This inventor holds 1 USPTO granted patent. Top assignees: Nippon Telegraph and Telephone Corporation, Sumitomo Electric Industries, Limited. Active years: 1993.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 5,300 
1 out of 10,652 
Years Active: 1993
Title: Kyoji Maruyama and His Optical-Fiber Invention.
Introduction
Kyoji Maruyama is an inventor associated with Yokohama, Japan. His work includes a patented mechanism designed to manage excess optical fiber at a cable terminal.
Latest Patents
Maruyama is credited with 1 patent, titled “Redundant Length Treatment Mechanism for Optical Fiber at Terminal.” The invention provides a storage case for excess optical fiber exposed from an optical cable, where the fiber can be arranged in a loop, bent, or S-shaped form. A draw-out portion allows one end of the stored fiber to be routed from the case, while a pair of stoppers secured to the fiber restrict its curvature. This design helps manage redundant fiber while limiting bends that could compromise the optical fiber.
Career Highlights
Maruyama’s professional associations include Nippon Telegraph and Telephone Corporation and Sumitomo Electric Industries, Limited. His patent reflects work on practical components for organizing and protecting optical fiber at cable terminals.
Collaborations
His listed coworkers include Tadashi Haibara and Tomohiko Ueda. Their shared professional context connects them to work involving telecommunications and optical-fiber technology.
Conclusion
Kyoji Maruyama’s patented mechanism addresses the practical challenge of storing excess optical fiber while controlling its curvature, highlighting his contribution to optical-fiber cable technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile