YS

Yuko Senda

PE Pentax: 1 patents #70 of 165Top 45%
📍 Tochigi, JP: #92 of 285 inventorsTop 35%
Overall (2005): #68,180 of 245,428Top 30%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6837580 Progressive power lens Yasuyuki Tejima 2005-01-04