JK

Joonhaeng Kang

OC Okuno Chemical Industries Co.: 1 patents #25 of 77Top 35%
Overall (All Time): #2,838,855 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10184186 Composition for blackening copper-based or silver-based metals Azusa Kita, Hiroaki Sakai 2019-01-22