HS

Hiroshi Soboi

MC Mitsui Mining & Smelting Co.: 1 patents #444 of 838Top 55%
📍 Tama, JP: #254 of 402 inventorsTop 65%
Overall (All Time): #3,875,313 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5011510 Composite abrasive-articles and manufacturing method therefor Izumi Hayakawa 1991-04-30