KO

Koichiro Oka

YC Yamamoto Kogaku Co.: 1 patents #3 of 9Top 35%
Overall (2002): #171,713 of 266,432Top 65%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6455163 Transparent optical article Masahiko Okamoto 2002-09-24