TS

Tsutomu Shishido

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #2,335,273 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4726072 Double converter tuner Sadahiko Yamashita, Makoto Hasegawa, Motoi Ohba, Yasumasa Watanabe 1988-02-16
4661998 Double superheterodyne tuner Sadahiko Yamashita, Makoto Hasegawa, Motoi Ohba, Koh Kikuchi 1987-04-28