YI

Yasunori Izawa

PE Pentax: 1 patents #93 of 186Top 50%
Overall (1994): #50,092 of 165,921Top 35%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5353072 Aspherical spectacle lens Yasuyuki Tejima, Moriyasu Shirayanagi 1994-10-04