YC

Ya Cheng

RI Riken: 1 patents #679 of 1,824Top 40%
Overall (All Time): #3,363,057 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7411151 Method and device for processing inside of transparent material Koji Sugioka, Katsumi Midorikawa 2008-08-12