SK

Shumi Kumagai

Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Tdk: 1 patents #2,493 of 3,796Top 70%
Overall (All Time): #2,161,642 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7277270 Multilayer filter Takahiro Sato, Kentaro Yoshida, Masashi Orihara 2007-10-02
4342051 Method of and system for reproducing or transmitting half-tone images Kazufumi Suzuki, Yuetsu Ochiai, Akira Mizoguchi 1982-07-27