YF

Yoshimi Fukasawa

NI Nisca: 2 patents #165 of 371Top 45%
📍 Hayakawa, JP: #13 of 18 inventorsTop 75%
Overall (All Time): #2,140,926 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7625142 Light quantity adjusting device — 2009-12-01
5262812 Blades actuation device for light path — 1993-11-16