SS

Shigeaki Sumiya

NI Ngk Insulators: 27 patents #106 of 2,083Top 6%
DC Dowa Electronics Materials Co.: 1 patents #148 of 241Top 65%
Overall (All Time): #146,995 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #TitleCo-InventorsDate
6703255 Method for fabricating a III nitride film Tomohiko Shibata, Keiichiro Asai, Mitsuhiro Tanaka 2004-03-09
6597023 Semiconductor light-detecting element Tomohiko Shibata, Keiichiro Asai, Mitsuhiro Tanaka 2003-07-22