
Latest Patents
Among his latest inventions is a pressure-resistant sheath for submarine optical fiber cables. This patent outlines a method involving the use of a two-liquid mixing and curing-type polyurethane resin. The resin is characterized by specific values in tensile break strength, breaking extension, creep characteristics, and compression modulus of elasticity. The innovative process involves pumping this resin into voids surrounding the optical fibers and tension members of the cable, thereby enhancing the durability and performance of the optical fiber cable in challenging underwater environments.
Career Highlights
Throughout his career, Kiyoshi Funaki has made significant contributions while working for reputable companies such as Ocean Cable Co., Ltd. and Nippon Telegraph and Telephone Public Corporation. His dedication to advancing optical technology has positioned him as a key player in the industry, driving innovation and improvement in communication infrastructure.
Collaborations
Funaki has collaborated with esteemed colleagues, including Kenichi Mochizuki and Koushi Ishihara. These partnerships have fostered a collaborative environment, enabling the exchange of ideas and techniques that have led to groundbreaking advancements in optical fiber technology.
Conclusion
Kiyoshi Funaki's innovative spirit and commitment to excellence have made a lasting impact on the field of optical communication. His patents on submarine optical fiber cables showcase his ability to blend scientific knowledge with practical application, ensuring that communication systems are resilient and efficient. As technology continues to evolve, Funaki's contributions remain vital in shaping the future of the industry.