RS

Ryoji Sakamoto

Sumitomo Electric Industries: 4 patents #6,367 of 21,551Top 30%
Overall (All Time): #1,268,916 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6555850 Field-effect transistor Shigeru Nakajima 2003-04-29
6333523 Field-effect transistor Tatsuya Hashinaga 2001-12-25
5742480 Optical module circuit board having flexible structure Sosaku Sawada, Hiromi Kurashima, Daisuke Takagi, Satoshi Ohe, Takeshi Sekiguchi +1 more 1998-04-21
5596665 Optical module having structure for defining fixing position of sleeve Hiromi Kurashima, Hisato Takahashi, Ken-ichi Kitayama, Sosaku Sawada, Takeshi Sekiguchi +2 more 1997-01-21