YS

Yuji SHIBUTANI

SC Seikoh Giken Co.: 2 patents #4 of 11Top 40%
Overall (2022): #92,653 of 548,613Top 20%
2
Patents 2022

Issued Patents 2022

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11474305 End face polishing device for optical fiber ferrule Atsushi Yamada 2022-10-18
11389926 Optical fiber ferrule polishing jig and placing member 2022-07-19