YU

Yasuhito Urashima

SK Showa Denko K.K.: 6 patents #217 of 1,736Top 15%
Overall (All Time): #863,119 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8173461 Process for fabrication of nitride semiconductor light emitting device 2012-05-08
7935955 Group III nitride semiconductor multilayer structure 2011-05-03
7803648 Nitride semiconductor light-emitting device and method for fabrication thereof 2010-09-28
7652299 Nitride semiconductor light-emitting device and method for fabrication thereof Katsuki Kusunoki 2010-01-26
7479663 Gallium nitride-based semiconductor light emitting device and process for its production 2009-01-20
6852161 METHOD OF FABRICATING GROUP-III NITRIDE SEMICONDUCTOR CRYSTAL, METHOD OF FABRICATING GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR, GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR, GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR LIGHT-EMITTING DEVICE, AND LIGHT SOURCE USING THE SEMICONDUCTOR LIGHT-EMITTING DEVICE Mineo Okuyama, Tetsuo Sakurai, Hisayuki Miki 2005-02-08