YI

Yukihiro Izumitami

HO Hoya: 2 patents #523 of 1,290Top 45%
Overall (All Time): #2,231,893 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
RE37461 Spectacle lens holding structure 2001-12-04
RE37425 Spectacle lens holding structure 2001-10-30