Satoshi Nishiyama

Title: Satoshi Nishiyama: Cable and Optical-Fiber Innovations

Introduction

Satoshi Nishiyama is an inventor based in Kanagawa, Japan, whose patent work addresses optical-fiber identification and cable manufacturing. He is associated with Sumitomo Electric Industries, Limited, and holds 2 patents.

Latest Patents

Nishiyama’s patent, “Fiber Identification in an Optical Fiber Composite Overhead Ground Wire,” describes a system for uniquely identifying optical fibers within a composite overhead ground wire. The fibers are grouped into optical units wound around tension members, with units arranged in a spacer and surrounded by ground wires. Color and winding order can distinguish fibers within each unit, while identifying the tension members helps make each fiber traceable.

His patent, “Apparatus for the Production of Laminated Sheath Cables,” concerns a process for improving contact between a cable core and its laminated tape sheath. The tape is wrapped lengthwise around the core with overlapping portions, then heated and pressed at one position by at least three rollers. The rollers’ arc lengths are determined in relation to the assembled cable’s circumference and the number of rollers.

Career Highlights

Nishiyama’s inventions focus on practical challenges in cable design and production. His work covers both reliable identification of optical fibers in overhead ground wires and the manufacture of laminated sheath cables with improved contact between layers.

Collaborations

Nishiyama’s listed coworkers include Fumio Harano and Shigeyoshi Kaneta. His association with Sumitomo Electric Industries, Limited, places his patent work within a company active in electrical and cable technologies.

Conclusion

Satoshi Nishiyama’s patents demonstrate a focused contribution to optical-fiber identification and cable manufacturing, with innovations aimed at improving traceability and product construction.