KS

Keiji Sakai

OC Osaka Gas Chemicals Co.: 1 patents #2 of 17Top 15%
UN Unitika: 1 patents #2 of 18Top 15%
Overall (2025): #317,568 of 469,880Top 70%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12258284 Activated carbon Tomoyasu Nakano, Hirokazu Shimizu 2025-03-25