TU

Toshihiko Umezu

Nichia: 3 patents #567 of 1,531Top 40%
📍 Anan, JP: #158 of 306 inventorsTop 55%
Overall (All Time): #1,576,375 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7550096 Light emitting diode, optical semiconductor device, epoxy resin composition and phosphor suited for optical semiconductor device, and method for manufacturing the same Kensho Sakano, Kazuhiko Sakai, Yuji Okada 2009-06-23
7342357 Light emitting diode, optical semiconductor device, epoxy resin composition suited for optical semiconductor device, and method for manufacturing the same Kensho Sakano, Kazuhiko Sakai, Yuji Okada 2008-03-11
6960878 Light emitting diode, optical semiconductor element and epoxy resin composition suitable for optical semiconductor element and production methods therefor Kensho Sakano, Kazuhiko Sakai, Yuji Okada 2005-11-01