KO

Keigo Okubo

CH Chiyoda: 1 patents #141 of 358Top 40%
NP Nagano Prefecture: 1 patents #8 of 15Top 55%
Overall (All Time): #3,990,715 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4571287 Electrolytically producing anodic oxidation coat on Al or Al alloy Shoji Toba, Tokuo Kumagai 1986-02-18