YS

Yohei Sakai

SE Seiko Epson: 2 patents #348 of 1,442Top 25%
Overall (2011): #56,052 of 364,097Top 20%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7922331 Polarization conversion unit, polarization conversion device, and projector 2011-04-12
7922335 Projector Akira Hashimoto, Fumihide Sasaki 2011-04-12