YS

Yasutaka Sonobe

KT Kabushiki Kaisha Toshiba: 4 patents #6,684 of 21,451Top 35%
Overall (All Time): #1,257,091 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7106565 Directional ground relay system Takahiro Kase, Hidenari Amo 2006-09-12
6989977 Digital directional relay Takahiro Kase, Hidenari Amo 2006-01-24
6937453 Directional comparison distance relay system Takahiro Kase, Hidenari Amo 2005-08-30
6873508 Protective relay system Takahiro Kase, Hidenari Amo 2005-03-29