JI

Junichiro Ichikawa

SC Sumitomo Osaka Cement Co.: 1 patents #19 of 52Top 40%
Overall (2022): #387,417 of 548,613Top 75%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11347086 Optical element Katsutoshi Kondo, Kiyotaka Nakano, Eiji Murakami 2022-05-31