Inventor

YOSHIZAWA Fumikazu

JP4 patents

Patents

4 patents

US11181709B2Nov 23, 2021

Manufacturing method of optical fiber ribbon and manufacturing apparatus thereof

SUMITOMO ELECTRIC INDUSTRIES0 citations60

US11860438B2Jan 2, 2024

Method for manufacturing intermittent connection-type optical fiber tape core wire and intermittent connection-type optical fiber tape core wire

SUMITOMO ELECTRIC INDUSTRIES0 citations59

US12280974B2Apr 22, 2025

Tape supply device, optical cable manufacturing apparatus, and optical cable manufacturing method

SUMITOMO ELECTRIC INDUSTRIES1 citations56

US12554085B2Feb 17, 2026

Optical fiber ribbon

SUMITOMO ELECTRIC INDUSTRIES0 citations53