JN

Jihei Nakagawa

SI Sigma: 1 patents #21 of 40Top 55%
Overall (All Time): #2,350,523 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4624536 Four component zoom lens 1986-11-25
4232940 Objective lens system for microscopes 1980-11-11