YK

Yoshitomo Kumai

SE Seiko Epson: 31 patents #478 of 7,774Top 7%
Overall (All Time): #117,014 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
8094373 Polarization element, method for manufacturing the same, liquid crystal device, and electronic apparatus 2012-01-10
7969534 Polarizing element, polarizing element manufacturing method, liquid crystal device, and projection display Huiping Zhang 2011-06-28
7894020 Polarizing device, method for manufacturing the same, liquid crystal device, and projection display device 2011-02-22
7755717 Polarizing element, polarizing element manufacturing method, liquid crystal device, and projection display Huiping Zhang 2010-07-13
7666468 Method for manufacturing optical element Daisuke Sawaki 2010-02-23
7608474 Method for manufacturing optical element Daisuke Sawaki 2009-10-27