YK

Yasuo Kusumi

HO Hoya: 2 patents #523 of 1,290Top 45%
📍 Akishima, JP: #243 of 519 inventorsTop 50%
Overall (All Time): #2,310,309 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5125949 Mold for producing glass articles Shinichiro Hirota, Hiroyuki Sawada 1992-06-30
4882827 Process for producing glass mold Ken Uno, Takuo Fujino 1989-11-28